Lincoln Nautilus: Controller Area Network (CAN) Module Communications Network / Controller Area Network (CAN) Module Communications Network. Diagnosis and Testing

Lincoln Nautilus 2018-2024 Service Manual / Electrical / Electrical Distribution / Controller Area Network (CAN) Module Communications Network / Controller Area Network (CAN) Module Communications Network. Diagnosis and Testing

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Module	DTC	Description	Action
GWM	U0001:09	High Speed CAN Communication Bus: Component Failures	GO to Pinpoint Test AR
GWM	U0214:00	Lost Communication With Remote Function Actuation Module: No Sub Type Information	GO to Pinpoint Test AS
GWM	U1A01:00	Communication Link: No Sub Type Information	GO to Pinpoint Test AT
GWM	U2100:00	Initial Configuration Not Complete: No Sub Type Information	GO to Pinpoint Test AU
GWM	U2200:00	Control Module Configuration Memory Corrupt: No Sub Type Information	GO to Pinpoint Test AU
GWM	U3000:04	Control Module: System Internal Failures	GO to Pinpoint Test AV
GWM	U3000:43	Control Module: Special Memory Failure	GO to Pinpoint Test AV
GWM	U3000:49	Control Module: Internal Electronic Failure	GO to Pinpoint Test AV
GWM	U3000:57	Control Module: Invalid/Incompatible Software Component	GO to Pinpoint Test AW
GWM	U3003:16	Battery Voltage: Circuit Voltage Below Threshold	GO to Pinpoint Test AX
GWM	U3003:17	Battery Voltage: Circuit Voltage Above Threshold	GO to Pinpoint Test AY

Symptom Chart(s)

Symptom Chart: Communication Network

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Symptom Chart

Condition	Actions
The vehicle does not start with the diagnostic scan tool connected to the remote DLC and/or multiple malfunction indicators are only on when the diagnostic scan tool is connected to the remote DLC	GO to Pinpoint Test A
No power to the remote DLC	GO to Pinpoint Test A
No HS-CAN1 communication, all modules are not responding	GO to Pinpoint Test B
No HS-CAN2 communication, all modules are not responding	GO to Pinpoint Test C
No HS-CAN3 communication, all modules are not responding	GO to Pinpoint Test D
No HS-CAN4 communication, all modules are not responding	GO to Pinpoint Test E
No MS-CAN communication, module is not responding	GO to Pinpoint Test F
All networks do not respond to the diagnostic scan tool	GO to Pinpoint Test G
The ABS module does not respond to the diagnostic scan tool	GO to Pinpoint Test H
The ACM does not respond to the diagnostic scan tool	GO to Pinpoint Test I
The APIM does not respond to the diagnostic scan tool	GO to Pinpoint Test J
The AWD module does not respond to the diagnostic scan tool	GO to Pinpoint Test K
The BCM does not respond to the diagnostic scan tool	GO to Pinpoint Test L
The DACMC does not respond to the diagnostic scan tool (integrated with the ACM )	GO to Pinpoint Test I
The DCDC (VQM) does not respond to the diagnostic scan tool	GO to Pinpoint Test M
The DDM does not respond to the diagnostic scan tool	GO to Pinpoint Test N
The DSM does not respond to the diagnostic scan tool	GO to Pinpoint Test O
The DSP does not respond to the diagnostic scan tool	GO to Pinpoint Test P
The FCIMB does not respond to the diagnostic scan tool	GO to Pinpoint Test Q
The GSM does not respond to the diagnostic scan tool	GO to Pinpoint Test R
The HCM does not respond to the diagnostic scan tool	GO to Pinpoint Test S
The HSWM does not respond to the diagnostic scan tool	GO to Pinpoint Test T
The HVAC module does not respond to the diagnostic scan tool	GO to Pinpoint Test U
The IPC does not respond to the diagnostic scan tool	GO to Pinpoint Test V
The IPMA does not respond to the diagnostic scan tool	GO to Pinpoint Test W
The IPMB does not respond to the diagnostic scan tool	GO to Pinpoint Test X
The OCS module does not respond to the diagnostic scan tool	GO to Pinpoint Test Y
The PAM does not respond to the diagnostic scan tool (rear parking aid camera only)	GO to Pinpoint Test Z
The PCM does not respond to the diagnostic scan tool	GO to Pinpoint Test AA
The PDM does not respond to the diagnostic scan tool	GO to Pinpoint Test AB
The PSCM does not respond to the diagnostic scan tool	GO to Pinpoint Test AC
The RCM does not respond to the diagnostic scan tool	GO to Pinpoint Test AD
The RFA module does not respond to the diagnostic scan tool	GO to Pinpoint Test AE
The RGTM does not respond to the diagnostic scan tool	GO to Pinpoint Test AF
The RTM does not respond to the diagnostic scan tool	GO to Pinpoint Test AG
The SCCM does not respond to the diagnostic scan tool	GO to Pinpoint Test AH
The SCMB does not respond to the diagnostic scan tool	GO to Pinpoint Test AI
The SCME does not respond to the diagnostic scan tool (integrated with the DSM	GO to Pinpoint Test O
The SCMG does not respond to the diagnostic scan tool	GO to Pinpoint Test AJ
The SCMH does not respond to the diagnostic scan tool	GO to Pinpoint Test AK
The SODL does not respond to the diagnostic scan tool	GO to Pinpoint Test AL
The SODR does not respond to the diagnostic scan tool	GO to Pinpoint Test AM
The TCU does not respond to the diagnostic scan tool	GO to Pinpoint Test AN
The TRM does not respond to the diagnostic scan tool	GO to Pinpoint Test AO
The VDM does not respond to the diagnostic scan tool	GO to Pinpoint Test AP
The WACM does not respond to the diagnostic scan tool	GO to Pinpoint Test AQ

Pinpoint Tests

PINPOINT TEST A: NO POWER TO THE REMOTE DLC (DATA LINK CONNECTOR)

Normal Operation and Fault Conditions

The diagnostic scan tool is connected to the remote DLC to communicate with the DIAG1 and DIAG2 networks. The GWM translates diagnostic messages for the HS-CAN1 , HS-CAN2 , HS-CAN3 , HS-CAN4 and the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connector
Diagnostic scan tool
Remote DLC

Visual Inspection and Pre-checks

Verify BCM fuse 29 (15A) is OK.

A1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC .

Inspect the remote DLC pins 4, 5 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with remote DLC pins 4, 5 and 16?

Yes

GO to A2

A2 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) VOLTAGE SUPPLY FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-16 Ground

Is the voltage greater than 11 volts?

Yes

GO to A3

No	VERIFY BCM fuse 29 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

A3 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) GROUND CIRCUITS FOR AN OPEN

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-4 Ground

C2122-5 Ground

Are the resistances less than 3 ohms?

Yes

CHECK the diagnostic scan tool for correct operation.

No	REPAIR the circuit in question.

PINPOINT TEST B: NO HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The HS-CAN1 modules communicate with the diagnostic scan tool through the remote DLC DIAG1 circuits. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connectors
Remote DLC
AWD module (if equipped)
BCM
DCDC (VQM) (if equipped)
GWM
PAM
PCM

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

B1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC .

Inspect the remote DLC pins 4, 5, 6, 14 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with remote DLC pins 4, 5, 6, 14 and 16 OK?

Yes

GO to B2

B2 CHECK THE DIAG1 NETWORK CIRCUIT TERMINATION RESISTANCE

Disconnect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 C2122-14

Is the resistance between 108 and 132 ohms?

Yes

GO to B3

No	If the resistance is greater than 132 ohms, GO to B5 If the resistance is less than 108 ohms, GO to B6

B3 CHECK THE DIAG1 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO GROUND

Connect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 Ground

C2122-14 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to B4

GO to B7

B4 CHECK THE DIAG1 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 Ground

C2122-14 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to B8

B5 CHECK THE DIAG1 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR AN OPEN WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 C4931A-5

C2122-14 C4931A-18

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to B25

No	REPAIR the circuit in question.

B6 CHECK THE DIAG1 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TOGETHER WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 C2122-14

Is the resistance greater than 1,000 ohms?

Yes

CONNECT the negative battery cable. GO to B25

No	REPAIR the circuit.

B7 CHECK THE DIAG1 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO GROUND WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-6 Ground

C2122-14 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to B25

No	REPAIR the circuit in question.

B8 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) TERMINATION RESISTOR ( PCM (POWERTRAIN CONTROL MODULE) ) WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Ignition OFF.

Disconnect the negative battery cable.

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 C4931A-20

Is the resistance between 108 and 132 ohms?

Yes

GO to B9

No	If the resistance is greater than 132 ohms, GO to B12 If the resistance is less than 108 ohms, GO to B13

B9 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (+) AND HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (-) CIRCUITS FOR A SHORT TO GROUND

Connect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 Ground

C4931A-20 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to B10

GO to B14

B10 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (+) AND HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 Ground

C4931A-20 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to B11

B11 CHECK THE GWM (GATEWAY MODULE A) HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 (Component Side) C4931A-20 (Component Side)

Is the resistance between 108 ohms and 132 ohms?

Yes

GO to B25

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

B12 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) CIRCUITS BETWEEN THE PCM (POWERTRAIN CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect PCM C1381B (2.0L GTDI) or C1551B (2.7L GTDI).

Measure:
Click to display connectors
2.0L

Positive Lead Measurement / Action Negative Lead

C1381B-67 C4931A-7

C1381B-66 C4931A-20

Click to display connectors
2.7L

Positive Lead Measurement / Action Negative Lead

C1551B-27 C4931A-7

C1551B-12 C4931A-20

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to B15

No	REPAIR the circuit in question.

B13 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (+) AND HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 C4931A-20

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- AWD module C3841 (if equipped)
- BCM C2280B
- DCDC (VQM) C2513 (if equipped)
- PAM C3237A
- PCM C1381B (2.0L) or C1551B (2.7L)

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

CONNECT all disconnected connectors.
For the AWD module, GO to B22
For the BCM , GO to B23
For the DCDC (VQM), GO to B24
For the PAM , GO to B26
For the PCM , GO to B27

No	REPAIR the circuit in question. CONNECT all modules.

B14 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (+) AND HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 Ground

C4931A-20 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- AWD module C3841 (if equipped)
- BCM C2280B
- DCDC (VQM) C2513 (if equipped)
- PAM C3237A
- PCM C1381B (2.0L) or C1551B (2.7L)

Did the resistance change to greater than 1,000 ohms with one of the modules disconnected?

Yes

CONNECT the GWM .
For the AWD module, GO to B22
For the BCM , GO to B23
For the DCDC (VQM), GO to B24
For the PAM , GO to B26
For the PCM , GO to B27

No	REPAIR the circuit in question. CONNECT all modules.

B15 CHECK FOR RESTORED COMMUNICATION WITH THE PCM (POWERTRAIN CONTROL MODULE) DISABLED

Disconnect: BJB fuses 7 (20A) and 26 (10A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test AA

No	INSTALL the removed fuses. GO to B16

B16 VERIFY VEHICLE EQUIPMENT - DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM)

Inspect the vehicle for a DCDC (VQM).

Is the vehicle equipped with a DCDC (VQM)?

Yes

GO to B17

GO to B18

B17 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: High Current BJB fuse 3 (50A) and BJB fuse 23 (15A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN1 modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test M

No	INSTALL the removed fuses. GO to B18

B18 VERIFY VEHICLE EQUIPMENT - AWD (ALL-WHEEL DRIVE)

Inspect the vehicle for AWD .

Is the vehicle equipped with AWD ?

Yes

GO to B19

GO to B20

B19 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE AWD (ALL-WHEEL DRIVE) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 12 (15A) and AJB fuse 1 (40A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN1 modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test K

No	INSTALL the removed fuses. GO to B20

B20 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE PAM (PARKING ASSIST CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 37 (20A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN1 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test Z

No	INSTALL the removed fuse. GO to B21

B21 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM C2280B.

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN1 modules pass the network test?

Yes

CONNECT BCM C2280B. GO to Pinpoint Test L

No	CONNECT BCM C2280B. The HS-CAN1 tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

B22 CHECK FOR CORRECT AWD (ALL-WHEEL DRIVE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the AWD module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the AWD module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new AWD module.
REFER to: All-Wheel Drive (AWD) Module (307-07A Four-Wheel Drive Systems, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B23 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the BCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B24 CHECK FOR CORRECT DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) OPERATION

Ignition OFF.

Disconnect and inspect the DCDC (VQM) connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DCDC (VQM) connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DCDC (VQM).
REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module (414-05 Voltage Converter/Inverter, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B25 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B26 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PAM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PAM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B27 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

Click here to access Guided Routine (PCM).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C: NO HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The HS-CAN2 modules communicate with the diagnostic scan tool through the remote DLC DIAG2 circuits. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connectors
Remote DLC
ABS module
GSM
GWM
HCM (if equipped)
IPMA (if equipped)
IPMB (if equipped)
OCS module
PSCM
RCM
SCCM
VDM (if equipped)

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

C1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC C2122.

Inspect the remote DLC pins 3, 4, 5, 11 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with the remote DLC pins 3, 4, 5, 11 and 16 ?

Yes

GO to C2

C2 CHECK THE DIAG2 NETWORK CIRCUIT TERMINATION RESISTANCE

Disconnect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 C2122-11

Is the resistance between 108 and 132 ohms?

Yes

GO to C3

No	If the resistance is greater than 132 ohms, GO to C5 If the resistance is less than 108 ohms, GO to C6

C3 CHECK THE DIAG2 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO GROUND

Connect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 Ground

C2122-11 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to C4

GO to C7

C4 CHECK THE DIAG2 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 Ground

C2122-11 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to C8

C5 CHECK THE DIAG2 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR AN OPEN WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 C4931A-6

C2122-11 C4931A-19

Are the resistances less than 3 ohms?

Yes

CONNECT the negative battery cable. GO to C31

No	REPAIR the circuit in question.

C6 CHECK THE DIAG2 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TOGETHER WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 C2122-11

Is the resistance greater than 1,000 ohms?

Yes

CONNECT the negative battery cable. GO to C31

No	REPAIR the circuits.

C7 CHECK THE DIAG2 NETWORK CIRCUIT (+) AND (-) CIRCUITS FOR A SHORT TO GROUND WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2122-3 Ground

C2122-11 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to C31

No	REPAIR the circuit in question.

C8 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) TERMINATION RESISTOR ( SCCM (STEERING COLUMN CONTROL MODULE) ) WITH THE GWM (GATEWAY MODULE A) DISCONNECTED

Ignition OFF.

Disconnect the negative battery cable.

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 C4931A-21

Is the resistance between 108 and 132 ohms?

Yes

GO to C9

No	If the resistance is greater than 132 ohms, GO to C12 If the resistance is less than 108 ohms, GO to C13

C9 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (+) AND HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (-) CIRCUITS FOR A SHORT TO GROUND

Connect the negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 Ground

C4931A-21 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to C10

GO to C14

C10 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (+) AND HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 Ground

C4931A-21 Ground

Is the voltage greater than 6 volts on either circuit?

Yes

REPAIR the circuit in question.

GO to C11

C11 CHECK THE GWM (GATEWAY MODULE A) HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 (Component Side) C4931A-21 (Component Side)

Is the resistance between 108 ohms and 132 ohms?

Yes

GO to C31

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

C12 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE SCCM (STEERING COLUMN CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect SCCM C226A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C226A-3 C4931A-8

C226A-4 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to C15

No	REPAIR the circuit in question.

C13 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (+) AND HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 C4931A-21

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- ABS module C135
- GSM C3532
- HCM C2129 (if equipped)
- IPMA C9224 (if equipped)
- IPMB C3676A (if equipped)
- OCS module C3043
- PSCM C1463A
- RCM C310B
- SCCM C226A
- VDM C4396D (if equipped)

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

CONNECT all disconnected connectors.
For the ABS module, GO to C29
For the GSM , GO to C30
For the HCM , GO to C32
For the IPMA , GO to C33
For the IPMB , GO to C34
For the OCS module, GO to C35
For the PSCM , GO to C36
For the RCM , GO to C37
For the SCCM , GO to C38
For the VDM , GO to C39

No	REPAIR the circuit in question. CONNECT all modules.

C14 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (+) AND HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 Ground

C4931A-21 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- ABS module C135
- GSM C3532
- HCM C2129 (if equipped)
- IPMA C9224 (if equipped)
- IPMB C3676A (if equipped)
- OCS module C3043
- PSCM C1463A
- RCM C310B
- SCCM C226A
- VDM C4396D (if equipped)

Did the resistance change to greater than 1,000 ohms with one of the modules disconnected?

Yes

CONNECT the GWM .
For the ABS module, GO to C29
For the GSM , GO to C30
For the HCM , GO to C32
For the IPMA , GO to C33
For the IPMB , GO to C34
For the OCS module, GO to C35
For the PSCM , GO to C36
For the RCM , GO to C37
For the SCCM , GO to C38
For the VDM , GO to C39

No	REPAIR the circuit in question. CONNECT all modules.

C15 CHECK FOR RESTORED COMMUNICATION WITH THE SCCM (STEERING COLUMN CONTROL MODULE) DISCONNECTED

Disconnect: SCCM C226A.

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test AH

No	CONNECT the module. GO to C16

C16 CHECK FOR RESTORED COMMUNICATION WITH THE GSM (GEAR SHIFT MODULE) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results. Disconnect: GSM C3532.

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test R

No	CONNECT the module. GO to C17

C17 CHECK FOR RESTORED COMMUNICATION WITH THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results. Disconnect: BJB fuses 25 (10A), 69 (30A) and 87 (60A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test H

No	INSTALL the removed fuses. GO to C18

C18 VERIFY VEHICLE EQUIPMENT - HCM (HEADLAMP CONTROL MODULE)

Inspect the vehicle for a HCM .

Is the vehicle equipped with a HCM ?

Yes

GO to C19

GO to C20

C19 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HCM (HEADLAMP CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 17 (7.5A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test S

No	INSTALL the removed fuse. GO to C20

C20 VERIFY VEHICLE EQUIPMENT - SPLIT VIEW CAMERA

Inspect the vehicle for a split view camera.

Is the vehicle equipped with a split view camera?

Yes

GO to C21

GO to C22

C21 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IPMB (IMAGE PROCESSING MODULE B) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 23 (15A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test X

No	INSTALL the removed fuse. GO to C22

C22 VERIFY VEHICLE EQUIPMENT - IPMA (IMAGE PROCESSING MODULE A)

Inspect the vehicle for an IPMA .

Is the vehicle equipped with an IPMA ?

Yes

GO to C23

GO to C24

C23 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE IPMA (IMAGE PROCESSING MODULE A) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 37 (20A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test W

No	INSTALL the removed fuse. GO to C24

C24 VERIFY VEHICLE EQUIPMENT - VDM (VEHICLE DYNAMICS CONTROL MODULE)

Inspect the vehicle for a VDM .

Is the vehicle equipped with a VDM ?

Yes

GO to C25

GO to C26

C25 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE VDM (VEHICLE DYNAMICS CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 36 (15A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AP

No	INSTALL the removed fuse. GO to C26

C26 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE PSCM (POWER STEERING CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: High Current BJB fuse 8 (80A) and BJB fuse 19 (10A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test AC

No	INSTALL the removed fuses. GO to C27

C27 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: OCS module C3043.

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN2 modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test Y

No	CONNECT the module. GO to C28

C28 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RCM (RESTRAINTS CONTROL MODULE) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: RCM C310B.

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test AD

No	CONNECT the module. The HS-CAN2 tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

C29 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the ABS module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the ABS module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C30 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the GSM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GSM .
REFER to: Gear Shift Module (GSM) (307-05A Automatic Transmission External Controls - 8-Speed Automatic Transmission – 8F57, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C31 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C32 CHECK FOR CORRECT HCM (HEADLAMP CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the HCM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HCM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HCM .
REFER to: Headlamp Control Module (HCM) (417-01 Exterior Lighting, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C33 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMA connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMA .
REFER to: Image Processing Module A (IPMA) (419-07 Lane Keeping System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C34 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect all the IPMB connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPMB .
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C35 CHECK FOR CORRECT OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the OCS module connector and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the OCS module connector and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new OCS module. If not equipped with multi-contour seats,
REFER to: Occupant Classification System (OCS) Sensor (501-20B Supplemental Restraint System, Removal and Installation).
If equipped with multi-contour seats, REFER to: Occupant Classification System (OCS) Sensor - Vehicles With: Multi-Contour Seats (501-20B Supplemental Restraint System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C36 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PSCM connectors and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PSCM connectors and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C37 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the RCM connectors and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RCM connectors and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C38 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the SCCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C39 CHECK FOR CORRECT VDM (VEHICLE DYNAMICS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the VDM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the VDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new VDM .
REFER to: Vehicle Dynamics Control Module (VDM) (204-05 Vehicle Dynamic Suspension, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: NO HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

Diagnostic messages sent/received between the diagnostic scan tool and the HS-CAN3 modules are accessed through the DIAG2 circuits on the remote DLC . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connectors
Remote DLC
ACM
APIM
DSP (if equipped)
FCIMB
IPC
GWM
WACM (if equipped)

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

D1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC C2122.

Inspect the remote DLC pins 3, 4, 5, 11 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with the remote DLC pins 3, 4, 5, 11 and 16?

Yes

GO to D2

D2 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) ( IPC (INSTRUMENT PANEL CLUSTER) ) TERMINATION RESISTANCE

Disconnect negative battery cable.

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 C4931A-22

Is the resistance between 108 and 132 ohms?

Yes

GO to D3

No	If the resistance is greater than 132 ohms, GO to D6 If the resistance is less than 108 ohms, GO to D7

D3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (+) AND HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (-) CIRCUITS FOR A SHORT TO GROUND

Connect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 Ground

C4931A-22 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to D4

GO to D8

D4 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (+) AND HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 Ground

C4931A-22 Ground

Are the voltages greater than 6 volts?

Yes

REPAIR the circuit in question.

GO to D5

D5 CHECK THE GWM (GATEWAY MODULE A) HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 (Component Side) C4931A-22 (Component Side)

Is the resistance between 108 and 132 ohms?

Yes

GO to D22

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

D6 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: IPC C220.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220-12 C4931A-9

C220-13 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to D9

No	REPAIR the circuit in question.

D7 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (+) AND HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 C4931A-22

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- ACM C240A
- APIM C2383A
- DSP C4326C (mid-level) or C4452D (high-level) (if equipped)
- FCIMB C3042
- IPC C220
- WACM C3853 (if equipped)

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

CONNECT all disconnected connectors.
For the ACM , GO to D17
For the APIM , GO to D18
For the DSP , GO to D19
For the FCIMB , GO to D20
For the IPC , GO to D21
For the WACM , GO to D23

No	REPAIR the circuits in question. CONNECT all modules.

D8 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (+) AND HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 Ground

C4931A-22 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- ACM C240A
- APIM C2383A
- DSP C4326C (mid-level) or C4452D (high-level) (if equipped)
- FCIMB C3042
- IPC C220
- WACM C3853 (if equipped)

Are the resistances greater than 1,000 ohms?

Yes

CONNECT the GWM .
For the ACM , GO to D17
For the APIM , GO to D18
For the DSP , GO to D19
For the FCIMB , GO to D20
For the IPC , GO to D21
For the WACM , GO to D23

No	REPAIR the circuit in question. CONNECT all modules.

D9 CHECK FOR RESTORED COMMUNICATION WITH THE IPC (INSTRUMENT PANEL CLUSTER) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: IPC C220.

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test V

No	CONNECT the module. GO to D10

D10 CHECK FOR RESTORED COMMUNICATION WITH THE APIM (SYNC MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 15 (15A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test J

No	INSTALL the removed fuse. GO to D11

D11 CHECK FOR RESTORED COMMUNICATION WITH THE ACM (AUDIO FRONT CONTROL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 32 (20A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test I

No	INSTALL the removed fuse. GO to D12

D12 VERIFY VEHICLE EQUIPMENT - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE)

Inspect the vehicle for a DSP .

Is the vehicle equipped with a DSP ?

Yes

GO to D13

GO to D14

D13 CHECK FOR RESTORED COMMUNICATION WITH THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuses 5 (20A) and 28 (20A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL removed fuses. GO to Pinpoint Test P

No	INSTALL removed fuses. GO to D14

D14 CHECK FOR RESTORED COMMUNICATION WITH THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 31 (10A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL removed fuse. GO to Pinpoint Test Q

No	INSTALL removed fuse. GO to D15

D15 VERIFY VEHICLE EQUIPMENT - WACM (WIRELESS ACCESSORY CHARGING MODULE)

Inspect the vehicle for a WACM .

Is the vehicle equipped with a WACM ?

Yes

GO to D16

No	The HS-CAN3 tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

D16 CHECK FOR RESTORED COMMUNICATION WITH THE WACM (WIRELESS ACCESSORY CHARGING MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 2 (7.5A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL removed fuse. GO to Pinpoint Test AQ

No	INSTALL removed fuse. The HS-CAN3 tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

D17 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connector. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D18 CHECK THE APIM (SYNC MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the APIM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new APIM .
REFER to: SYNC Module [APIM] (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D19 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D20 CHECK THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIMB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB .
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D21 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the IPC connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPC connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC .
REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D22 CHECK THE GWM (GATEWAY MODULE A) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

D23 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the WACM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the WACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E: NO HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

Diagnostic messages sent/received between the diagnostic scan tool and the HS-CAN4 modules are accessed through the DIAG2 circuits on the remote DLC . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connectors
Remote DLC
GWM
RFA module
TCU

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

E1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC C2122.

Inspect the remote DLC pins 3, 4, 5, 11 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with the remote DLC pins 3, 4, 5, 11 and 16?

Yes

GO to E2

E2 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) ( TCU (TELEMATIC CONTROL UNIT MODULE) ) TERMINATION RESISTANCE

Disconnect negative battery cable.

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 C4931A-23

Is the resistance between 108 and 132 ohms?

Yes

GO to E3

No	If the resistance is greater than 132 ohms, GO to E6 If the resistance is less than 108 ohms, GO to E7

E3 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (+) AND HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (-) CIRCUITS FOR A SHORT TO GROUND

Connect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 Ground

C4931A-23 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to E4

GO to E8

E4 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (+) AND HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 Ground

C4931A-23 Ground

Are the voltages greater than 6 volts?

Yes

REPAIR the circuit in question.

GO to E5

E5 CHECK THE GWM (GATEWAY MODULE A) HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 (Component Side) C4931A-23 (Component Side)

Is the resistance between 108 and 132 ohms?

Yes

GO to E11

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

E6 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) CIRCUITS BETWEEN THE TCU (TELEMATIC CONTROL UNIT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect TCU C4803A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4803A-10 C4931A-10

C4803A-20 C4931A-23

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to E9

No	REPAIR the circuit in question.

E7 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (+) AND HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 C4931A-23

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- RFA module C3860
- TCU C4803A

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

CONNECT all disconnected connectors.
For the RFA module, GO to E12
For the TCU , GO to E13

No	REPAIR the circuits in question. CONNECT all modules.

E8 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (+) AND HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 Ground

C4931A-23 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- RFA module C3860
- TCU C4803A

Are the resistances greater than 1,000 ohms?

Yes

CONNECT the GWM .
For the RFA module, GO to E12
For the TCU , GO to E13

No	REPAIR the circuit in question. CONNECT all modules.

E9 CHECK FOR RESTORED COMMUNICATION WITH THE TCU (TELEMATIC CONTROL UNIT MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 8 (5A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN4 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AN

No	INSTALL the removed fuse. GO to E10

E10 CHECK FOR RESTORED COMMUNICATION WITH THE RFA (REMOTE FUNCTION ACTUATOR) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 19 (5A).

Using a diagnostic scan tool, carry out the network test.

Do all other HS-CAN4 modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AE

No	INSTALL the removed fuse. The HS-CAN4 tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

E11 CHECK THE GWM (GATEWAY MODULE A) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

E12 CHECK THE RFA (REMOTE FUNCTION ACTUATOR) MODULE FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RFA module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RFA .
REFER to: Remote Function Actuator (RFA) Module (419-01C Passive Anti-Theft System (PATS) - Vehicles With: Phone as a Key, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

E13 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the TCU connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the TCU connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F: NO MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) COMMUNICATION, ALL MODULES ARE NOT RESPONDING

NOTE: Failure to disconnect the battery when instructed will result in false resistance readings.

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The MS-CAN modules communicate with the diagnostic scan tool through the DIAG2 network. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals or connectors
Remote DLC
DDM
DSM
GWM
HSWM (if equipped)
HVAC module
PDM
RGTM
RTM
SCMB (if equipped)
SCMG (if equipped)
SCMH (if equipped)
SODL (if equipped)
SODR (if equipped)
TRM (if equipped)

NOTE: Various modules set network DTCs during this test procedure. Clear DTCs from all modules after completing the diagnostic procedure.

F1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC .

Inspect the remote DLC pins 3, 4, 5, 11 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with the remote DLC pins 3, 4, 5, 11 and 16?

Yes

GO to F2

F2 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) ( HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE) TERMINATION RESISTANCE

Disconnect negative battery cable.

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 C4931A-16

Is the resistance between 108 and 132 ohms?

Yes

GO to F3

No	If the resistance is greater than 132 ohms, GO to F6 If the resistance is less than 108 ohms, GO to F7

F3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND

Connect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 Ground

C4931A-16 Ground

Are the resistances greater than 1,000 ohms?

Yes

GO to F4

GO to F8

F4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 Ground

C4931A-16 Ground

Are the voltages greater than 6 volts?

Yes

REPAIR the circuit in question.

GO to F5

F5 CHECK THE GWM (GATEWAY MODULE A) MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 (Component Side) C4931A-16 (Component Side)

Is the resistance between 108 ohms and 132 ohms?

Yes

GO to F29

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

F6 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: HVAC module C228A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-20 C4931A-3

C228A-21 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to F9

No	REPAIR the circuit in question.

F7 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TOGETHER WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 C4931A-16

Disconnect modules one at a time until the resistance is greater than 3 ohms.
- DDM C501A
- DSM C341F
- HSWM C2406 (if equipped)
- HVAC module C228A
- PDM C652A
- RGTM C4174B
- RTM C9026
- SCMB C3696F (if equipped)
- SCMG C3385 (if equipped)
- SCMH C3386 (if equipped)
- SODL C4369 (if equipped)
- SODR C4370 (if equipped)
- TRM C425B (if equipped)

Did the resistance change to greater than 3 ohms with one of the modules disconnected?

Yes

CONNECT all disconnected connectors.
For the DDM , GO to F27
For the DSM , GO to F28
For the HSWM , GO to F30
For the HVAC module, GO to F31
For the PDM , GO to F32
For the RGTM , GO to F33
For the RTM , GO to F34
For the SCMB , GO to F35
For the SCMG , GO to F36
For the SCMH , GO to F37
For the SODL , GO to F38
For the SODR , GO to F39
For the TRM , GO to F40

No	REPAIR the circuits in question. CONNECT all modules.

F8 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (+) AND MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) (-) CIRCUITS FOR A SHORT TO GROUND WITH THE MODULES DISCONNECTED

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 Ground

C4931A-16 Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.
- DDM C501A
- DSM C341F
- HSWM C2406 (if equipped)
- HVAC module C228A
- PDM C652A
- RGTM C4174B
- RTM C9026
- SCMB C3696F (if equipped)
- SCMG C3385 (if equipped)
- SCMH C3386 (if equipped)
- SODL C4369 (if equipped)
- SODR C4370 (if equipped)
- TRM C425B (if equipped)

Are the resistances greater than 1,000 ohms?

Yes

CONNECT the GWM .
For the DDM , GO to F27
For the DSM , GO to F28
For the HSWM , GO to F30
For the HVAC module, GO to F31
For the PDM , GO to F32
For the RGTM , GO to F33
For the RTM , GO to F34
For the SCMB , GO to F35
For the SCMG , GO to F36
For the SCMH , GO to F37
For the SODL , GO to F38
For the SODR , GO to F39
For the TRM , GO to F40

No	REPAIR the circuit in question. CONNECT all modules.

F9 CHECK FOR RESTORED COMMUNICATION WITH THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: HVAC module C228A.

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test U

No	CONNECT the module. GO to F10

F10 CHECK FOR RESTORED COMMUNICATION WITH THE RTM (RADIO TRANSCEIVER MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 31 (10A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AG

No	INSTALL the removed fuse. GO to F11

F11 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE PDM (PASSENGER DOOR MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 26 (30A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AB

No	INSTALL the removed fuse. GO to F12

F12 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE DDM (DRIVER DOOR MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 23 (30A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test N

No	INSTALL the removed fuse. GO to F13

F13 VERIFY VEHICLE EQUIPMENT - SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) AND SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE)

Inspect the vehicle for a SCMG and SCMH .

Is the vehicle equipped with a SCMG and SCMH ?

Yes

GO to F14

GO to F16

F14 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) AND SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 53 (10A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to F15

No	INSTALL the removed fuse. GO to F16

F15 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: SCMG C3385.

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test AJ

No	CONNECT the module. GO to Pinpoint Test AK

F16 VERIFY VEHICLE EQUIPMENT - SCMB (PASSENGER FRONT SEAT MODULE)

Inspect the vehicle for a SCMB .

Is the vehicle equipped with a SCMB ?

Yes

GO to F17

GO to F18

F17 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SCMB (PASSENGER FRONT SEAT MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 70 (30A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AI

No	INSTALL the removed fuse. GO to F18

F18 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE DSM (DRIVER FRONT SEAT MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuses 74 (30A) and 77 (30A).

Using a diagnostic scan tool, carry out the network test.

Do all other MS-CAN modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test O

No	INSTALL the removed fuses. GO to F19

F19 VERIFY VEHICLE EQUIPMENT - HSWM (HEATED STEERING WHEEL MODULE)

Inspect the vehicle for a HSWM .

Is the vehicle equipped with a HSWM ?

Yes

GO to F20

GO to F21

F20 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE HSWM (HEATED STEERING WHEEL MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 37 (20A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test T

No	INSTALL the removed fuse. GO to F21

F21 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE RGTM (REAR GATE TRUNK MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 76 (30A) and BCM fuse 10 (5A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuses. GO to Pinpoint Test AF

No	INSTALL the removed fuses. GO to F22

F22 VERIFY VEHICLE EQUIPMENT - TRM (TRAILER MODULE)

Inspect the vehicle for a TRM .

Is the vehicle equipped with a TRM ?

Yes

GO to F23

GO to F24

F23 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE TRM (TRAILER MODULE) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BJB fuse 78 (40A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuse. GO to Pinpoint Test AO

No	INSTALL the removed fuse. GO to F24

F24 VERIFY VEHICLE EQUIPMENT - SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH)

Inspect the vehicle for a SODL and SODR .

Is the vehicle equipped with a SODL and SODR ?

Yes

GO to F25

No	The MS-CAN tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

F25 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 23 (15A).

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

INSTALL the removed fuse. GO to F26

No	INSTALL the removed fuse. The MS-CAN tests within specification. The concern may have been caused by module connections. CONNECT any disconnected connectors or fuses. Test for normal operation. If the concern is still present, ADDRESS the root cause of any connector or pin issues.

F26 CHECK FOR RESTORED NETWORK COMMUNICATION WITH THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: SODR C4370.

Using a diagnostic scan tool, carry out the network test.

Do all other modules pass the network test?

Yes

CONNECT the module. GO to Pinpoint Test AM

No	CONNECT the module. GO to Pinpoint Test AL

F27 CHECK THE DDM (DRIVER DOOR MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the DDM connectors

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F28 CHECK THE DSM (DRIVER FRONT SEAT MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the DSM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DSM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSM .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F29 CHECK THE GWM (GATEWAY MODULE A) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F30 CHECK THE HSWM (HEATED STEERING WHEEL MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the HSWM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HSWM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HSWM .
REFER to: Heated Steering Wheel Module (HSWM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F31 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the HVAC module connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F32 CHECK THE PDM (PASSENGER DOOR MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the PDM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F33 CHECK THE RGTM (REAR GATE TRUNK MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the RGTM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RGTM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RGTM .
REFER to: Rear Gate Trunk Module (RGTM) (501-03 Body Closures, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F34 CHECK THE RTM (RADIO TRANSCEIVER MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the RTM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RTM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RTM .
REFER to: Radio Transceiver Module (RTM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F35 CHECK THE SCMB (PASSENGER FRONT SEAT MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the SCMB connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMB .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F36 CHECK THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the SCMG connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMG connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMG .
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F37 CHECK THE SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the SCMH connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMH connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMH .
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F38 CHECK THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the SODL connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SODL connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODL .
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F39 CHECK THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect the SODR connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SODR connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODR .
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

F40 CHECK THE TRM (TRAILER MODULE) FOR CORRECT OPERATION

Ignition OFF.

Disconnect and inspect all the TRM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the TRM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TRM .
REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: ALL NETWORKS DO NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The GWM communicates with the diagnostic scan tool through the DIAG1 and DIAG2 networks. The GWM operates as a gateway for communication between the modules on HS-CAN1 , HS-CAN2 , HS-CAN3 , HS-CAN4 and MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
GWM
Remote DLC

Visual Inspection and Pre-checks

Verify BCM fuse 12 (7.5A) is OK.

G1 CHECK THE REMOTE DLC (DATA LINK CONNECTOR) PINS FOR DAMAGE

Ignition OFF.

Disconnect the diagnostic scan tool cable from the remote DLC .

Inspect the remote DLC pins 3, 4, 5, 6, 11, 14 and 16 for spreading or damage using a flex probe with the dimensions: 1.5mm width x .080mm thickness, Rotunda probe 300-08039 (violet).

Are any pin fit concerns or damage observed with remote DLC pins 3, 4, 5, 6, 11, 14 and 16?

Yes

GO to G2

G2 CHECK THE GWM (GATEWAY MODULE A) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: GWM C4931A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-13 Ground

Is the voltage greater than 11 volts?

Yes

GO to G3

No	VERIFY BCM fuse 12 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

G3 CHECK THE GWM (GATEWAY MODULE A) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-14 Ground

Is the resistance less than 3 ohms?

Yes

GO to G4

No	REPAIR the circuit.

G4 CHECK THE DIAG1 AND DIAG2 NETWORK CIRCUITS FOR A SHORT TOGETHER

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C4931A-5		C4931A-6
C4931A-5		C4931A-19
C4931A-18		C4931A-6
C4931A-18		C4931A-19

Are the resistances greater than 1,000 ohms?

Yes

GO to G5

No	REPAIR the circuits.

G5 CHECK THE GWM (GATEWAY MODULE A) DIAG1 TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-5 (Component Side) C4931A-18 (Component Side)

Is the resistance between 108 and 132 ohms?

Yes

GO to G6

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

G6 CHECK THE GWM (GATEWAY MODULE A) DIAG2 TERMINATION RESISTOR (COMPONENT SIDE)

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-6 (Component Side) C4931A-19 (Component Side)

Is the resistance between 108 and 132 ohms?

Yes

Replace the remote DLC . If the concern is still present, GO to G7

No	INSTALL a new GWM . REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

G7 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: THE ABS (ANTI-LOCK BRAKE SYSTEM) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 42 for schematic and connector information.

Normal Operation and Fault Conditions

The ABS module communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connectors
ABS module

Visual Inspection and Pre-checks

Verify BJB fuses 25 (10A), 69 (30A) and 87 (60A) are OK.

H1 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: ABS module C135.

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C135-1		Ground
C135-30		Ground
C135-35		Ground

Are the voltages greater than 11 volts?

Yes

GO to H2

No	VERIFY BJB fuses 25 (10A), 69 (30A) and 87 (60A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

H2 CHECK THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C135-14 Ground

Is the resistance less than 3 ohms?

Yes

GO to H3

No	REPAIR the circuit.

H3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE ABS (ANTI-LOCK BRAKE SYSTEM) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C135-42 C4931A-8

C135-43 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to H4

No	REPAIR the circuit in question.

H4 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the ABS module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the ABS module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern,
REFER to: Anti-Lock Brake System (ABS) and Stability Control (206-09 Anti-Lock Brake System (ABS) and Stability Control, Diagnosis and Testing).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST I: THE ACM (AUDIO FRONT CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 130 for schematic and connector information. Refer to Wiring Diagrams Cell 131 for schematic and connector information. Refer to Wiring Diagrams Cell 132 for schematic and connector information.

Normal Operation and Fault Conditions

The ACM communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
ACM

Visual Inspection and Pre-checks

Verify BCM fuse 32 (20A) is OK.

I1 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: ACM C240A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to I2

No	VERIFY BCM fuse 32 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

I2 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-13 Ground

Is the resistance less than 3 ohms?

Yes

GO to I3

No	REPAIR the circuit.

I3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE ACM (AUDIO FRONT CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C240A-14 C4931A-9

C240A-15 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to I4

No	REPAIR the circuit in question.

I4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the ACM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the ACM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J: THE APIM (SYNC MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Normal Operation and Fault Conditions

The APIM communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
APIM

Visual Inspection and Pre-checks

Verify BCM fuse 15 (15A) is OK.

J1 CHECK THE APIM (SYNC MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: APIM C2383A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to J2

No	VERIFY BCM fuse 15 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

J2 CHECK THE APIM (SYNC MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-37 Ground

Is the resistance less than 3 ohms?

Yes

GO to J3

No	REPAIR the circuit.

J3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE APIM (SYNC MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2383A-19 C4931A-9

C2383A-20 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to J4

No	REPAIR the circuit in question.

J4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the APIM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the APIM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new APIM .
REFER to: SYNC Module [APIM] (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST K: THE AWD (ALL-WHEEL DRIVE) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 34 for schematic and connector information.

Normal Operation and Fault Conditions

The AWD module communicates on the HS-CAN1 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
AWD module

Visual Inspection and Pre-checks

Verify BJB fuse 12 (15A), AJB fuse 1 (40A) and High Current BJB fuse 4 (60A) are OK.

K1 CHECK THE AWD (ALL-WHEEL DRIVE) MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect AWD module C3841 .

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3841-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to K2

No	VERIFY BJB fuse 12 (15A), AJB fuse 1 (40A) and High Current BJB fuse 4 (60A) are OK. If OK, repair the circuit in question. If not OK, REFER to the Wiring Diagrams Manual to identify the possible causes of the circuit short.

K2 CHECK THE AWD (ALL-WHEEL DRIVE) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3841-46 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT negative battery cable. GO to K3

No	REPAIR the circuit.

K3 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) CIRCUITS BETWEEN THE AWD (ALL-WHEEL DRIVE) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3841-9 C4931A-7

C3841-8 C4931A-20

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to K4

No	REPAIR the circuit in question.

K4 CHECK FOR CORRECT AWD (ALL-WHEEL DRIVE) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the AWD module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the AWD module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new AWD module.
REFER to: All-Wheel Drive (AWD) Module (307-07A Four-Wheel Drive Systems, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST L: THE BCM (BODY CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 13 for schematic and connector information. Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The BCM communicates on the HS-CAN1 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
BCM

Visual Inspection and Pre-checks

Verify High Current BJB fuse 2 (125A) is OK.

L1 CHECK THE BCM (BODY CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: BCM C2280A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280A-1 Ground

Is the voltage greater than 11 volts?

Yes

Connect BCM C2280A. GO to L2

No	VERIFY High Current BJB fuse 2 (125A) is OK. If OK, repair the circuit. If not OK, REFER to the Wiring Diagrams Manual to identify the possible causes of the circuit short.

L2 CHECK THE BCM (BODY CONTROL MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: BCM C2280F.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C2280F-6		Ground
C2280F-7		Ground
C2280F-10		Ground

Are the resistances less than 3 ohms?

Yes

GO to L3

No	REPAIR the circuit in question.

L3 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) CIRCUITS BETWEEN THE BCM (BODY CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: BCM C2280B.

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-10 C4931A-7

C2280B-9 C4931A-20

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to L4

No	REPAIR the circuit in question.

L4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

Disconnect and inspect all the BCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST M: THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 40 for schematic and connector information.

Normal Operation and Fault Conditions

The DCDC (VQM) communicates on the HS-CAN1 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
DCDC (VQM)

Visual Inspection and Pre-checks

Verify High Current BJB fuse 3 (50A) and BJB fuse 23 (15A) are OK.

M1 CHECK THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: DCDC (VQM) C2513.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2513-7 Ground

C2513-8 Ground

Are the voltages greater than 11 volts?

Yes

GO to M2

No	VERIFY High Current BJB fuse 3 (50A) and BJB fuse 23 (15A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

M2 CHECK THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2513-6 Ground

Is the resistance less than 3 ohms?

Yes

GO to M3

No	REPAIR the circuit.

M3 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) CIRCUITS BETWEEN THE DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2513-1 C4931A-7

C2513-4 C4931A-20

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to M4

No	REPAIR the circuit in question.

M4 CHECK FOR CORRECT DCDC (DIRECT CURRENT/DIRECT CURRENT CONVERTER CONTROL MODULE) (VQM) OPERATION

Ignition OFF.

Disconnect and inspect the DCDC (VQM) connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DCDC (VQM) connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new DCDC (VQM).
REFER to: Direct Current/Direct Current (DC/DC) Converter Control Module (414-05 Voltage Converter/Inverter, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST N: THE DDM (DRIVER DOOR MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 123 for schematic and connector information.

Normal Operation and Fault Conditions

The DDM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
DDM

Visual Inspection and Pre-checks

Verify BCM fuse 23 (30A) is OK.

N1 CHECK THE DDM (DRIVER DOOR MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: DDM C501A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C501A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to N2

No	VERIFY BCM fuse 23 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

N2 CHECK THE DDM (DRIVER DOOR MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C501A-2 Ground

Is the resistance less than 3 ohms?

Yes

GO to N3

No	REPAIR the circuit.

N3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE DDM (DRIVER DOOR MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C501A-7 C4931A-3

C501A-6 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to N4

No	REPAIR the circuit in question.

N4 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DDM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DDM .
REFER to: Driver Door Module (DDM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST O: THE DSM (DRIVER FRONT SEAT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 119 for schematic and connector information.

Normal Operation and Fault Conditions

The DSM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
DSM

Visual Inspection and Pre-checks

Verify BJB fuses 74 (30A) and 77 (30A) are OK.

O1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: DSM C341B.

Ignition ON.

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341B-2		Ground
C341B-3		Ground
C341B-5		Ground
C341B-6		Ground

Are the voltages greater than 11 volts?

Yes

GO to O2

No	VERIFY BJB fuses 74 (30A) and 77 (30A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

O2 CHECK THE DSM (DRIVER FRONT SEAT MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect DSM C341C .

Measure:
Click to display connectors

Positive Lead	Measurement / Action	Negative Lead
C341C-3		Ground
C341C-4		Ground
C341C-5		Ground
C341C-6		Ground

Is the resistance less than 3 ohms?

Yes

GO to O3

No	REPAIR the circuit in question.

O3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE DSM (DRIVER FRONT SEAT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect DSM C341F .

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C341F-8 C4931A-3

C341F-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to O4

No	REPAIR the circuit in question.

O4 CHECK FOR CORRECT DSM (DRIVER FRONT SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DSM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSM .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST P: THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The DSP communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
DSP

Visual Inspection and Pre-checks

Verify BCM fuses 5 (20A) and 28 (20A) are OK.

P1 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: DSP C4326C (mid-level) or C4452D (high-level).

Ignition ON.

Measure:
Click to display connectors
Mid-Level

Positive Lead Measurement / Action Negative Lead

C4326C-4 Ground

C4326C-8 Ground

Click to display connectors
High-Level

Positive Lead Measurement / Action Negative Lead

C4452D-6 Ground

C4452D-12 Ground

Are the voltages greater than 11 volts?

Yes

GO to P2

No	VERIFY BCM fuses 5 (20A) and 28 (20A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

P2 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors
Mid-Level

Positive Lead Measurement / Action Negative Lead

C4326C-1 Ground

C4326C-5 Ground

Click to display connectors
High-Level

Positive Lead Measurement / Action Negative Lead

C4452D-3 Ground

C4452D-9 Ground

Are the resistances less than 3 ohms?

Yes

GO to P3

No	REPAIR the circuit in question.

P3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors
Mid-Level

Positive Lead Measurement / Action Negative Lead

C4326C-2 C4931A-9

C4326C-3 C4931A-22

Click to display connectors
High-Level

Positive Lead Measurement / Action Negative Lead

C4452D-4 C4931A-9

C4452D-5 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to P4

No	REPAIR the circuit in question.

P4 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the DSP connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DSP connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q: THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The FCIMB communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
FCIMB

Visual Inspection and Pre-checks

Verify BCM fuse 31 (10A) is OK.

Q1 CHECK THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: FCIMB C3042.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3042-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to Q2

No	VERIFY BCM fuse 31 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

Q2 CHECK THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3042-10 Ground

Is the resistance less than 3 ohms?

Yes

GO to Q3

No	REPAIR the circuit.

Q3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE FCIMB (FRONT CONTROLS INTERFACE MODULE B) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3042-2 C4931A-9

C3042-3 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to Q4

No	REPAIR the circuit in question.

Q4 CHECK FOR CORRECT FCIMB (FRONT CONTROLS INTERFACE MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect the FCIMB connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the FCIMB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIMB .
REFER to: Front Controls Interface Module B (FCIMB) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST R: THE GSM (GEAR SHIFT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 37 for schematic and connector information.

Normal Operation and Fault Conditions

The GSM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
GSM

Visual Inspection and Pre-checks

Verify BCM fuses 7 (10A) and 20 (5A) are OK.

R1 CHECK THE GSM (GEAR SHIFT MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: GSM C3532.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3532-1 Ground

C3532-10 Ground

Are the voltages greater than 11 volts?

Yes

GO to R2

No	VERIFY BCM fuses 7 (10A) and 20 (5A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

R2 CHECK THE GSM (GEAR SHIFT MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3532-9 Ground

C3532-18 Ground

Are the resistances less than 3 ohms?

Yes

GO to R3

No	REPAIR the circuit in question.

R3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE GSM (GEAR SHIFT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3532-3 C4931A-8

C3532-2 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to R4

No	REPAIR the circuit in question.

R4 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the GSM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the GSM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GSM .
REFER to: Gear Shift Module (GSM) (307-05A Automatic Transmission External Controls - 8-Speed Automatic Transmission – 8F57, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST S: THE HCM (HEADLAMP CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 85 for schematic and connector information.

Normal Operation and Fault Conditions

The HCM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
HCM

Visual Inspection and Pre-checks

Verify BCM fuse 17 (7.5A) is OK.

S1 CHECK THE HCM (HEADLAMP CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: HCM C2129.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2129-24 Ground

Is the voltage greater than 11 volts?

Yes

GO to S2

No	VERIFY BCM fuse 17 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

S2 CHECK THE HCM (HEADLAMP CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2129-4 Ground

Is the resistance less than 3 ohms?

Yes

GO to S3

No	REPAIR the circuit.

S3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE HCM (HEADLAMP CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2129-19 C4931A-8

C2129-7 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to S4

No	REPAIR the circuit in question.

S4 CHECK FOR CORRECT HCM (HEADLAMP CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the HCM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HCM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST T: THE HSWM (HEATED STEERING WHEEL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 128 for schematic and connector information.

Normal Operation and Fault Conditions

The HSWM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
HSWM

Visual Inspection and Pre-checks

Verify BCM fuse 37 (20A) is OK.

T1 CHECK THE HSWM (HEATED STEERING WHEEL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: HSWM C2406.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2406-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to T2

No	VERIFY BCM fuse 37 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

T2 CHECK THE HSWM (HEATED STEERING WHEEL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2406-14 Ground

Is the resistance less than 3 ohms?

Yes

GO to T3

No	REPAIR the circuit.

T3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE HSWM (HEATED STEERING WHEEL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2406-4 C4931A-3

C2406-3 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to T4

No	REPAIR the circuit in question.

T4 CHECK FOR CORRECT HSWM (HEATED STEERING WHEEL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the HSWM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HSWM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new HSWM .
REFER to: Heated Steering Wheel Module (HSWM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U: THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 54 for schematic and connector information. Refer to Wiring Diagrams Cell 55 for schematic and connector information.

Normal Operation and Fault Conditions

The HVAC module communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
HVAC module

Visual Inspection and Pre-checks

Verify BCM fuse 12 (7.5A) is OK.

U1 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the remote DLC .

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-3 C4931A-16

Is the resistance between 108 and 132 ohms?

Yes

GO to U3

GO to U2

U2 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: HVAC module C228A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-20 C4931A-3

C228A-21 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to U5

No	REPAIR the circuit in question.

U3 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-32 Ground

Is the voltage greater than 11 volts?

Yes

GO to U4

No	VERIFY BCM fuse 12 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

U4 CHECK THE HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C228A-1 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to U5

No	REPAIR the circuit.

U5 CHECK FOR CORRECT HVAC (HEATING, VENTILATION AND AIR CONDITIONING) MODULE OPERATION

Ignition OFF.

Disconnect and inspect all the HVAC module connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the HVAC module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new HVAC module.
REFER to: Heating, Ventilation and Air Conditioning (HVAC) Control Module (412-00 Climate Control System - General Information, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST V: THE IPC (INSTRUMENT PANEL CLUSTER) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 60 for schematic and connector information.

Normal Operation and Fault Conditions

The IPC communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
IPC

Visual Inspection and Pre-checks

Verify BCM fuse 13 (7.5A) is OK.

V1 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the remote DLC .

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-9 C4931A-22

Is the resistance between 108 and 132 ohms?

Yes

GO to V3

GO to V2

V2 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE IPC (INSTRUMENT PANEL CLUSTER) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: IPC C220.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220-12 C4931A-9

C220-13 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to V5

No	REPAIR the circuit in question.

V3 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Disconnect: IPC C220.

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220-8 Ground

Is the voltage greater than 11 volts?

Yes

GO to V4

No	VERIFY BCM fuse 13 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

V4 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C220-3 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to V5

No	REPAIR the circuit.

V5 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION

Ignition OFF.

Disconnect and inspect the IPC connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPC connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST W: THE IPMA (IMAGE PROCESSING MODULE A) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 31 for schematic and connector information.

Normal Operation and Fault Conditions

The IPMA communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
IPMA

Visual Inspection and Pre-checks

Verify BCM fuse 37 (20A) is OK.

W1 CHECK THE IPMA (IMAGE PROCESSING MODULE A) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: IPMA C9224.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9224-4 Ground

Is the voltage greater than 11 volts?

Yes

GO to W2

No	VERIFY BCM fuse 37 (20A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

W2 CHECK THE IPMA (IMAGE PROCESSING MODULE A) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9224-5 Ground

Is the resistance less than 3 ohms?

Yes

GO to W3

No	REPAIR the circuit.

W3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE IPMA (IMAGE PROCESSING MODULE A) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9224-10 C4931A-8

C9224-9 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to W4

No	REPAIR the circuit in question.

W4 CHECK FOR CORRECT IPMA (IMAGE PROCESSING MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the IPMA connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMA connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new IPMA .
REFER to: Image Processing Module A (IPMA) (419-07 Lane Keeping System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST X: THE IPMB (IMAGE PROCESSING MODULE B) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

The IPMB communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
IPMB

Visual Inspection and Pre-checks

Verify BJB fuse 23 (15A) is OK.

X1 VERIFY VEHICLE EQUIPMENT

Verify the vehicle is equipped with auto stop-start.

Is the vehicle equipped with auto stop-start?

Yes

GO to X2

GO to X3

X2 CHECK NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out a network test.

Does the DCDC pass the network test?

Yes

GO to X3

No	GO to Pinpoint Test M

X3 CHECK THE IPMB (IMAGE PROCESSING MODULE B) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: IPMB C3676A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3676A-10 Ground

Is the voltage greater than 11 volts?

Yes

GO to X4

No	VERIFY BJB fuse 23 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

X4 CHECK THE IPMB (IMAGE PROCESSING MODULE B) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3676A-6 Ground

Is the resistance less than 3 ohms?

Yes

GO to X5

No	REPAIR the circuit.

X5 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE IPMB (IMAGE PROCESSING MODULE B) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3676A-9 C4931A-8

C3676A-8 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to X6

No	REPAIR the circuit in question.

X6 CHECK FOR CORRECT IPMB (IMAGE PROCESSING MODULE B) OPERATION

Ignition OFF.

Disconnect and inspect all the IPMB connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the IPMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new IPMB .
REFER to: Image Processing Module B (IPMB) (413-13B Parking Aid - Vehicles With: Parking Aid Camera, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y: THE OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 46 for schematic and connector information.

Normal Operation and Fault Conditions

The OCS module communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Wiring, terminals and connector
BCM
OCS module

Y1 CHECK FOR BCM (BODY CONTROL MODULE) NETWORK CONNECTION

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?

Yes

GO to Y2

No	DIAGNOSE a module communication concern. GO to Pinpoint Test L

Y2 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out a BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

DIAGNOSE the Diagnostic Trouble Codes (DTCs).
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to Y3

Y3 CHECK THE OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Wait one minute.

Disconnect: OCS module C3043.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3043-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to Y4

No	REPAIR the circuit.

Y4 CHECK THE OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3043-4 Ground

Is the resistance less than 3 ohms?

Yes

GO to Y5

No	REPAIR the circuit.

Y5 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3043-2 C4931A-8

C3043-3 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to Y6

No	REPAIR the circuit in question.

Y6 CHECK FOR CORRECT OCS (OCCUPANT CLASSIFICATION SYSTEM) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the OCS module connector and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the OCS module connector and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new OCS module.
REFER to: Occupant Classification System (OCS) Sensor (501-20B Supplemental Restraint System, Removal and Installation).
If equipped with multi-contour seats, REFER to: Occupant Classification System (OCS) Sensor - Vehicles With: Multi-Contour Seats (501-20B Supplemental Restraint System, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Z: THE PAM (PARKING ASSIST CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 145 for schematic and connector information.

Normal Operation and Fault Conditions

The PAM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
PAM

Visual Inspection and Pre-checks

Verify BCM fuse 37 (20A) is OK.

Z1 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: PAM C3237A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3237A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to Z2

No	VERIFY BCM fuse 37 (20A) is OK. If OK, repair the circuit. If not OK, REFER to the Wiring Diagrams Manual to identify the possible causes of the circuit short.

Z2 CHECK THE PAM (PARKING ASSIST CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3237A-20 Ground

Is the resistance less than 3 ohms?

Yes

GO to Z3

No	REPAIR the circuit.

Z3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE PAM (PARKING ASSIST CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3237A-9 C4931A-8

C3237A-8 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to Z4

No	REPAIR the circuit in question.

Z4 CHECK FOR CORRECT PAM (PARKING ASSIST CONTROL MODULE) OPERATION

Disconnect and inspect all the PAM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PAM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PAM .
REFER to: Parking Assist Control Module (PAM) (413-13A Parking Aid - Vehicles With: Rear Parking Aid, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AA: THE PCM (POWERTRAIN CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 23 for schematic and connector information. Refer to Wiring Diagrams Cell 24 for schematic and connector information.

Normal Operation and Fault Conditions

The PCM communicates on the HS-CAN1 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connectors
PCM

AA1 VERIFY WHETHER OTHER HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) MODULES PASS THE NETWORK TEST

Using a diagnostic scan tool, carry out the network test.

Is the text "pass" or a DTC listed next to any of the following modules (if equipped): AWD module, BCM , DCDC (VQM), PAM or PCM ?

Yes

If "pass" or a DTC was listed next to the PCM , a network fault is not currently present.
If "pass" or a DTC was listed next to one or more modules other than the PCM , GO to AA2

No	No modules are currently communicating on the HS-CAN1 . GO to Pinpoint Test B

AA2 SECTION 303-14 PINPOINT TEST QA VERIFICATION CHECK

Verify section 303-14 pinpoint test QA has been carried out.

Has section 303-14 pinpoint test QA been carried out?

Yes

GO to AA3

Refer to section 303-14 Electronic Engine Control D&T pinpoint test QA: UNABLE TO ACTIVATE SELF-TEST/NETWORK COMMUNICATION ERROR. If equipped with 2.0L EcoBoost,
REFER to: Electronic Engine Controls (303-14B Electronic Engine Controls - 2.0L EcoBoost (184kW/250PS) – MI4, Diagnosis and Testing).
If equipped with 2.7L EcoBoost, REFER to: Electronic Engine Controls (303-14C Electronic Engine Controls - 2.7L EcoBoost (238kW/324PS), Diagnosis and Testing).

AA3 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the remote DLC .

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-7 C4931A-20

Is the resistance between 108 and 132 ohms?

Yes

CONNECT all disconnected connectors. GO to AA5

GO to AA4

AA4 CHECK THE HS-CAN1 (HIGH-SPEED CONTROLLER AREA NETWORK 1) CIRCUITS BETWEEN THE PCM (POWERTRAIN CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect PCM C1381B (2.0L GTDI) or C1551B (2.7L GTDI).

Measure:
Click to display connectors
2.0L GTDI

Positive Lead Measurement / Action Negative Lead

C1381B-67 C4931A-7

C1381B-66 C4931A-20

Click to display connectors
2.7L GTDI

Positive Lead Measurement / Action Negative Lead

C1551B-27 C4931A-7

C1551B-12 C4931A-20

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AA5

No	REPAIR the circuit in question.

AA5 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new PCM . For 2.0L,
REFER to: Powertrain Control Module (PCM) (303-14B Electronic Engine Controls - 2.0L EcoBoost (184kW/250PS) – MI4, Removal and Installation).
For 2.7L, REFER to: Powertrain Control Module (PCM) (303-14C Electronic Engine Controls - 2.7L EcoBoost (238kW/324PS), Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AB: THE PDM (PASSENGER DOOR MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions

The PDM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
PDM

Visual Inspection and Pre-checks

Verify BCM fuse 26 (30A) is OK.

AB1 CHECK THE PDM (PASSENGER DOOR MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: PDM C652A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C652A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to AB2

No	VERIFY BCM fuse 26 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AB2 CHECK THE PDM (PASSENGER DOOR MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C652A-2 Ground

Is the resistance less than 3 ohms?

Yes

GO to AB3

No	REPAIR the circuit.

AB3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE PDM (PASSENGER DOOR MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C652A-7 C4931A-3

C652A-6 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AB4

No	REPAIR the circuit in question.

AB4 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PDM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new PDM .
REFER to: Passenger Door Module (PDM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC: THE PSCM (POWER STEERING CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 43 for schematic and connector information.

Normal Operation and Fault Conditions

The PSCM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
PSCM

Visual Inspection and Pre-checks

Verify High Current BJB fuse 8 (80A) and BJB fuse 19 (10A) are OK.

AC1 CHECK THE PSCM (POWER STEERING CONTROL MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: PSCM C1463A and C1463B.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1463A-1 Ground

Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1463B-2 Ground

Are the voltages greater than 11 volts?

Yes

GO to AC2

No	VERIFY High Current BJB fuse 8 (80A) and BJB fuse 19 (10A) are OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AC2 CHECK THE PSCM (POWER STEERING CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1463B-1 Ground

Is the resistance less than 3 ohms?

Yes

GO to AC3

No	REPAIR the circuit.

AC3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE PSCM (POWER STEERING CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1463A-2 C4931A-8

C1463A-3 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AC4

No	REPAIR the circuit in question.

AC4 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the PSCM connectors and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the PSCM connectors and related in-line connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD: THE RCM (RESTRAINTS CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 46 for schematic and connector information.

Normal Operation and Fault Conditions

The RCM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Wiring, terminals and connectors
BCM
RCM

WARNING: Never probe the electrical connectors on airbag, Safety Canopy® or side air curtain assemblies. Failure to follow this instruction may result in the accidental deployment of these assemblies, which increases the risk of serious personal injury or death.

WARNING: Never disassemble or tamper with seat belt deployable components, including pretensioners, load limiters and inflators. Never back probe deployable device electrical connectors. Tampering or back probing may cause an accidental deployment and result in personal injury or death.

NOTE: The Supplemental Restraint System (SRS) must be fully operational and free of faults before releasing the vehicle to the customer.

AD1 CHECK THE RCM (RESTRAINTS CONTROL MODULE) CONNECTION

Ignition OFF.

Depower the SRS .
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).

Disconnect: RCM C310A and C310B.

Are RCM C310A pin 19 and C310B pins 47 and 48 OK?

Yes

GO to AD2

No	INSTALL a new wiring harness. REPOWER the SRS . REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).

AD2 CHECK FOR BCM (BODY CONTROL MODULE) NETWORK CONNECTION

Ignition ON.

Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?

Yes

GO to AD3

No	DIAGNOSE a module communication concern. GO to Pinpoint Test L

AD3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out a BCM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes

DIAGNOSE the Diagnostic Trouble Codes (DTCs).
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

GO to AD4

AD4 CHECK THE RCM (RESTRAINTS CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Repower the SRS .
REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C310A-19 Ground

Is the voltage greater than 11 volts?

Yes

GO to AD5

No	REPAIR the circuit.

AD5 CHECK THE RCM (RESTRAINTS CONTROL MODULE) CASE GROUND

Ignition OFF.

Measure the resistance between the RCM case and a good chassis ground.

Is the resistance less than 3 ohms?

Yes

GO to AD6

No	REPAIR the RCM case ground as necessary.

AD6 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE RCM (RESTRAINTS CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Depower the SRS .
REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C310B-48 C4931A-8

C310B-47 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AD7

No	REPAIR the circuit in question.

AD7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the RCM connectors and related in-line connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RCM connectors and related in-line connectors. Make sure they seat and latch correctly.

Repower the Supplemental Restraint System (SRS).
REFER to: Supplemental Restraint System (SRS) Repowering (501-20B Supplemental Restraint System, General Procedures).

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE: THE RFA (REMOTE FUNCTION ACTUATOR) MODULE DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

The RFA module communicates on the HS-CAN4 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
RFA module

Visual Inspection and Pre-checks

Verify BCM fuse 19 (5A) is OK.

AE1 CHECK THE RFA (REMOTE FUNCTION ACTUATOR) MODULE VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: RFA module C3860.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3860-24 Ground

Is the voltage greater than 11 volts?

Yes

GO to AE2

No	VERIFY BCM fuse 19 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AE2 CHECK THE RFA (REMOTE FUNCTION ACTUATOR) MODULE GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3860-6 Ground

Is the resistance less than 3 ohms?

Yes

GO to AE3

No	REPAIR the circuit.

AE3 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) CIRCUITS BETWEEN THE RFA (REMOTE FUNCTION ACTUATOR) MODULE AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3860-16 C4931A-10

C3860-17 C4931A-23

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AE4

No	REPAIR the circuit in question.

AE4 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RFA module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF: THE RGTM (REAR GATE TRUNK MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 109 for schematic and connector information.

Normal Operation and Fault Conditions

The RGTM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
RGTM

Visual Inspection and Pre-checks

Verify BJB fuse 76 (30A) and BCM fuse 10 (5A) are OK.

AF1 CHECK THE RGTM (REAR GATE TRUNK MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: RGTM C4174B.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174B-2 Ground

C4174B-6 Ground

Are the voltages greater than 11 volts?

Yes

GO to AF2

No	VERIFY BJB fuse 76 (30A) and BCM fuse 10 (5A) are OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AF2 CHECK THE RGTM (REAR GATE TRUNK MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174B-14 Ground

Is the resistance less than 3 ohms?

Yes

GO to AF3

No	REPAIR the circuit.

AF3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE RGTM (REAR GATE TRUNK MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4174B-4 C4931A-3

C4174B-3 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AF4

No	REPAIR the circuit in question.

AF4 CHECK FOR CORRECT RGTM (REAR GATE TRUNK MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the RGTM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RGTM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RGTM .
REFER to: Rear Gate Trunk Module (RGTM) (501-03 Body Closures, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AG: THE RTM (RADIO TRANSCEIVER MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 118 for schematic and connector information.

Normal Operation and Fault Conditions

The RTM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
RTM

Visual Inspection and Pre-checks

Verify BCM fuse 31 (10A) is OK.

AG1 CHECK THE RTM (RADIO TRANSCEIVER MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: RTM C9026.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9026-6 Ground

Is the voltage greater than 11 volts?

Yes

GO to AG2

No	VERIFY BCM fuse 31 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AG2 CHECK THE RTM (RADIO TRANSCEIVER MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9026-1 Ground

Is the resistance less than 3 ohms?

Yes

GO to AG3

No	REPAIR the circuit.

AG3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE RTM (RADIO TRANSCEIVER MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C9026-4 C4931A-3

C9026-3 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AG4

No	REPAIR the circuit in question.

AG4 CHECK FOR CORRECT RTM (RADIO TRANSCEIVER MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the RTM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the RTM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RTM .
REFER to: Radio Transceiver Module (RTM) (419-10 Multifunction Electronic Modules, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AH: THE SCCM (STEERING COLUMN CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 31 for schematic and connector information.

Normal Operation and Fault Conditions

The SCCM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SCCM

Visual Inspection and Pre-checks

Verify BCM fuse 13 (7.5A) is OK.

AH1 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the remote DLC .

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-8 C4931A-21

Is the resistance between 108 and 132 ohms?

Yes

GO to AH3

GO to AH2

AH2 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE SCCM (STEERING COLUMN CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: SCCM C226A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C226A-3 C4931A-8

C226A-4 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AH5

No	REPAIR the circuit in question.

AH3 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C226A-7 Ground

Is the voltage greater than 11 volts?

Yes

GO to AH4

No	VERIFY BCM fuse 13 (7.5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AH4 CHECK THE SCCM (STEERING COLUMN CONTROL MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C226A-5 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AH5

No	REPAIR the circuit.

AH5 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the SCCM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCCM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW service article instructions. If no service articles address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AI: THE SCMB (PASSENGER FRONT SEAT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 120 for schematic and connector information.

Normal Operation and Fault Conditions

The SCMB communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SCMB

Visual Inspection and Pre-checks

Verify BJB fuse 70 (30A) is OK.

AI1 CHECK THE SCMB (PASSENGER FRONT SEAT MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: SCMB C3696B.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3696B-3 Ground

C3696B-6 Ground

Are the voltages greater than 11 volts?

Yes

GO to AI2

No	VERIFY BJB fuse 70 (30A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AI2 CHECK THE SCMB (PASSENGER FRONT SEAT MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect SCMB C3696C .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3696C-3 Ground

C3696C-6 Ground

Are the resistances less than 3 ohms?

Yes

GO to AI3

No	REPAIR the circuit in question.

AI3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE SCMB (PASSENGER FRONT SEAT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Disconnect SCMB C3696F .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3696F-8 C4931A-3

C3696F-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AI4

No	REPAIR the circuit in question.

AI4 CHECK FOR CORRECT SCMB (PASSENGER FRONT SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the SCMB connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMB connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMB .
REFER to: Driver Front Seat Module (DSM) (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AJ: THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 123 for schematic and connector information.

Normal Operation and Fault Conditions

The SCMG communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SCMG

Visual Inspection and Pre-checks

Verify BJB fuse 53 (10A) is OK.

AJ1 CHECK THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: SCMG C3385.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3385-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to AJ3

No	VERIFY BJB fuse 53 (10A) is OK. If OK, GO to AJ2 If not OK, REPAIR the circuit.

AJ2 CHECK THE MULTI-CONTOUR SEAT RELAY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BJB C1035B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1035B-18 C3385-1

Is the resistance less than 3 ohms?

Yes

GO to AJ6

No	REPAIR the circuit.

AJ3 CHECK THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3385-16 Ground

Is the resistance less than 3 ohms?

Yes

GO to AJ4

No	REPAIR the circuit.

AJ4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3385-8 C4931A-3

C3385-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AJ5

No	REPAIR the circuit in question.

AJ5 CHECK FOR CORRECT SCMG (DRIVER MULTI-CONTOUR SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMG connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMG connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMG .
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AJ6 CHECK OPERATION OF THE INTERIOR LIGHTING

Check operation of the interior lamps (dome lamp, courtesy lamps, luggage compartment lamp, etc).

Are the interior lamps operating normally?

Yes

GO to AJ7

No	DIAGNOSE the demand LP/battery saver relay. REFER to: Interior Lighting (417-02 Interior Lighting, Diagnosis and Testing).

AJ7 CHECK THE MULTI-CONTOUR SEAT RELAY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BCM C2280B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-16 C1035B-30

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AJ8

No	REPAIR the circuit.

AJ8 CHECK FOR CORRECT BJB (BATTERY JUNCTION BOX) OPERATION

Ignition OFF.

Disconnect and inspect the BJB connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BJB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AK: THE SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 120 for schematic and connector information.

Normal Operation and Fault Conditions

The SCMH communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SCMH

Visual Inspection and Pre-checks

Verify BJB fuse 53 (10A) is OK.

AK1 CHECK THE SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: SCMH C3386.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3386-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to AK3

No	VERIFY BJB fuse 53 (10A) is OK. If OK, GO to AK2 If not OK, REPAIR the circuit.

AK2 CHECK THE MULTI-CONTOUR SEAT RELAY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BJB C1035B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C1035B-18 C3386-1

Is the resistance less than 3 ohms?

Yes

GO to AK6

No	REPAIR the circuit.

AK3 CHECK THE SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3386-16 Ground

Is the resistance less than 3 ohms?

Yes

GO to AK4

No	REPAIR the circuit.

AK4 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3386-8 C4931A-3

C3386-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AK5

No	REPAIR the circuit in question.

AK5 CHECK FOR CORRECT SCMH (PASSENGER MULTI-CONTOUR SEAT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the SCMH connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SCMH connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMH .
REFER to: Driver Multi-Contour Seat Module [SCMG] (501-10A Front Seats, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AK6 CHECK OPERATION OF THE INTERIOR LIGHTING

Check operation of the interior lamps (dome lamp, courtesy lamps, luggage compartment lamp, etc).

Are the interior lamps operating normally?

Yes

GO to AK7

No	DIAGNOSE the demand LP/battery saver relay. REFER to: Interior Lighting (417-02 Interior Lighting, Diagnosis and Testing).

AK7 CHECK THE MULTI-CONTOUR SEAT RELAY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BCM C2280B .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C2280B-16 C1035B-30

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AK8

No	REPAIR the circuit.

AK8 CHECK FOR CORRECT BJB (BATTERY JUNCTION BOX) OPERATION

Ignition OFF.

Disconnect and inspect the BJB connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BJB connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AL: THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 146 for schematic and connector information.

Normal Operation and Fault Conditions

The SODL communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SODL

Visual Inspection and Pre-checks

Verify BJB fuse 23 (15A) is OK.

AL1 VERIFY VEHICLE EQUIPMENT

Verify the vehicle is equipped with auto stop-start.

Is the vehicle equipped with auto stop-start?

Yes

GO to AL2

GO to AL3

AL2 CHECK NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Did the DCDC pass the network test?

Yes

GO to AL3

No	GO to Pinpoint Test M

AL3 CHECK THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: SODL C4369.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4369-5 Ground

Is the voltage greater than 11 volts?

Yes

GO to AL4

No	VERIFY BJB fuse 23 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AL4 CHECK THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4369-8 Ground

Is the resistance less than 3 ohms?

Yes

GO to AL5

No	REPAIR the circuit.

AL5 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4369-6 C4931A-3

C4369-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AL6

No	REPAIR the circuit in question.

AL6 CHECK FOR CORRECT SODL (SIDE OBSTACLE DETECTION CONTROL MODULE LH) OPERATION

Ignition OFF.

Disconnect and inspect the SODL connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SODL connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODL .
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AM: THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 146 for schematic and connector information.

Normal Operation and Fault Conditions

The SODR communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
SODR

Visual Inspection and Pre-checks

Verify BJB fuse 23 (15A) is OK.

AM1 CHECK THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: SODR C4370.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4370-5 Ground

Is the voltage greater than 11 volts?

Yes

GO to AM2

No	VERIFY BJB fuse 23 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AM2 CHECK THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4370-3 Ground

C4370-8 Ground

Are the resistances less than 3 ohms?

Yes

GO to AM3

No	REPAIR the circuit.

AM3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4370-6 C4931A-3

C4370-7 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AM4

No	REPAIR the circuit in question.

AM4 CHECK FOR CORRECT SODR (SIDE OBSTACLE DETECTION CONTROL MODULE RH) OPERATION

Ignition OFF.

Disconnect and inspect the SODR connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the SODR connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SODR .
REFER to: Side Obstacle Detection Control Module (SODCM) (419-04 Side and Rear Vision, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AN: THE TCU (TELEMATIC CONTROL UNIT MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 130 for schematic and connector information.

Normal Operation and Fault Conditions

The TCU communicates on the HS-CAN4 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
TCU

Visual Inspection and Pre-checks

Verify BCM fuse 8 (5A) is OK.

AN1 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) TERMINATION RESISTANCE

Ignition OFF.

Disconnect negative battery cable.

Disconnect the diagnostic scan tool cable from the remote DLC .

Disconnect: GWM C4931A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-10 C4931A-23

Is the resistance between 108 and 132 ohms?

Yes

GO to AN3

GO to AN2

AN2 CHECK THE HS-CAN4 (HIGH-SPEED CONTROLLER AREA NETWORK 4) CIRCUITS BETWEEN THE TCU (TELEMATIC CONTROL UNIT MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect: TCU C4803A.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4803A-10 C4931A-10

C4803A-20 C4931A-23

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AN5

No	REPAIR the circuit in question.

AN3 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: TCU C4803A.

Connect negative battery cable.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4803A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to AN4

No	VERIFY BCM fuse 8 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AN4 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect negative battery cable.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4803A-9 Ground

Is the resistance less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AN5

No	REPAIR the circuit.

AN5 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the TCU connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the TCU connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AO: THE TRM (TRAILER MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 95 for schematic and connector information.

Normal Operation and Fault Conditions

The TRM communicates on the MS-CAN . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
TRM

Visual Inspection and Pre-checks

Verify BJB fuse 78 (40A) is OK.

AO1 CHECK THE TRM (TRAILER MODULE) VOLTAGE SUPPLY CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: TRM C425A.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C425A-1 Ground

Is the voltage greater than 11 volts?

Yes

GO to AO2

No	VERIFY BJB fuse 78 (40A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AO2 CHECK THE TRM (TRAILER MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect: TRM C425B.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C425B-1 Ground

Is the resistance less than 3 ohms?

Yes

GO to AO3

No	REPAIR the circuit.

AO3 CHECK THE MS-CAN (MEDIUM SPEED-CONTROLLER AREA NETWORK) CIRCUITS BETWEEN THE TRM (TRAILER MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C425B-3 C4931A-3

C425B-2 C4931A-16

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AO4

No	REPAIR the circuit in question.

AO4 CHECK FOR CORRECT TRM (TRAILER MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the TRM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the TRM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TRM .
REFER to: Trailer Module (TRM) (417-01 Exterior Lighting, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AP: THE VDM (VEHICLE DYNAMICS CONTROL MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 41 for schematic and connector information.

Normal Operation and Fault Conditions

The VDM communicates on the HS-CAN2 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
VDM

Visual Inspection and Pre-checks

Verify BCM fuse 36 (15A) is OK.

AP1 CHECK THE VDM (VEHICLE DYNAMICS CONTROL MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: VDM C4396D.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4396D-1 Ground

C4396D-2 Ground

Are the voltages greater than 11 volts?

Yes

GO to AP2

No	VERIFY BCM fuse 36 (15A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AP2 CHECK THE VDM (VEHICLE DYNAMICS CONTROL MODULE) GROUND CIRCUITS FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4396D-11 Ground

C4396D-12 Ground

Are the resistances less than 3 ohms?

Yes

GO to AP3

No	REPAIR the circuit in question.

AP3 CHECK THE HS-CAN2 (HIGH-SPEED CONTROLLER AREA NETWORK 2) CIRCUITS BETWEEN THE VDM (VEHICLE DYNAMICS CONTROL MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4396D-3 C4931A-8

C4396D-13 C4931A-21

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AP4

No	REPAIR the circuit in question.

AP4 CHECK FOR CORRECT VDM (VEHICLE DYNAMICS CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all the VDM connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the VDM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new VDM .
REFER to: Vehicle Dynamics Control Module (VDM) (204-05 Vehicle Dynamic Suspension, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AQ: THE WACM (WIRELESS ACCESSORY CHARGING MODULE) DOES NOT RESPOND TO THE DIAGNOSTIC SCAN TOOL

Refer to Wiring Diagrams Cell 14 for schematic and connector information. Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

The WACM communicates on the HS-CAN3 . REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

Possible Sources

Fuse
Wiring, terminals and connector
WACM

Visual Inspection and Pre-checks

Verify BCM fuse 2 (7.5A) is OK.

AQ1 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect: WACM C3853.

Ignition ON.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3853-1 Ground

C3853-3 Ground

Are the voltages greater than 11 volts?

Yes

GO to AQ2

No	VERIFY BCM fuse 2 (7.5A) is OK. If OK, REPAIR the circuit in question. If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

AQ2 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3853-5 Ground

Is the resistance less than 3 ohms?

Yes

GO to AQ3

No	REPAIR the circuit.

AQ3 CHECK THE HS-CAN3 (HIGH-SPEED CONTROLLER AREA NETWORK 3) CIRCUITS BETWEEN THE WACM (WIRELESS ACCESSORY CHARGING MODULE) AND THE GWM (GATEWAY MODULE A) FOR AN OPEN

Disconnect GWM C4931A .

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C3853-8 C4931A-9

C3853-7 C4931A-22

Are the resistances less than 3 ohms?

Yes

CONNECT all disconnected connectors. GO to AQ4

No	REPAIR the circuit in question.

AQ4 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION

Ignition OFF.

Disconnect and inspect the WACM connector.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the WACM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AR: U0001:09

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U0001:09	High Speed CAN Communication Bus: Component Failures	Sets in continuous memory when the GWM could not communicate on a network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .

Possible Sources

Intermittent fault with the HS-CAN .
GWM

AR1 RETRIEVE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this Diagnostic Trouble Code (DTC).

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the GWM .

Wait at least 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is the DTC still present?

Yes

REFER to the appropriate HS-CAN does not communicate.

No	The system is operating correctly at this time.

PINPOINT TEST AS: U0214:00

Normal Operation and Fault Conditions

The GWM communicates with the RFA module over the HS-CAN4 . If messages are missing or not received from the RFA module, the phone as a key feature may not operate correctly. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U0214:00	Lost Communication With Remote Function Actuation Module: No Sub Type Information	Sets in continuous memory when the GWM detects network messages are missing from the RFA module for more than 5 seconds.

Possible Sources

Network communication concern
GWM concern
RFA module

AS1 VERIFY THE CONCERN

Ignition ON.

Verify an observable symptom present.

Is an observable symptom present?

Yes

GO to AS2

No	CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS2 CHECK THE NETWORK COMMUNICATION

Using a diagnostic scan tool, carry out the network test.

Does the RFA module pass the network test?

Yes

GO to AS3

No	GO to Pinpoint Test AE

AS3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the self-test for the module in question (GWM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.

GO to AS4

AS4 CHECK FOR NON-NETWORK RFA (REMOTE FUNCTION ACTUATOR) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the RFA module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?

Yes

REFER to the Diagnosis and Testing within the Phone As a Key section of the Workshop Manual.

GO to AS5

AS5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0214:00

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (GWM ) setting the DTC .

Ignition OFF.

Ignition ON.

Wait 10 seconds.

Using a diagnostic scan tool, carry out the self-test for the module in question setting the DTC .

Is DTC U0214:00 still present?

Yes

GO to AS6

No	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AS6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

Check the vehicle service history for recent service actions related to the RFA module and the module in question ( GWM ) setting the DTC . If recent service history is found:
- verify correct replacement module was installed
  - vehicle parts build list may be used to verify correct part fitment
- verify the configuration of replacement module was correct
  - re-configure module using as-built data if prior configuration is suspect
- verify the module was not obtained from a like vehicle and installed into vehicle with concern
  - return the swapped module to source vehicle and obtain new replacement module

Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?

Yes

GO to AS7

No	The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AS7 CHECK FOR CORRECT RFA (REMOTE FUNCTION ACTUATOR) MODULE OPERATION

Ignition OFF.

Disconnect and inspect the RFA module connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the RFA module connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AT: U1A01:00

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U1A01:00	Communication Link: No Sub Type Information	Sets in continuous memory and during the on-demand self-test when GWM communication cannot be established.

Possible Sources

AT1 RETRIEVE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the GWM .

Wait at least 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is the DTC still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time.

PINPOINT TEST AU: U2100:00 OR U2200:00

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U2100:00	Initial Configuration Not Complete: No Sub Type Information	Sets in continuous memory and during the on-demand self-test due to incomplete or incorrect PMI procedures.
GWM U2200:00	Control Module Configuration Memory Corrupt: No Sub Type Information	Sets in continuous memory when GWM corruption is identified.

Possible Sources

Incomplete or incorrect PMI procedures.
GWM

AU1 RETRIEVE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Check vehicle service history for recent service actions related to the GWM .

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is DTC U2100:00 or U2200:00 recorded?

Yes

GO to AU2

No	The system is operating correctly at this time. The DTC may have been falsely set by the GWM causing the signal to momentarily stop and set the DTC .

AU2 INSTALL GWM (GATEWAY MODULE A) PMI (PROGRAMMABLE MODULE INSTALLATION)

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Carry out GWM PMI .

Using a diagnostic scan tool, carry out the GWM self-test.

Is DTC U2100:00 or U2200:00 recorded?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time.

PINPOINT TEST AV: U3000:04, U3000:43 OR U3000:49

Normal Operation and Fault Conditions

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U3000:04	Control Module: System Internal Failures	Sets in continuous memory when a GWM system failure is detected.
GWM U3000:43	Control Module: Special Memory Failure	Sets in continuous memory when a GWM failure is detected in the special memory.
GWM U3000:49	Control Module: Internal Electronic Failure	Sets in continuous memory when a GWM internal failure is detected.

Possible Sources

AV1 RETRIEVE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).

Wait 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is DTC U3000:04, U3000:43 or U3000:49 recorded?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time.

PINPOINT TEST AW: U3000:57

Normal Operation and Fault Conditions

This DTC indicates a programming update has occurred and should be disregarded as no fault is present. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U3000:57	Control Module: Invalid/Incompatible Software Component	Sets when the GWM detects a software update.

Possible Sources

Software updated

Diagnostic steps are not provided for this symptom or DTC. REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

PINPOINT TEST AX: U3003:16

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The GWM monitors the supplied voltage and sets a DTC if it falls below a threshold. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U3003:16	Battery Voltage: Circuit Voltage Below Threshold	Sets in continuous memory and during the on-demand self-test when the GWM detects the supply voltage below 10 volts.

Possible Sources

Previous low battery voltage
Wiring, terminals, or connectors
Charging system concern
GWM

AX1 RECHECK FOR LOW VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)

Ignition ON.

Using a diagnostic scan tool, clear the low voltage DTC .

Wait 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is DTC U3003:16 still present?

Yes

GO to AX2

No	The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

AX2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)

Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

Are any voltage-related Diagnostic Trouble Codes (DTCs) present?

Yes

DIAGNOSE the charging system concern. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to AX3

AX3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

Ignition OFF.

Check the battery condition and verify the battery is fully charged.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?

Yes

GO to AX4

No	DIAGNOSE the battery. REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

AX4 COMPARE THE GWM (GATEWAY MODULE A) VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE

Ignition ON.

Measure and record the battery voltage.

Using a diagnostic scan tool, monitor the GWM voltage supply PID :
- GWM :
  Access the GWM and monitor the VPWR (V) PID

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

GO to AX7

GO to AX5

AX5 CHECK THE GWM (GATEWAY MODULE A) VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE

Ignition OFF.

Disconnect GWM C4931A .

Ignition ON.

Measure and record the battery voltage.

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-13 Ground

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

GO to AX6

No	REPAIR the circuit for high resistance.

AX6 CHECK THE GWM (GATEWAY MODULE A) GROUND CIRCUIT FOR HIGH RESISTANCE

Measure:
Click to display connectors

Positive Lead Measurement / Action Negative Lead

C4931A-13 C4931A-14

Is the voltage reading within 0.2 volt of the recorded battery voltage?

Yes

GO to AX7

No	REPAIR the circuit for high resistance.

AX7 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect all the GWM connectors.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AY: U3003:17

Refer to Wiring Diagrams Cell 14 for schematic and connector information.

Normal Operation and Fault Conditions

The GWM monitors the supplied voltage and sets a DTC if it rises above a threshold. REFER to: Controller Area Network (CAN) Module Communications Network - System Operation and Component Description (418-00A Controller Area Network (CAN) Module Communications Network, Description and Operation).

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GWM U3003:17	Battery Voltage: Circuit Voltage Above Threshold	Sets in continuous memory and during the on-demand self-test when the GWM detects the supply voltage is greater than 16 volts.

Possible Sources

Charging system concern
GWM

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

AY1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES

Ignition ON.

Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related Diagnostic Trouble Codes (DTCs) present in multiple modules?

Yes

DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to AY2

AY2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING

Turn off all interior/exterior lights and accessories.

Start and run the engine at approximately 2,000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?

Yes

DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.

GO to AY3

AY3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)

Ignition OFF.

Ignition ON.

Using a diagnostic scan tool, clear the GWM DTC .

Wait 10 seconds.

Using a diagnostic scan tool, carry out the GWM self-test.

Is DTC U3003:17 still present?

Yes

GO to AY4

No	The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

AY4 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION

Ignition OFF.

Disconnect and inspect the GWM connector.

Repair:
- corrosion (install new connectors or terminals - clean module pins)
- damaged or bent pins - install new terminals pins
- pushed-out pins - install new pins as necessary

Reconnect the GWM connector. Make sure it seats and latches correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

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Categories

Traction Control