P0523 Subaru Engine Oil Pressure Sensor/Switch Circuit High Voltage

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

What about the obd code?

The P0523 Subaru 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 Subaru Description

The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.