System Diagram

Fig 1: Dynamic Laser Cruise Control System Diagram (1 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Dynamic Laser Cruise Control System Diagram (2 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Communication table:

COMMUNICATION CHART

Transmitting ECU (transmitter)	Receiving ECU	Signals	Communication method
Laser Sensor	Distance Control ECU (Cruise Control ECU)	Vehicle-to-vehicle distance signal Preceding vehicle detection signal Relative acceleration rate signal Relative vehicle speed signal Width and position of object ahead signal Diagnosis data signal	Serial
Laser Sensor	ECM	Laser sensor operation signal	Wire
Distance Control ECU (Cruise Control ECU)	Laser Sensor	Actual vehicle speed signal Estimated curve radius signal Laser sensor illumination request signal Wiper condition signal Cruise control switch signal Set distance signal Beam axis adjustment data signal	Serial
Distance Control ECU (Cruise Control ECU)	ECM	Target acceleration rate signal Target deceleration rate signal Vehicle-to-vehicle distance signal Preceding vehicle detection signal Brake axis deviation signal Laser sensor grime signal Bad weather detection signal Gear request signal Diagnosis data signal	CAN
Distance Control ECU (Cruise Control ECU)	Combination Meter	Display data signal	BEAN and CAN
Distance Control Switch	Distance Control ECU	Distance control switch	Wire
Yaw Rate & Deceleration Sensor	Distance Control ECU	Yaw rate signal	CAN
Steering Angle Sensor	Distance Control ECU	Steering angle signal	CAN
ECM	Distance Control ECU	Setting vehicle speed signal Actual vehicle speed signal Cruise control switch (main switch) signal Set distance signal Brake request response signal Accelerator pedal idle signal Stop light signal Transmission information signal	CAN
ECM	Skid Control ECU	Target deceleration rate signal Target deceleration rate gradient signal Brake request signal	CAN
ECM	Combination meter	Cruise control switch signal	BEAN and CAN
Skid Control ECU	Distance Control ECU (Cruise Control ECU)	Yaw rate zero point information signal	CAN
Skid Control ECU	ECM	Cruise control cancel request signal Brake request response signal	CAN
Rain Sensor	Combination Switch	Raindrop volume signal	Wire
Combination Switch	Distance Control ECU (Cruise Control ECU)	Wiper operation signal Wiper control switch signal Taillight control switch signal	CAN
Combination Switch	ECM	Wiper control switch signal	CAN
ECM	Combination Meter ECU	Cruise control diagnosis signal (DTC) Preceding vehicle detection signal Approach warning signal Vehicle-to-vehicle distance signal Laser sensor grime signal Bad weather detection signal Vehicle-to-vehicle distance control signal Vehicle-to-vehicle distance control check mode signal Vehicle-to-vehicle distance control standby condition signal Constant speed cruise signal CRUISE indicator operation signal Cruise control warning signal Dynamic laser cruise warning signal Cruise control vehicle speed signal	CAN BEAN (Instrument Panel Bus)
Distance Control ECU (Cruise Control ECU)	Combination Meter ECU	Laser sensor optical axis deviation signal Vehicle-to-vehicle distance signal Preceding vehicle detection signal	CAN BEAN (Instrument Panel Bus)
Passenger Side J/B ECU	ECM	ECT SNOW mode switch signal	CAN BEAN (Instrument Panel Bus)
Rain Sensor	Distance Control ECU (Cruise Control ECU)	LO operation signal HI operation signal	CAN BEAN (Door Bus)
Combination Switch	Distance Control ECU (Cruise Control ECU)	Turn switch signal Wiper switch position signal	CAN BEAN (Instrument Panel Bus)
Steering Pad Switch (DISP 2)	ECM	Steering pad switch (DISP 2) signal	CAN BEAN (Instrument Panel Bus)
Luggage Compartment J/B ECU	ECM Distance Control ECU (Cruise Control ECU)	Stop light operating condition signal	CAN BEAN (Instrument Panel Bus)