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Home >> Jeep >> 2021 >> Cherokee Altitude, FWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P0602 To P1047 >> DTC Troubleshooting >> P0629-Fuel Pump Control Circuit High >> Possible Causes

Possible Causes

Possible Causes
FUEL PUMP PWM CONTROL CIRCUIT SHORTED TO VOLTAGE
FUEL PUMP ASSEMBLY
FUEL PRESSURE CONTROL MODULE (FPCM)

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

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