Toothed Ring

ANTI-LOCK BRAKE SENSOR

The anti-lock brake system uses four variable-reluctance sensors and toothed anti-lock sensor indicator rings to determine the rotational speed of each wheel. The sensors operate on the magnetic induction principle. As the teeth on the speed indicator ring rotate past the stationary sensor, a signal proportional to the speed of the rotation is generated and sent to the anti-lock brake control module through a twisted pair wire cable and wiring harness.