Diagnostic Test
WARNING: This page is about a different variant/trim than selected.
- 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
- Refer to STANDARD PROCEDURE and perform the INTERMITTENT CONDITION diagnostic procedure.
- U1040-LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM) ALSO ACTIVE
- With the scan tool, select View DTCs.
Is the U1040-LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM) also set?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the U1040-00-Lost Communication with Body Control Module (BCM) diagnostic procedure.
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Refer to STANDARD PROCEDURE and perform the POWERTRAIN VERIFICATION TEST.
- With the scan tool, select View DTCs.