System Diagram

WARNING: This page is about a different car, the 2006 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Vehicle Stability Control System Diagram (W/ VDIM) (2 Of 2)

COMMUNICATION METHOD CHART

Transmission ECU (transmitter)	Receiving ECU	Signals	Communication method
ECM	Skid control ECU	Shift position signal Throttle position signal Engine revolution signal Intake air temperature signal Engine torque request signal HAC prohibit request signal Accelerator pedal position signal	CAN communication system
Skid Control ECU	Yaw rate and acceleration sensor	Yaw rate and acceleration request signal	CAN communication system
Skid Control ECU	Steering angle sensor	Steering angle sensor request signal	CAN communication system
Skid Control ECU	ECM	Wheel speed signal VSC data signal	CAN communication system
Skid Control ECU	Gateway ECU	ABS warning light ON signal BRAKE warning light ON signal VSC warning (multi information display and master caution indicator light) light ON signal SLIP indicator light ON signal	CAN communication system
Distance control ECU	Skid control ECU	Brake control request signal	CAN communication system