Wheel Speed Sensor
WARNING: This page is about a different car, the 2002 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Any time a wheel speed sensor is removed, thoroughly clean the mounting surfaces. On front wheel speed sensors, apply High-Temperature 4x4 Front Axle and Wheel Bearing Grease E8TZ-19590-A or equivalent meeting Ford specification ESA-M1C198-A.
The ABS uses three variable-reluctance sensors to determine vehicle speed. The wheel speed sensors operate on magnetic induction principle. As the teeth on the wheel speed sensor indicator rotate past the stationary sensor, a signal proportional to the speed of the rotation is generated and sent to the ABS module through a twisted cable and shielded wiring harness.