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Home › Jeep › 2021 › Compass Altitude, FWD › Repair and Diagnosis (Single Page) › Transmission › Automatic Trans › (F21-250 Gen III Automatic Transmission - Electrical Diagnostics) › DTC Troubleshooting › P0602-00-Control Module Programming Error/Not Programmed › Possible Causes

Possible Causes

Possible Causes
TCM - PROGRAMMING ERROR

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to F21-250 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .