Antilock Brakes / Traction Control Systems: Description and Operation
Anti-Lock ControlAnti-Lock Brake System (ABS) with Traction Control
The anti-lock brake system (ABS) with Traction Control consists of these components:
^ Hydraulic control unit (HCU)
^ ABS module
^ Rear wheel speed sensors
^ Rear wheel speed sensor ring (integral to the halfshaft)
^ Front wheel speed sensors
^ Front wheel speed sensor rings (integral to the hub and bearing assembly)
^ Stability assist/traction control switch
^ Yellow ABS warning indicator
^ Stability assist/traction control active/fail warning lamp
The front wheel speed sensor rings are integral to the front hub and bearing assemblies.
The rear wheel speed sensor rings are integral to the rear halfshaft.
Anti-Lock Brake System (ABS) With Traction Control and Stability Assist
The anti-lock brake system (ABS) with Traction Control Stability Assist consists of these additional components:
^ Yaw rate sensor (contains the accelerometer(s) and is also known as the Sensor cluster)
^ Steering wheel rotation sensor
^ Active brake booster
- master cylinder pressure sensor
- pedal travel sensor
- brake pedal force switch
The front wheel speed sensor rings are integral to the front hub and bearing assemblies.
The rear wheel speed sensor rings are integral to the rear halfshaft.