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

C0080

Wheel Speed Mismatch (Front Axle)

Front axle wheel speeds differ beyond the plausibility threshold over time. Often caused by mismatched tyre rolling circumference or a partially failing sensor.

SystemChassis
Typegeneric / SAE
GroupC0
Range / number– / 80

Possible causes

  • Mixed tyre sizes or worn tyre on one side high
  • One sensor drifting medium

Symptoms

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

Inspection / repair

  • Difficulty: easy
  • DIY: possible
  • Estimated cost: 0–400 €
  • Estimated time: 0.3–2 h
  • Component: wheel speed sensor fl
  • Component: wheel speed sensor fr
  • Component: tyres

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