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Home >> Jeep >> 2023 >> Grand Cherokee 4xe >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P052B To P0629 >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Possible Causes

Possible Causes

Possible Causes
PCM INTERNAL FAILURE

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

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