Engine Oil Pressure Sensor Circuit
The oil pressure sensor circuit is malfunctioning.
Have this diagnosed before driving further
Informational only. Consult a qualified mechanic.
- Faulty oil pressure sensor
- Wiring issue
- Low oil level
- Oil pump failure
Check oil level immediately. If low, add oil. Replace sensor if oil level is fine.
What does P0520 mean?
The P0520 OBD-II diagnostic trouble code (DTC) indicates: engine oil pressure sensor circuit. This is a high-severity powertrain code that your vehicle's onboard diagnostics system triggers when the oil pressure sensor circuit is malfunctioning. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.
Use Your Service Book to log this diagnostic trouble code to your vehicle's service history, track repairs, and get maintenance reminders — all for free.
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