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Home › Jeep › 2023 › Grand Cherokee Laredo, AWD › Repair and Diagnosis › Engine Performance › System › 3.6L - DTCS P0562 To P061C › DTC Troubleshooting › P0602 Control Module Programming Error / Not Programmed Control › Possible Causes

Possible Causes

Possible Causes
PCM INTERNAL FAILURE

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