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

P05FF

Brake Pressure Sensor and Brake Pedal Position Sensor Correlation

The brake pressure sensor and pedal position sensor disagree by more than the diagnostic tolerance - one indicates pedal action without the other showing pressure, or vice versa.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / FF

Possible causes

  • Sensor offset on one channel high

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • Estimated cost: 120–500 €
  • Estimated time: 0.6–2 h
  • Component: brake pressure sensor
  • Component: brake pedal position sensor a
  • MIL / check engine light

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