1. The wheel speed sensor is on the wheel, which is easy to dirty with dirt or mud. The sensor is covered with mud. It affects the transmission of speed signal. ABS computer cannot judge the speed signal. Therefore, the fault light will be displayed.At this time, clean the sensor dirt or replace the sensor, adjust the gap between the sensor and the signal ring gear, the ABS fault lamp will disappear.
2. The wheel speed sensor is damaged and will not be used, and the ABS failure lamp will also turn on.In this case, only the wheel speed sensor can be replaced.