Anti-Lock Brake System Operation

During normal driving and braking operations, ABS acts like a conventional braking system. Each wheel sensors constantly sends an AC signal to EBCM. This information is translated to wheel rotation speed. When EBCM determines that wheel lock-up is about to occur, it activates electro-magnetic valves, located inside valve block to increase or decrease hydraulic pressure to each wheel.

A slight pulsation should be felt through brake pedal. Warning lights should come on when key is turned on and vehicle is started. If either light stays on after approximately 30 seconds after vehicle is started, system malfunction is indicated. See TESTING in this article.