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The mkiv Supra Owners Club

Anti-lock Brake System

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Anti-lock Brake System and safety precautions...


The Anti-Lock Brake System (ABS) consists of hydraulic unit, brake actuator, actuator solenoids, lateral acceleration sensor, pump motor, ABS Electronic Control Unit (ECU), indicator light, and 4 wheel speed sensors. See Fig. 1.


An ABS indicator light, located in the instrument cluster, comes on for 3 seconds as a bulb test when ignition is first turned on. A primary check is performed after each engine start and initial time vehicle speed exceeds 6 MPH. An actuator noise is heard during this period of time. This is normal.

anti lock brake safety precuations.pdf


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