P0523

Tests 1 - 3:

Tests 4 - 8:

SYMPTOM
P0523 - OIL PRESSURE VOLTAGE TOO HIGH

WHEN MONITORED
Key ON with battery voltage greater than 10.4 volts.

SET CONDITION
PCM detects input voltage greater than 4.9 volts.

POSSIBLE CAUSES
- Multiple DTCs present
- 5 volt out of range
- Sensor ground circuit open
- Oil pressure sensor
- Oil pressure signal circuit open
- Oil pressure signal circuit shorted to 5 volt supply
- ECM