CRUISE CONTROL SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

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.

Cruise Control System
Symptom	Suspected Area	See page
Main switch cannot be turned on (cruise control indicator light on combination meter does not illuminate)	Cruise control switch circuit	Click here
	Cruise main indicator light circuit	Click here
	Meter/gauge system	Click here
	ECM	Click here
	CAN communication line (for LHD)	Click here
	CAN communication line (for RHD)	Click here
Vehicle speed setting cannot be performed (cruise control indicator light on combination meter illuminates when main switch is turned on, but turns off when operating SET function)	Cruise control switch circuit	Click here
	Meter/gauge system	Click here
	ECM	Click here
Vehicle speed setting cannot be performed (cruise control indicator light on combination meter illuminates when main switch is turned on, and remains illuminated when operating SET function)	Cruise control switch circuit	Click here
	Vehicle speed sensor circuit	Click here
	Meter/gauge system	Click here
	ECM	Click here
	CAN communication line (for LHD)	Click here
	CAN communication line (for RHD)	Click here
While the vehicle is driving with cruise control, the SET control is canceled (cruise control indicator light remains illuminated)	Cruise control switch circuit	Click here
	Vehicle speed sensor circuit	Click here
	Stop light switch circuit	Click here
	Cruise main indicator light circuit	Click here
	Park/neutral position switch circuit (for 1UR-FE)	Click here
	Park/neutral position switch circuit (for 3UR-FE)	Click here
	ECM	Click here
Hunting (speed is not constant)	Vehicle speed sensor circuit	Click here
Hunting (speed is not constant)	ECM	Click here
Vehicle speed setting cannot be canceled (CANCEL function failure)	Cruise control switch circuit	Click here
	ECM	Click here
DTC is not output, or is output when it should not be	TC and CG terminal circuit	Click here
DTC is not output, or is output when it should not be	ECM	Click here
Cruise control indicator light does not come on	Cruise control switch circuit	Click here
	Cruise main indicator light circuit	Click here
	Meter/gauge system	Click here
	ECM	Click here
	CAN communication line (for LHD)	Click here
	CAN communication line (for RHD)	Click here