OBD-II code · Powertrain (generic)
P0520 Engine Oil Pressure Sensor or Switch A Circuit
Engine Oil Pressure Sensor or Switch A Circuit: an electrical fault is present in the circuit.
Is it safe to drive with P0520?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen in sensor or wiring
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.4 h
- Emissions test
- Usually unaffected
- Parts involved
- Oil Pressure Sensor A
Related codes
- P055AEngine Oil Pressure Sensor or Switch B Circuit
- P051DCrankcase Pressure Sensor A Circuit High
- P051ECrankcase Pressure Sensor A Circuit Intermittent or Erratic
- P051FPCV Filter Restriction
- P0521Engine Oil Pressure Sensor/Switch Range/Performance
- P0522Engine Oil Pressure Sensor/Switch Low Voltage
- P0523Engine Oil Pressure Sensor or Switch A High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.