Powertrain Control Module (PCM)

U0002-CAN C BUS OFF PERFORMANCE

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on, the battery voltage between 9 and 16 volts and engine run time greater than three seconds.

- Set Condition:
The Powertrain Control Module (PCM) doesn't receive any CAN C bus messages for a specific amount of time.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
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.

1. Turn the ignition on.
2. With a scan tool, read the active DTCs.

Does the scan tool display U0002-CAN C BUS OFF PERFORMANCE?

Yes

- Perform the U0001-Can C Bus diagnostic procedure. U0001

No

- Stored Lost Communication DTCs and perform the Stored Lost Communication DTCs diagnostic procedure.