Oil Pressure Sensor Circuit High
Oil pressure sensor reports high voltage or open circuit.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The oil pressure sensor is sending a high voltage signal to the computer, which usually means there's either a problem with the sensor itself or a wiring issue causing this incorrect reading.
What the computer is actually seeing
The ECU is detecting a voltage signal from the oil pressure sensor higher than 4.1 volts, indicating an issue in the circuit.
What a healthy reading looks like
Normal voltage from the sensor is between 0.5 to 4.5 volts, with 0.5 volts indicating low oil pressure and 4.5 volts indicating high pressure.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the oil level in the engine; if low, top it off and retest.
- 2Inspect the wiring and connectors to the oil pressure sensor for damage or corrosion. Repair as needed.
- 3Use a multimeter to check the voltage output of the oil pressure sensor. The expected range is 0.5 to 4.5 volts.
- 4If the sensor voltage exceeds 4.1 volts with the engine running, replace the oil pressure sensor located near the oil filter.
Common causes
- Faulty oil pressure sensor
- Wiring issues or short circuits
- Connector problems or corrosion
- Low oil level in the engine
- Malfunctioning engine oil pump
Typical repair cost
$$ ($200 - $500)
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive as low oil pressure can cause serious engine damage.
Will this code come back after a repair?
If the root cause is fixed, the code should not return.
Why does this code sometimes pair with other SPN codes?
Various sensor failures can occur simultaneously, affecting engine performance.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →