System Diagram

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Vehicle Stability Control System Diagram (1 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Vehicle Stability Control System Diagram (2 Of 2)

Transmitting ECU (Transmitter)	Receiving ECU	Signal	Communication Method
Skid control ECU	Steering angle sensor	Steering angle sensor request signal	CAN communication system
Steering angle sensor	Skid control ECU	Steering angle sensor signal	CAN communication system
Skid control ECU	Yaw rate and acceleration sensor	Yaw rate and acceleration request signal	CAN communication system
Yaw rate and acceleration sensor	Skid control ECU	Yaw rate and acceleration signal	CAN communication system
Skid control ECU	ECM	Wheel speed signal VSC data signal	CAN communication system
ECM	Skid control ECU	Shift lever position signal Throttle position signal Engine speed signal Intake air temperature signal Engine torque request signal Accelerator pedal position signal	CAN communication system
Skid control ECU	Gateway ECU	ABS warning light signal BRAKE warning light signal TRAC OFF indicator light signal VSC OFF indicator light signal SLIP indicator light signal Wheel speed signal Meter buzzer signal (for sensor check)	CAN communication system