Wheel Speed Sensor: Description and Operation

DESCRIPTION
The anti-lock brake sensor electrically senses each tooth of the anti-lock brake sensor indicator as it passes through the anti-lock brake sensor's electrical field. This data is sent on to the anti-lock brake control module. The anti-lock brake control module monitors the frequency created when the anti-lock brake sensor indicator teeth pass the anti-lock brake sensor to determine wheel rotational speed.

FRONT
^ The front brake anti-lock sensor is attached to the front wheel spindle.
^ The front brake Anti-lock Sensor Indicator is part of the wheel hub assembly.
^ The front Anti-lock Brake Sensors are not adjustable.

REAR
^ The rear Anti-lock Brake Sensor is attached to the rear disc brake caliper anchor plate.
^ The rear brake anti-lock sensor indicator is pressed onto the axle shaft.
^ The rear brake anti-lock sensors are not adjustable.