Section 23 (Anti-Lock Brake System): Description
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 1991 Pontiac Grand Prix, 1991 Oldsmobile Cutlass Supreme, 1991 Buick Regal, 1990 Pontiac Grand Prix, and 1990 Oldsmobile Cutlass Supreme. However, it is still accessible from the selected car via links, so may be relevant.
The Delco Moraine Anti-Lock Brake System-III is designed to prevent wheel lockup during heavy braking. This provides improved driver control by reducing the distance required to stop vehicle.
Major component parts of system include the following: anti-lock brake controller, 4 wheel-speed sensors, 2 dash-mounted warning lights, front and rear enable relays and Powermaster-III booster/master cylinder assembly. The Powermaster-III, known as a hydraulic unit on other models, also houses hydraulic accumulator, electric pump motor, solenoids and pressure switch. See Fig 1.
NOTE:
For more information on brake system, see BRAKE SYSTEM
article in the BRAKES section.