AUTOMATIC HIGH BEAM SYSTEM PROBLEM SYMPTOMS TABLE

Note

When replacing the combination meter assembly, make sure to replace it with a new one.

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.

  • Camera detection malfunctions can be detected using the GTS.

  • Aiming misalignment of the camera can be detected using the GTS. If the camera aiming is misaligned, check the following conditions:


    • Check if the vehicle is inclined.

    • Check if the windshield glass is installed correctly.

    • Check if the lane departure warning camera is installed correctly.

    • Check if there is deformation of the lane departure warning camera.

  • If the main body ECU (multiplex network body ECU) is replaced, refer to Registration.

  • As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure.*

    *: w/ Door Control Battery

Automatic High Beam System
Symptom Suspected Area Link
Automatic high beam indicator on the combination meter assembly does not illuminate. Check operating conditions Click here
Check meter / gauge system

Click here

Combination meter assembly

Click here

Lane departure warning camera Click here
Main body ECU (Multiplex network body ECU)(for LHD)

Click here

Main body ECU (Multiplex network body ECU)(for RHD)

Click here

Automatic high beam system does not operate. Check Data List (Auto H Beam STS) Click here
Automatic high beam switch circuit Click here
Headlight circuit

Click here

High beam headlight circuit (for Halogen Headlight and LED Headlight)

Click here

Headlight dimmer switch circuit

Click here

Check automatic light control system operation

Click here

Lane departure warning camera power source circuit

Click here

Lane departure warning camera power source circuit (w/ Steering Control)

Click here

Lane departure warning camera Click here
Main body ECU (Multiplex network body ECU)(for LHD)

Click here

Main body ECU (Multiplex network body ECU)(for RHD)

Click here