P252B OBD II Trouble Code Engine Oil Quality Sensor Circuit Range/Performance

How to quickly diagnose and repair, and causes of a P252B electrical code which indicates a range or performance problem in the engine oil quality sensor circuit.

Symptoms of P252B OBD II Trouble Code

  • Engine may not crank over
  • Low oil pressure gauge reading
  • Service engine soon light illuminated
  • Check engine light illuminated
  • Check Oil message on instrument cluster

Common Causes of P252B OBD II Trouble Code

  • Defective engine oil quality sensor
  • Low engine oil level
  • Poor quality oil
  • Faulty or damaged wiring
  • Corroded, damaged or loose connector
  • Defective ECM

Severity of P252B OBD II Trouble Code

The severity of this code is severe and requires immediate attention because insufficient lubrication or oil pressure can cause permanent damage to internal engine components very rapidly.