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Anti-Lock Brake System - Except 5.3 Abs Or Abs/TCS: Description

Anti-Lock Brake System (ABS) is designed to prevent wheel lock-up during heavy braking. ABS electronically controls brake fluid pressure, reducing chance of wheel lock-up. This allows driver to maintain better steering control of vehicle. Major components of ABS system are 4 wheel speed sensors, 4 tone wheels, ABS control unit, hydraulic unit, "G" sensor (AWD M/T) and ABS warning light. See Fig 1 .

NOTE: For more information on brake system, see BRAKE SYSTEM article.
Fig 1: ABS Components
G96C20471Courtesy of SUBARU OF AMERICA, INC.