Anti-Lock Brake System With Traction Control System: Description

CAUTION: See ANTI-LOCK BRAKE SAFETY PRECAUTIONS article in GENERAL INFORMATION before servicing anti-lock brake system.

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, TCC/anti-lock brake switch mounted at brake pedal, 2 ABS relays located behind right side of instrument panel, and Brake Pressure Modulator Valve (BPMV) assembly. BPMV assembly houses electric pump motor and solenoid valves.

NOTE: For more information on brake system, see appropriate DISC & DRUM article.