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Home >> Jeep >> 2015 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0501 To P1128 >> DTC Troubleshooting >> P0521-Engine Oil Pressure Sensor Performance >> Possible Causes

Possible Causes

Possible Causes
ENGINE OIL/ENGINE MECHANICAL
EXCESSIVE RESISTANCE IN THE ENGINE OIL PRESSURE SENSOR SIGNAL CIRCUIT
EXCESSIVE RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT
EXCESSIVE RESISTANCE IN THE SENSOR RETURN CIRCUIT
ENGINE OIL PRESSURE SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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