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Home >> Jeep >> 2023 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (6.4L - DTCS P060D To P0688) >> DTC Troubleshooting >> P0633-Skim Secret Key Not Stored In Pcm >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
PCM WAS REPLACED AND THE "PCM REPLACED" ROUTINE HAS NOT BEEN RUN
DEFAULT SECRET KEY VALUE WAS RECORDED IN THE WCM/WIN DUE TO DTC BEING ERASED BEFORE THE "WCM/WIN REPLACED" ROUTINE WAS RUN

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

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