P0522
Engine Oil Pressure Sensor/Switch A Low
What it means
P0522 means Engine Oil Pressure Sensor/Switch A Low.
Where it lives
For P0522, the part to look at first is the sensor named here.
Check these first
- Worn bearings or pump causing low oil pressure
- Low oil level or wrong viscosity
- Clogged pump pickup
- Faulty oil pressure sensor
- Shorted sensor wiring
What to do next
- Stop driving until oil pressure is verified with a gauge
- Check oil level, condition, and grade
- Install a mechanical gauge to measure true pressure
- Inspect the pump pickup screen if pressure is truly low
- Replace the sensor only if gauge pressure is correct
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Updated
Generic SAE J2012 definition. Last updated 2026-08-30.