OBD Guide

C066C

Right Rear Wheel Speed Sensor B Incorrect Component Installed

Severity
⚠️ Medium
Approx. repair cost
$22–56 (est.)

Symptoms

  • Incorrect operation of ABS and ESP
  • The ABS fault light or the check engine light comes on
  • Loss of wheel speed data in diagnostic equipment

Causes

  • Incorrect wheel speed sensor installed
  • Damaged or incompatible wiring harness
  • ABS control unit software error

How to Fix

  1. Check the condition of the right rear wheel speed sensor
  2. Make sure the correct sensor is installed
  3. Check wiring harness for damage
  4. Update ABS control unit software (if necessary)

Related codes

Error C066C by Vehicle Brand