Section 59 (Anti-Lock Brake System): Operation
WARNING: This page is about a different car, the 1995 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.
Each Wheel Speed Sensor (WSS) sends an AC electrical signal to ABS-ECU. The ABS-ECU translates this information as wheel speed. When any decelerating wheel speed rate is determined to be excessive in comparison to other wheel speeds, the hydraulic unit cycles hydraulic brake pressure to each wheel to equalize speed of all wheels. ABS turns itself off when vehicle slows to 4 MPH. Minor lock-up may occur at this point.