P0521 OBD-II

P0521

Technical Definition:

Engine Oil Pressure Sensor / Switch Range / Performance

Trouble Code: P0521
Address: 0x0521
System: Powertrain
Subsystem: Vehicle Speed Control, Idle Controls, and Auxiliary Inputs
Technical Description:

Possible Causes:

Possible Symptoms:

Engine Oil Pressure Sensor/Switch Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Low oil level or motor mechanical fault
– Faulty oil pressure sensor
– Oil Pressure Sensor harness is open or shorted
– Oil Pressure Sensor circuit poor electrical connection

Specific Makes:

– Oil pressure warning light ON.