LANE DEPARTURE ALERT SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

If problem symptoms are found when a normal code is output in the DTC check on the lane departure alert system and on the communication system, check each symptom by checking the suspected areas in the order they are listed.

Lane Departure Alert System
Symptom Suspected Area See page
Lane departure alert system does not operate at all Power source circuit

Click here

Lane departure alert switch circuit

Click here

Pre-collision city sensor

Click here

The lane departure alert indicator light does not illuminate even by operating the lane departure alert switch Lane departure alert switch circuit

Click here

Combination meter assembly

Click here

Pre-collision city sensor

Click here

The lane departure alert indicator light does not turn off even by operating the lane departure alert switch Lane departure alert switch circuit

Click here

Combination meter assembly

Click here

Pre-collision city sensor

Click here

The lane departure alert system is not canceled even by operating the turn signals Data List/Active Test (meter/gauge system)

Click here

Lighting system/turn signal switch circuit

Click here

Pre-collision city sensor

Click here

Situations in which the lane departure alert system cannot recognize the lanes even though the white lines are visible have significantly increased Dirt on the windshield glass -
Dirt on the pre-collision city sensor -
Dirt on the headlight assembly -
Object placed on top of instrument panel -
Headlight assembly has been modified -
Replacement with suspension outside of specifications -
Foreign object between windshield glass and pre-collision city sensor -
Pre-collision city sensor adjustment

Click here

The lane departure alert system is operating but is not displayed in the multi-display in the combination meter assembly Combination meter assembly

Click here

Pre-collision city sensor

Click here