NGC

U0001-CAN C BUS





For complete wiring diagrams refer to Diagrams/Electrical.


- When Monitored:

With the ignition on, battery voltage between 9 and 16 volts, and engine run time greater than 3 seconds.

- Set Condition:

The PCM doesn't receive any Can C bus messages for a specific amount of time.






Diagnostic Test

1. ACTIVE DTC

NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

Turn the ignition on.
With a scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Refer to Communications.

No

- Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. Checking for an Intermittent DTC
- Perform the PCM Verification Test. PCM Verification Test