Antilock Brakes / Traction Control Systems: Description and Operation
Anti-Lock ControlAnti-Lock Brake System (ABS)
The anti-lock brake system consists of the following components:
^ Hydraulic control unit (HCU)
^ Anti-lock brake system (ABS) module
^ Rear wheel speed sensor
^ Rear wheel speed sensor ring
^ Front wheel speed sensors
^ Front wheel speed sensor rings
^ Yellow ABS warning indicator
^ Stoplamp switch
^ Traction control switch (TCS) (PCM controlled)
The front wheel speed sensor rings are integral to the front hub and bearing assemblies.
The rear wheel speed sensor ring is integral to the rear axle.