U0002–CAN C BUS OFF PERFORMANCE

For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the ignition on.

  • Set Condition:

    The Totally Integrated Power Module (TIPM) detects a corrupt CAN C Bus message.


Possible Causes
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND
  
(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE
  
(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE
  
(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT
  
ANTILOCK BRAKE MODULE
  
POWERTRAIN CONTROL MODULE
  
ENGINE CONTROL MODULE (DIESEL ONLY)
  
TRANSMISSION CONTROL MODULE
  
STEERING ANGLE SENSOR
  
AUTOMATIC SWAY BAR SYSTEM MODULE
  
WIRELESS CONTROL MODULE
  
OCCUPANT RESTRAINT CONTROLLER MODULE
  
OCCUPANT CLASSIFICATION MODULE
  
TOTALLY INTEGRATED POWER MODULE
  



Diagnostic Test

1.TEST FOR INTERMITTENT CONDITION







Does the scan tool display U0002–CAN C BUS OFF PERFORMANCE as active?

Yes
  • Go To 2


No
  • The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

2.ANTILOCK BRAKE MODULE — INTERNAL SHORT









Does the scan tool display U0001-CAN C BUS OFF PERFORMANCE as active?

Yes
  • Go To 3


No
  • Inspect the wiring and connectors for damage or shorted circuits in accordance with the service information. If ok, replace and program the Anti—Lock Brake Module in accordance with the service information.
  • Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE)

3.POWERTRAIN CONTROL MODULE — INTERNAL SHORT









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 4


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Powertrain Control Module in accordance with the service information.
  • Perform (NGC) POWERTRAIN VERIFICATION TEST VER - 5.

4.ENGINE CONTROL MODULE (DIESEL ONLY) — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 5


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Engine Control Module in accordance with the service information.
  • Perform the ECM VERIFICATION TEST.

5.TRANSMISSION CONTROL MODULE — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 6


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace and program the Transmission Control Module in accordance with the service information.
  • Perform the TCM VERIFICATION TEST.

6.STEERING ANGLE SENSOR — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 7


No
  • Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Steering Angle Sensor in accordance with the service information.
  • Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE)

7.AUTOMATIC SWAY BAR SYSTEM MODULE — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 8


No

8.WIRELESS CONTROL MODULE — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes
  • Go To 9


No

9.OCCUPANT RESTRAINT CONTROLLER MODULE — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes


No

10.OCCUPANT CLASSIFICATION MODULE — INTERNAL SHORT


NOTE: If vehicle is not equipped with this module, answer yes to the question.









Does the scan tool display U0001–CAN C BUS CIRCUIT as active?

Yes


No

11.(D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE








Is there any voltage present?

Yes


No

12.(D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE





Is there any voltage present?

Yes


No

13.(D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND






Is any resistance present?

Yes


No

14.(D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND





Is any resistance present?

Yes


No

15.(D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT





Is any resistance present?

Yes


No