Wheel Speed Sensors are devices that measure the speed of the wheels and thus, verify if there is any risk of wheel lock-up. These sensors produce a voltage signal based on that created by a magnetic field, and then send it to a corresponding controller
The Anti-lock Braking System (ABS) Module monitors the Speed Sensor for the right front wheel for faults. If the irregular performance of this sensor is found, the diagnostic code C0034 OBD2 will be stored.