P0523 Oil Pressure Sensor Volts High

SYMPTOM
P-0523 OIL PRESSURE SENSOR HIGH

WHEN MONITORED
With the ignition switch on.

SET CONDITION
The PCM detects voltage on the oil pressure sensor signal circuit above 4.8 volts.

POSSIBLE CAUSES
- No possible causes remaining
- Oil pressure sensor connector & harness intermittent defect
- Oil pressure sensor connector & harness observable defect
- Oil pressure sensor defective
- Oil pressure sensor ground circuit open
- PCM defective
- Sensor signal circuit open
- Sensor signal circuit short to voltage