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

C0186

Lateral Acceleration Sensor Circuit

The stability control module has detected an implausible signal from the lateral acceleration sensor. ESP uses lateral g-force together with yaw rate and steering angle to detect skid conditions — without it, ESP is disabled.

SystemChassis
Typegeneric / SAE
GroupC0
Range / number1 / 86

Possible causes

  • Lateral acceleration sensor failed high
  • Sensor cluster loose or mounted incorrectly medium
  • Wiring or connector fault low

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: 150–700 €
  • Estimated time: 0.5–2.5 h
  • Component: lateral acceleration sensor
  • Component: esp control module
  • Component: sensor cluster

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