NGC

U0155-LOST COMMUNICATION WITH CLUSTER/CCN

For a complete wiring diagramconsult 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.







Refer to Communications Test for this DTC and/or Manufacturer Code Charts for diagnostic procedures and for further possible causes.


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 Test for this DTC and/or Manufacturer Code Charts for diagnostic procedures and for further possible causes.


No


- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Checking For An Intermittent DTC
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test