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Home >> Jeep >> 2024 >> Gladiator Nighthawk, Part Time T/Case Control, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L (GPEC 5) - DTCS P2B57 To U0109 >> DTC Troubleshooting >> U0109 Lost Communication With Fuel Pump Control Module >> Default Action
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Default Action

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to:  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

The table below shows the FPCM DTCs and the correlating INTENDED failure modes. NOTE: On some vehicles the faults may not always set as expected which may lead to a misdiagnosis (Refer to the know issue information). Therefore, it is usually best to perform the "Complete Fuel Pump Control Module System Testing (Not DTC Specific)" in the diagnostic information.