Abs/Traction Control System: Description
Toyota Traction Control (TRAC) system controls engine torque and braking of the driving wheels. TRAC system is available as an option on Supra. TRAC system consists of an actuator, pump, speed sensors, integrated ABS/TRAC ECU, relays, solenoids, on-off switch, light indicator and warning switch.
Integrated with the ABS, TRAC helps avoid slippage of driving wheels during starting and acceleration. System maintains optimal driving control during changing road surface conditions upon acceleration. System eliminates need for subtle acceleration pedal operation and improves vehicle stability when starting, accelerating or turning on slippery roads. See Fig 1.