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!

Chassis generic / SAE

C0581

Park Brake Apply Performance

The EPB module has detected that the apply operation took longer than expected or did not reach the target clamp force. Causes include corroded actuators, low battery voltage or worn brake pads.

SystemChassis
Typegeneric / SAE
GroupC0
Range / number5 / 81

Possible causes

  • Actuator corroded or sluggish high
  • Brake pads worn beyond limit medium
  • Low system voltage during apply medium

Symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • Estimated cost: 150–900 €
  • Estimated time: 0.8–3 h
  • Component: epb actuator
  • Component: epb module
  • Component: brake pads
  • Component: vehicle power supply

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