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Home >> Jeep >> 2021 >> Grand Cherokee Trackhawk >> Repair and Diagnosis >> Engine Performance >> System >> 6.2L - DTCS P0153 To P0441 >> DTC Troubleshooting >> P018D-Fuel Pressure Sensor Circuit High >> Possible Causes

Possible Causes

Possible Causes
FUEL RAIL PRESSURE SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
FUEL RAIL PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE
FUEL RAIL PRESSURE SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
SENSOR GROUND OPEN/HIGH RESISTANCE
FUEL RAIL PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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