Town Car V8-4.6L VIN W (1997)
Wheel Speed Sensor: Description and Operation
VARIABLE-RELUCTANCE SENSORS
The ABS system uses four variable-reluctance ABS sensors to determine the rotational speed of each wheel. The front brake anti-lock sensors and
rear brake anti-lock sensors operate on magnetic induction principle. As the teeth on the brake anti-lock sensor indicators rotate past the stationary
brake anti-lock sensors, a signal proportional to the speed of the rotation is generated and sent to the ABS control module through a twisted pair
harness.
Front
The front brake anti-lock sensors are attached to the front wheel spindles. The front brake anti-lock sensor indicators are pressed onto the wheel
hub assemblies.
Rear
The rear brake anti-lock sensors are attached to the rear wheel disc brake adapters. The rear brake anti-lock sensor indicators are pressed onto the
axle shafts.