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Home >> Jeep >> 2022 >> Gladiator Mojave, Part Time T/Case Control, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L (GPEC 2A) - DTCS P1400 To P152F >> DTC Troubleshooting >> P1400-Aftermarket Calibration Detected/Warranty Coverage Confirmation Required >> Possible Causes

Possible Causes

POSSIBLE CAUSES
PCM HAS BEEN PROGRAMMED WITH UNAUTHORIZED OR AFTERMARKET SOFTWARE
AN AUTHORIZED MOPAR POWERTRAIN CONTROL MODULE (PCM) HAS BEEN INSTALLED

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

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