Anti-Lock Brake System: Description
The Anti-Lock Brake System (ABS) with optional Traction Control System (TCS) is designed to prevent wheel lock-up during heavy braking. This provides improved driver control and reduces the distance required to stop vehicle. The system also monitors rear wheel speed and compares it to front wheel speed. TCS is operational at all vehicle speeds. If excessive front wheel speed is detected at either front wheel, TCS will be activated. TCS uses front brake intervention, fuel cutoff and spark retard to provide improved traction.
Major system components include the Electronic Brake Control Module (EBCM) or Electronic Brake and Traction Control Module (EBTCM), speed sensors mounted at each wheel, 3 instrument cluster warning indicators, brakelight switch mounted at brake pedal, electronic brake control relay located behind left side of instrument panel, malfunction indicator light traction control module located behind left side of instrument panel, TCS modulator/motor pack assembly located in engine compartment, and ABS modulator/motor pack assembly located in engine compartment, on brake master cylinder. See Fig 1 . ABS modulator/motor pack assembly houses electric pump motor an d solenoid valves.