Possible causes

– 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

When is the code detected?

The P0523 is detected when the signal sent from oil pressure sensor to PCM goes above specifications.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Oil pressure warning light ON

P0523 Description

The Engine Control Module (ECM) continuously monitors the engine oil pressure. The Engine Oil Pressure (EOP) Sensor/Switch sends a voltage signal to the ECM when the engine is running. The ECM monitor the signal circuit of the EOP sensor to determine the engine sensor voltage is within the normal operation range.

P0523 Information for specific makes

P0523 DODGE
P0523 HONDA
P0523 JEEP
P0523 CHEVROLET
P0523 BUICK
P0523 GMC
P0523 CADILLAC
P0523 PONTIAC
P0523 SATURN