Antilock Brakes / Traction Control Systems: Description and Operation

PURPOSE
The Anti-Lock Brake System (ABS) consists of electronic and hydraulic components. It allows for control of braking force so locking of the wheels can be avoided.
The ABS:
1. Improves proper tracking performance through improved steering control during the braking operation.
2. Eases obstacle avoidance through steering wheel operation.
3. Improves vehicle stability.

OPERATION
^ When the vehicle speed is less than 10 km/h (6 MPH) the ABS system does not work.
^ The ABS has a self-test function. The system turns on the ABS warning lamp for 1 second each time the ignition switch is turned "ON". After the engine is started, the ABS warning lamp turns "OFF". The system performs a test the first time the vehicle reaches 6 km/h (4 MPH). A mechanical noise may be heard as the ABS performs this self-test. This is a normal part of the self-test feature. If a malfunction is found during this check, the ABS warning lamp will stay "ON".
^ While driving, a mechanical noise may be heard during ABS operation. This is a normal condition.