http://www.babcox.com/editorial/ic/ic30121.htm Anti-Lock Brake System Service: Focus On Toyota Corolla Models, Larry Carley, ImportCar, March 2001 The anti-lock brake system used on older Toyota Corolla models is essentially the same as that on the Camry, Celica and other Toyota models: A Bosch 2 non-integral design with four wheel speed sensors and a separate hydraulic control circuit for each wheel. In 1992, the Corolla used a hydraulic modulator with four 3-position solenoid valves (the same