Wheel Speed Sensor Encoders

WARNING: This page is about a different car, the 2014 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

On FWD vehicles, the wheel speed sensor encoders are several magnets arranged in a circle around one side of the wheel bearing in alternating poles. As the wheel bearing rotates the wheel speed sensor is exposed to alternating north-south magnetic fields. The encoder is part of the wheel bearing and is serviced with the wheel bearing.

On AWD vehicles, the front wheel speed sensor encoders are several magnets arranged in a circle around one side of the wheel bearing in alternating poles. As the wheel bearing rotates the wheel speed sensor is exposed to alternating north-south magnetic fields. The encoder is part of the wheel bearing and is serviced with the wheel bearing. The rear wheel speed sensor encoders are several magnets arranged in a circle around one side of the rear halfshaft CV joint. As the halfshaft rotates, the wheel speed sensor is exposed to alternating north-south magnetic fields. The encoder is part of the halfshaft and is serviced with the halfshaft.