System Diagram

Fig 1: Active Torque Control 4WD System Diagram

G06025165

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication Table

ACTIVE TORQUE CONTROL 4WD SYSTEM REFERENCE CHART

Transmitting ECU	Receiving ECU	Signal	Communication Method
Skid control ECU	AWD control ECU	Wheel speed sensor signal Stop light switch signal Deceleration sensor signal	CAN communication system
ECM	AWD control ECU	Shift position sensor signal Throttle position sensor signal Crank position sensor signal	CAN communication system
Main body ECU	AWD control ECU	Parking brake switch signal	CAN communication system
AWD control ECU	Combination meter	AWD warning light signal	CAN communication system