System Diagram

Fig 1: Electronically Controlled Brake System Diagram (1 Of 4)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Electronically Controlled Brake System Diagram (2 Of 4)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Electronically Controlled Brake System Diagram (3 Of 4)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Electronically Controlled Brake System Diagram (4 Of 4)

TRANSMITTING ECU TRANSMITTER AND COMMUNICATION METHOD REFERENCE

Transmitting ECU (Transmitter)	Receiving ECU	Signals	Communication Method
Hybrid vehicle control ECU	Skid control ECU	Accelerator pedal idling signal Accelerator pedal opening percentage signal Shift position signal Vehicle load signal	CAN communication system
Yaw rate and acceleration sensor	Skid control ECU	Yaw rate and acceleration signal	CAN communication system
Steering angle sensor	Skid control ECU	Steering angle and direction signal	CAN communication system
Skid control ECU	Hybrid vehicle control ECU	Wheel speed signal VSC data signal	CAN communication system
Skid control ECU	No 1 meter ECU	ABS warning light ON signal Brake warning light / Red (Malfunction) ON signal Brake warning light / Yellow (Minor malfunction) ON signal Slip indicator light ON signal Speedometer signal Brake hold standby indicator signal Brake hold operated indicator signal	CAN communication system
Skid control ECU	Power steering ECU	Target additional torque signal	CAN communication system
Power steering ECU	Skid control ECU	EPS cooperative control enabling signal	CAN communication system
Skid control ECU	Steering control ECU	Target relative angle signal	CAN communication system
Steering control ECU	Skid control ECU	VGRS cooperative control enabling signal VGRS relative angle (speed) signal	CAN communication system
Distance control ECU	Skid control ECU	Brake control request signal	CAN communication system
Steering pad switch ECU (Brake hold switch)	Skid control ECU	Brake hold request signal	CAN communication system