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Home >> Jeep >> 2022 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0522 To P0602 >> DTC Troubleshooting >> P0602-Control Module Programming Error/Not Programmed >> Possible Causes
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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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