Powertrain Control Module (PCM)

U0001-CAN C BUS





For a complete wiring diagram, consult the Wiring Information.

- When Monitored:
Ignition run time is greater than one second. Battery voltage between 9 and 16 volts. Engine run time greater than three seconds.

- Set Condition:
The Powertrain Control Module (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. Pre-Diagnostic Troubleshooting Procedure.
ACTIVE DTC
1. Ignition on, engine not running.
2. With the scan tool, select view PCM DTCs.

Is the DTC Active at this time?

Yes

- Perform the U0001-Can C Bus diagnostic procedure. Totally Integrated Power Module (TIPM)

No

- Perform the Stored Lost Communication DTCs diagnostic procedure. Stored Lost Communication DTCs