Sensor-Rear Wheel Speed: Description

Fig 1: Wheel Speed Sensor t Rear Knuckle

Courtesy of DAIMLERCHRYSLER CORP.

One wheel speed sensor (3) is mounted to the rear of each rear knuckle. The wheel speed sensor, using a tone wheel attached to the rear axle half shaft as a trigger mechanism, communicates with the Antilock Brake Module, informing it of that wheel's speed.