Section 2 (Anti-Lock Brake System): Description
WARNING: This page is about a different car, the 2000 Hyundai Elantra and 1999 Hyundai Elantra. However, it is still accessible from the selected car via links, so may be relevant.
The Anti-Lock Brake System (ABS) keeps wheels from locking up under extreme braking conditions. ABS prevents excessive wheel slip by pulsing modulation of brake pressure. Hydraulic and Electronic Control Unit (HECU) monitors wheel speed. If any wheel slows too quickly (approaches lock-up) during brake actuation, HECU will reduce pressure to that wheel to prevent lock-up.
ABS system consists of wheel speed sensors, sensor rotors (tone wheels), ABS warning light and HECU. See Fig 1 .
NOTE:
For information on non-ABS brake components, see DISC & DRUM
article.