Headlight Auto Leveling Control Module

Headlight auto leveling control module is installed at the foot of the front passenger seat. It uses the headlight ON signal from the lighting switch, vehicle speed signal from BCM and vehicle position signal from height sensors to calculate the angle of the headlight optical axis to be corrected. Then it adjusts the optical axis angle of headlight based on the calculated angle value by driving the headlight leveling actuator so that proper headlight aiming is obtained. Also, when any abnormality is detected in the system, the headlight auto leveling control module makes the headlight auto leveling warning light in the combination meter light up to warn the driver of an abnormality in the system.