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Home › Jeep › 2008 › Commander Overland, RWD › Repair and Diagnosis › Transmission › Transmission Control Systems › 545RFE Automatic Transmission - Electrical Diagnostics › Automatic Transmission 545RFE - Electrical Diagnostics › DTC Troubleshooting › P0602-Control Module Programming Error/Not Programmed › Possible Causes

Possible Causes

Possible Causes
PCM - PROGRAMMING ERROR

Always perform the 45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.