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Home >> Jeep >> 2025 >> Grand Cherokee Overland >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0622 To P063A >> Diagnosis And Testing >> P0627 Fuel Pump Control Circuit Open >> Possible Causes

Possible Causes

Possible Causes
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  3.6L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .