NGC

U0155-LOST COMMUNICATION WITH CLUSTER/CCN





For complete wiring diagrams 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 doesn't receive a Cluster message over the CAN C circuit. The circuit is continuously monitored.






Diagnostic Test

1. ACTIVE DTC

Turn the ignition on.
With a scan tool, read PCM DTCs.

Is the DTC active at this time?

Yes

- Refer to Communications.

No

- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Checking for an Intermittent DTC
- Perform the POWERTRAIN VERIFICATION TEST. PCM Verification Test