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Home >> Jeep >> 2024 >> Grand Cherokee Altitude X, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (5.7L - DTCS P018B To P0204) >> DTC Troubleshooting >> P018D-Fuel Pressure Sensor Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 Jeep Grand Cherokee L. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FPS SIGNAL CIRCUIT SHORTED TO VOLTAGE
FPS SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
FPS SIGNAL CIRCUIT SHORTED TO THE 5-VOLT SUPPLY CIRCUIT
SENSOR GROUND OPEN/HIGH RESISTANCE
FUEL PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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