CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: SYSTEM DIAGRAM (2008 LX570)

Communication Table

Transmitter	Receiver	Signal	Communication Line
ECM	Distance Control ECU	A/T transmission signal Cruise control operation signal Cruise control low speed operation signal Accelerator pedal idle signal Set vehicle time signal Brake demand response signal Stored vehicle speed signal Current vehicle speed signal Cruise control switch signal Brake control operation signal Cruise control demand throttle opening angle signal Radar light emission prohibiting signal Dynamic radar cruise designation signal Brake control interrupting signal Steering wheel signal Cruise control demand opening angle signal	CAN
Distance Control ECU	ECM	Millimeter wave radar sensor beam axis deviation signal Millimeter wave radar sensor malfunction signal Millimeter wave radar sensor grime signal Bad weather detection signal Communication error signal (from distance control ECU to millimeter wave radar sensor) Communication error signal (from ECM to distance control ECU) Communication error signal (from master cylinder solenoid to distance control ECU) Yaw rate communication error signal Steering angle sensor communication error signal Distance control ECU voltage signal Dynamic radar cruise designation response signal Estimated vehicle speed signal Vehicle-to-vehicle distance signal Vehicle-to-vehicle distance control signal Brake control demand signal Throttle fully closed demand signal Approach warning signal (skid control buzzer demand signal) Cruise target deceleration gradient signal Vehicle-to-vehicle distance control acceleration signal	CAN
ECM	Master Cylinder Solenoid (Skid Control ECU)	Cruise target deceleration gradient signal Cruise target deceleration signal Throttle fully closed demand signal Brake control demand signal Dynamic radar cruise control designation signal Cruise control operation signal	CAN
Master Cylinder Solenoid (Skid Control ECU)	Distance Control ECU	Wheel speed signal Speed sensor power drop signal Speed sensor condition signal Yaw rate sensor signal Yaw rate sensor zero point error signal	CAN
Master Cylinder Solenoid (Skid Control ECU)	ECM	Brake component malfunction signal Brake control malfunction signal Drive wheel slip signal Cruise control cancel signal Skid control buzzer malfunction signal Communication logic error signal (from ECM to master cylinder solenoid) Brake demand response signal Brake control interrupting signal Brake control operation signal	CAN
Steering Angle Sensor	Distance Control ECU	Steering angle sensor malfunction signal Steering angle sensor signal Steering angle sensor zero point signal	CAN
Yaw Rate Sensor	Distance Control ECU	Yaw rate sensor signal Yaw rate sensor voltage signal	CAN
ECM	Combination Meter	Cruise control diagnosis signal (DTC) Preceding vehicle detection signal Approach warning signal Vehicle-to-vehicle distance signal Millimeter wave radar 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 radar cruise warning signal Cruise control vehicle speed signal	CAN
Windshield Wiper ECU	Distance Control ECU	Wiper and washer switch signal	CAN
Distance Control ECU	Combination Meter	Millimeter wave radar sensor beam axis deviation signal Vehicle-to-vehicle distance signal Preceding vehicle detection signal	CAN