Diagnostic Test
- VERIFY DTC IS ACTIVE 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.
- Turn the ignition on.
- With the scan tool, read active PCM DTCs.
Is this DTC active?
Yes
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
- U0101-LOST COMMUNICATION WITH TCM ALSO SET
- With the scan tool continue reading DTCs.
Is the U0101-LOST COMMUNICATION WITH TCM also set?
Yes
- Perform the U0101-00-Lost Communication with TCM diagnostic procedure. Refer to 2.0L & 2.4L - DIAGNOSTIC CODE INDEX .
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool continue reading DTCs.