DYNAMIC RADAR CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE

Tip:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Table 1. Dynamic Radar Cruise Control System
Symptom	Suspected Area	Link
The dynamic radar cruise control system cannot be turned on using the cruise control main switch (ON/OFF)	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Cruise main indicator light circuit	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here
The dynamic radar cruise control system cannot be turned on using the cruise control main switch (ON/OFF)	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here
The cruise control mode cannot be changed between vehicle-to-vehicle distance control mode and constant speed control mode	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Combination meter assembly	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
Vehicle speed setting cannot be performed (in constant speed control mode)	VSC is turned off	-
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Stop light switch circuit	Click here
	Transmission control switch circuit	Click here
	Electronically controllde brake system	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Vehicle speed setting cannot be performed (in vehicle-to-vehicle distance control mode)	VSC is turned off	-
	The forward recognition camera is temporarily unavailable	-
	Millimeter wave radar sensor is dirty	-
	Millimeter wave radar sensor assembly beam axis not adjusted	Click here
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Transmission control switch circuit	Click here
	Millimeter wave radar sensor assembly	Click here
	Forward recognition camera	Click here
	Electronically controllde brake system	Click here
	Combination meter assembly	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Control of vehicle speed by the dynamic radar cruise control system is canceled (in constant speed control mode)	VSC is turned off	-
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Stop light switch circuit	Click here
	Transmission control switch circuit	Click here
	Electronically controllde brake system	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Control of vehicle speed by the dynamic radar cruise control system is canceled (in vehicle-to-vehicle distance control mode)	VSC is turned off	-
	Millimeter wave radar sensor is dirty	-
	The forward recognition camera is temporarily unavailable	-
	Millimeter wave radar sensor assembly beam axis not adjusted	Click here
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control main switch circuit	Click here
	Transmission control switch circuit	Click here
	Millimeter wave radar sensor assembly	Click here
	Forward recognition camera	Click here
	Electronically controllde brake system	Click here
	Combination meter assembly	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Hunting/vehicle speed is not constant (in constant speed control mode)	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Electronically controllde brake system	Click here
	Hybrid vehicle control ECU	Click here
Hunting/vehicle speed is not constant (in vehicle-to-vehicle distance control mode)	Millimeter wave radar sensor is dirty	-
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Electronically controllde brake system	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Pulling the cruise control main switch to CANCEL does not cancel control of vehicle speed by the dynamic radar cruise control system	Cruise control main switch circuit	Click here
	Hybrid vehicle control ECU	Click here
Moving the shift lever does not cancel control of vehicle speed by the dynamic radar cruise control system	Shift lever position sensor	Click here
	Shift lock control unit assembly (U760E)	Click here
	Transmission control switch circuit	Click here
	Hybrid vehicle control ECU	Click here
Depressing the brake pedal does not cancel control of vehicle speed by the dynamic radar cruise control system	Stop light switch circuit	Click here
	Hybrid vehicle control ECU	Click here
Even though the millimeter wave radar sensor is not dirty, the warning message "Clean Sensor" is displayed	Millimeter wave radar sensor assembly	Click here
The vehicle approach warning buzzer does not sound	Skid control buzzer circuit	Click here
	Check installation of millimeter wave radar sensor	Click here
	Check installation of forward recognition camera	Click here
	Forward recognition camera	Click here
	Millimeter wave radar sensor assembly	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Even though the vehicle approach warning buzzer is sounding, brake control is not performed when decelerating	Vehicle stability control system	Click here
	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Driving support ECU assembly (for LHD)	Click here
	Driving support ECU assembly (for RHD)	Click here
	Hybrid vehicle control ECU	Click here
Even though the SET function is operating, the cruise control SET indicator does not illuminate	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Cruise control SET indicator light circuit	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here
The cruise control indicator remains illuminated	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here
Indicators are not illuminated on the multi-information display in the combination meter assembly	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here
The buzzer does not sound when control of vehicle speed by the dynamic radar cruise control is canceled	CAN communication system (for LHD)	Click here
	CAN communication system (for RHD)	Click here
	Combination meter assembly	Click here
	Hybrid vehicle control ECU	Click here