OBD Codes List

Diagnostic reference · P252F

P252F

Engine Oil Level Too High

System
Speed and idle control (P code)
Lamp
Check Engine Light
Category
Powertrain - Computer and Auxiliary Controls

What it means

P252F means Engine Oil Level Too High.

Check these first

  • The engine oil level is above the full mark
  • Coolant or fuel is entering the crankcase
  • An overfilled engine during the last oil change
  • A failed engine oil level sensor

What to do next

  1. Check the engine oil level on the dipstick
  2. Drain oil until the level reads at the full mark
  3. Check the coolant and fuel systems for leaks into the oil
  4. Read the engine oil level sensor on a scan tool
  5. Replace the engine oil level sensor if the level is correct but the code stays
  6. Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.