Anti-Lock Brake System (Abs)

During normal driving and braking operations, ABS acts like a conventional braking system. Each wheel sensor constantly sends an AC voltage signal to EBCM/EBTCM, which then translates this information into wheel rotation or wheel speed.

When EBCM/EBTCM determines wheels are about to lock-up, it activates Pressure Modulator Valve (PMV) to increase or decrease hydraulic pressure to each wheel. A slight pulsation should be felt through brake pedal.

BRAKE, ANTI-LOCK and TRACTION OFF warning lights (if equipped) should come on when ignition switch is turned and vehicle is started. If any instrument panel warning light stays on longer than approximately 5 seconds after vehicle is started, system malfunction is indicated. See DIAGNOSIS & TESTING.