Engine Oil Pressure Sensor/Switch C Circuit High

Where it lives

For P2D90, the sensor sits on the circuit this code reports. The description of P2D90 reports a fault at the sensor.

Check these first

• An open in the oil pressure sensor C signal wire
• A failed oil pressure sensor C
• An open ground on sensor C
• A loose or corroded sensor C connector

What to do next

1. Inspect the sensor C connector and wiring
2. Check the sensor C signal wire for an open
3. Test the sensor C ground for an open
4. Compare the sensor C reading to a mechanical gauge
5. Replace oil pressure sensor C if it drives high
6. Clear the code and retest

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