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Home >> Jeep >> 2021 >> Cherokee Altitude, FWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P0602 To P1047 >> DTC Troubleshooting >> P0628-Fuel Pump Control Circuit Low >> Possible Causes

Possible Causes

Possible Causes
FUEL PUMP PWM CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP PWM CONTROL CIRCUIT SHORTED TO THE FUEL PUMP RETURN CIRCUIT
FUEL PUMP ASSEMBLY
FUEL PUMP CONTROL MODULE (FPCM)

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

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