Powertrain

U0001-CAN C BUS





For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

- Set Condition:

The PCM loses communication over the CAN C Bus circuit. The circuit is continuously monitored. One trip fault.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Refer to communications for diagnostic procedures and for further possible causes.

Diagnostic Test

1. ACTIVE DTC

Ignition on, engine not running.

With a scan tool, View FCM DTCs.

Is the DTC Active at this time?

Yes

- Refer to communications for diagnostic procedures and for further possible causes.

No

- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Intermittent Condition
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test