Diagnostic Test
- 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.
- Ignition on, engine not running.
- With a scan tool, select View PCM DTCs.
Is the status Active for this DTC?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) ALSO ACTIVE
- With the scan tool, select View DTCs.
Is the U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) also set?
Yes
- Perform the U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.
- With the scan tool, select View DTCs.