P0522 – Engine Oil Pressure Sensor/Switch Low Voltage

Meaning:

When the PCM has detected a very low value in engine oil pressure sensor, the P0522 happens
The P0522 is triggered when the PCM has detected a very low value in engine oil pressure sensor

The PCM has detected a very low value in engine oil pressure sensor.

Main Symptoms:

  • Check Engine Light comes on
  • Oil pressure light comes on
  • Oil pressure gauge reads zero or low value
  • Engine may fail to start
  • Engine may stall when you’re driving

Possible Causes:

  • Wiring problem in oil pressure sensor circuit
  • Defective oil pressure sensor
  • Low oil level or blockage in oil passage
  • Using wrong type of oil

Diagnostic Steps:

  • Check oil level and condition
  • Visually inspect all wiring to oil pressure sensor
  • Check the sensor’s voltage to ensure it meets manufacturer’s specs
  • If you can, take the oil pressure reading and compare with the reading shown by the vehicle’s PCM. That should tell you if the problem is with oil pressure

Read More: OBD2 Codes List: Meaning, Fixes, and Free Download