Diagnostic Test

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TCM - INTERNAL ERROR

If there are no possible causes remaining, view repair.

Repair

Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN.
Perform C635 DDCT VERIFICATION TEST. Refer to STANDARD PROCEDURE .