AUTOMATIC HIGH BEAM SYSTEM PROBLEM SYMPTOMS TABLE

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.

Table 1. Automatic High Beam System
Symptom	Suspected Area	Link
Automatic high beam indicator light on the combination meter assembly does not illuminate.	Perform operation check	Click here
	Combination meter assembly	Click here
	Forward recognition camera	Click here
	Main body ECU (multiplex network body ECU)	Click here
Automatic high beam system does not operate.	Check Data List (Auto H Beam STS)	Click here
	Headlight (HI-BEAM) circuit	Click here
	Headlight dimmer switch circuit	Click here Click here
	Forward recognition camera system power source circuit	Click here
	Forward recognition camera	Click here
	Main body ECU (multiplex network body ECU)	Click here

Tip:

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 forward recognition camera is installed correctly.
- Check if there is deformation of the forward recognition camera.