LANE DEPARTURE ALERT 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.

Lane Departure Alert System
Symptom	Suspected Area	Link
Lane departure alert system does not operate	Lane departure warning camera power source circuit	Click here
	Main switch circuit	Click here
	CAN communication system	Click here
	Lane departure warning camera	Click here
Lane departure alert indicator abnormal (Does not turn on)	CAN communication system	Click here
	Main switch circuit	Click here
	Perform Active Test (LDA Control Indicator)	Click here
	Combination meter assembly	Click here
	Lane departure warning camera	Click here
Lane departure alert indicator abnormal (Remains on)	CAN communication system	Click here
	Main switch circuit	Click here
	Combination meter assembly	Click here
	Lane departure warning camera	Click here
Lane departure alert system is not canceled even when turn signal light switch is operated	CAN communication system	Click here
	Meter/gauge system	Click here
	Lane departure warning camera	Click here
Increase in cases that driver can see line markers but system cannot detect lane markers	Windshield glass is dirty	-
	Lane departure warning camera is dirty	-
	Adjust lane departure warning camera	Click here
	Lane departure warning camera	Click here
Lane departure alert system is operating, but no operation condition is displayed on multi-information display in combination meter assembly	CAN communication system	Click here
	Combination meter assembly	Click here
	Lane departure warning camera	Click here
Warning buzzer does not sound even when lane markers are lost during lane departure warning function	Skid control buzzer assembly (for LHD)	Click here
	Skid control buzzer assembly (for RHD)	Click here
	Lane departure warning camera	Click here
	Harness or connector	-