C5 Check Left Front Sensor Air Gap
- Remove the left front wheel and tire.
- Check for damage to the front brake anti-lock sensor or front brake anti-lock sensor indicator.
- Check for objects sticking to the sensor or ring.
- Check the air gap between the ring and sensor (0.5 mm-0.95 mm specification).
- Check for excessive wheel bearing end play.
- Are the conditions OK?
YES -- If light is coming on all the time, replace anti-lock brake control module.
NO -- Service condition as required.