System Diagram

WARNING: This page is about a different car, the 2009 Toyota Corolla. 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) COMMUNICATION CHART

Transmitting ECU (Transmitter)	Receiving ECU	Signal	Communication Method
Skid control ECU	Steering angle sensor	Steering angle sensor request signal	CAN communication system
Skid control ECU	Yaw rate and acceleration sensor	Yaw rate and acceleration request signal	CAN communication system
Skid control ECU	ECM	Wheel speed signal VSC data signal	CAN communication system
ECM	Skid control ECU	Shift position signal Throttle position signal Engine speed signal Intake air temperature signal Engine torque request signal Accelerator pedal position signal	CAN communication system
Main body ECU	Skid control ECU	Parking brake switch signal	CAN communication system
Skid control ECU	Combination meter	ABS warning light signal Brake warning tight signal VSC OFF indicator light signal Slip indicator light signal Skid control buzzer signal Wheel speed signal	CAN communication system