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

P05E0

Brake Pedal Position Sensor A and B Correlation

Brake-by-wire and electronic brake systems use two redundant pedal position sensors. Their readings disagree by more than the diagnostic tolerance - one or both has drifted, or wiring picks up noise on one channel.

SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / E0

Possible causes

  • One sensor has drifted out of tolerance high

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 80–280 €
  • Estimated time: 0.4–1.4 h
  • Component: brake pedal position sensor a
  • Component: brake pedal position sensor b
  • 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