Anti-Lock Brake System: Description

Anti-Lock Brake System (ABS) consists of hydraulic unit, actuator, solenoids, pump motor, ABS Electronic Control Unit (ECU), relays and speed sensors. See Figure.

An ABS indicator light is located on the instrument cluster. Indicator light comes on for 2 seconds as a bulb test when ignition is turned on. A primary check is performed after each engine start and initial vehicle speed exceeds 6 MPH. An actuator noise is heard during this period of time. This is normal.