Anti-Lock Brake System: Description

CAUTION: See ANTI-LOCK BRAKE SAFETY PRECAUTIONS article in GENERAL INFORMATION.

The Anti-Lock Brake System (ABS) control module senses reductions in front and rear wheel speed and modulates hydraulic pressure to the brakes to prevent wheel lock-up. The ABS consists of a hydraulic unit, 4 wheel speed sensors and sensor rotors, ABS relay (fail-safe relay and motor relay), pump motor and ABS control module. See Fig 1 . An ABS warning light is located on the instrument cluster.

NOTE: For more information on brake system, see BRAKE SYSTEM article.

Fig 1: Locating ABS Components (Typical)

Courtesy of MAZDA MOTORS CORP.