OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Powertrain generic / SAE

P0524

Engine Oil Pressure Too Low

The ECU has determined that engine oil pressure is below the safe operating threshold. Caused by low oil level, worn oil pump, severe engine wear, or a stuck pressure relief valve. Continued operation can rapidly destroy the engine.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 24

Possible causes

  • Engine oil level too low high
  • Oil pump worn medium
  • Engine bearings worn low

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 100–6000 €
  • Estimated time: 0.5–20 h
  • Component: oil pump
  • Component: engine oil
  • Component: oil pressure relief valve
  • MIL / check engine light
  • limp mode possible

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication