U0001–CAN C BUS





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the ignition on.

  • Set Condition:

    Whenever the CAN C Bus (+) or CAN C Bus (-) circuit is open, shorted to voltage or shorted to ground.


Possible Causes
  
CAN C BUS DTC's IN FRONT CONTROL MODULE
  
(D65) CAN C BUS (+) CIRCUIT OPEN
  
(D64) CAN C BUS (-) CIRCUIT OPEN
  
STEERING COLUMN MODULE
  



Diagnostic Test

1.CHECK FOR ACTIVE DTCS





Does the scan tool display this DTC as active?

Yes
  • Go To 2


No
  • If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

2.CHECK FRONT CONTROL MODULE DTC's



Does the scan tool display any CAN C BUS DTC's – ACTIVE?

Yes


No
  • Go To 3

3.(D65) CAN C BUS (+) CIRCUIT OPEN









Is the resistance below 2.0 ohms?

Yes
  • Go To 4


No
  • Repair the (D65) CAN C Bus (+) circuit for an open.

4.(D64) CAN C BUS (–) CIRCUIT OPEN





Is the resistance below 2.0 ohms?

Yes
  • Replace the Steering Column Module in accordance with the service information.


No
  • Repair the (D64) CAN C Bus (–) circuit for an open.