Major Components

Fig. 1 - Four-Wheel Anti-Lock Brake System:

The following is a list of major system components. Details of all components can be found later in this section.

HYDRAULIC ASSEMBLY

The hydraulic assembly provides the function of an integral master cylinder and hydraulic booster assembly and contains the wheel circuit valves used for brake pressure modulation.

WHEEL SPEED SENSORS

A wheel speed sensor is located at each wheel to transmit wheel speed information to the Controller-Anti-Lock Brake (CAB).

CONTROLLER-ANTI-LOCK BRAKE (CAB)

The (CAB) is a small control computer which receives wheel speed information, controls Anti-Lock operation and monitors system operation.
PUMP/MOTOR ASSEMBLY

The pump/motor assembly is an electrically driven pump that takes low pressure brake fluid from the hydraulic assembly reservoir and pressurizes it for storage in two accumulators for power assist and Anti-Lock braking.