FixVault

Home › Jeep › 2007 › Commander Overland, 4WD › 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 Pre-Diagnostic Troubleshooting procedure before proceeding. See 45RFE/545RFE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .