P0522 Code: Engine Oil Pressure Sensor/Switch Circuit Low Voltage
🟠 Moderate severity · drivable
Drivable if oil level is fine, but the oil pressure reading is unreliable, so check the oil soon.
What P0522 means
The engine oil pressure sensor is reporting voltage that's too low. This often indicates an electrical fault in the sensor circuit rather than a real oil pressure problem.
Symptoms
- Check engine light is on
- Oil pressure gauge reading very low
- Possible false low-oil-pressure warning
Common causes
- most common: Faulty oil pressure sensor
- common: Shorted or damaged wiring
- common: Low engine oil level
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Check the engine oil level and top up if low | Yes | $10–30 |
| Replace the oil pressure sensor | Yes | $20–80 |
| Repair shorted sensor wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0522 code?
Yes, but check the oil level first. If the level is fine, it's likely a faulty sensor or wiring.
What is the most common cause of P0522?
A faulty oil pressure sensor reading low voltage.
How much does it cost to fix a P0522?
Typically $20–$80 for a new oil pressure sensor.
Related codes
P0520
P0520 Code: Engine Oil Pressure Sensor/Switch Circuit Malfunction
P0521P0521 Code: Engine Oil Pressure Sensor/Switch Range/Performance
P0523P0523 Code: Engine Oil Pressure Sensor/Switch A High Input
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.