The computer sees a fault in the oil pressure sensor circuit. The driver may see the oil warning or a gauge that reads wrongly.
Causes vary by car. Test before you order a part.
Likely causes, most common first
- Faulty oil pressure sensor
- Damaged wiring or connector
- Oil leak at the sensor
- Real low oil pressure
Parts usually involved
- Oil pressure sensor Find at suppliers
- Sensor connector Find at suppliers
- Engine oil Find at suppliers
Test before you replace
Check the oil level and measure actual oil pressure with a mechanical gauge, then test the sensor circuit.
General guidance for generic OBD2 codes. Always follow the maker's procedure for the car in front of you.