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Home >> Pontiac >> 1989 >> 6000 STE >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - STE >> Operation >> Anti-Lock Brake System

Anti-Lock Brake System

During normal driving and braking operations, ABS acts like a conventional braking system. Each wheel sensors constantly transmits a 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 is felt through brake pedal when ABS is activated. Warning lights come on when key is turned on and vehicle is started. If either light remains on 30 seconds after vehicle is started, system malfunction is indicated. See DIAGNOSIS & TESTING  .