Front Wheel Speed Sensor: Description

Fig 1: Identifying Brake Components

Courtesy of DAIMLERCHRYSLER CORP.

1 - MASTER BRAKE CYLINDER

2 - RIGHT REAR WHEEL SPEED SENSOR

3 - LEFT REAR WHEEL SPEED SENSOR

4 - LEFT FRONT WHEEL SPEED SENSOR

5 - ABS HYDRAULIC UNIT

6 - RIGHT FRONT WHEEL SPEED SENSOR

A wheel speed sensor is used at each wheel. The front sensors are mounted to the steering knuckles. Tone wheels are mounted to the outboard ends of the front axle shafts. The gear type tone wheel serves as the trigger mechanism for each sensor. The wheel speed sensor's function is to supply the current wheel speed to the CAB.