Headlight Leveling System

System Description

Headlight Leveling System

The headlights leveling system is composed of the headlight leveling control unit, the suspension stroke sensor, and the left and right headlight leveling motors.

The system monitors the vehicle posture from the suspension stroke sensor every 3 minutes while the vehicle is running constantly with the headlight switch ON, and after 8 seconds from the vehicle stops with the ignition switch and headlight switch ON.




If the control unit detects the posture change of the vehicle, the control unit controls the headlight leveling motors to adjust the headlight vertical position.

Suspension Stroke Sensor

The suspension stroke sensor detects the vehicle posture and send a voltage signal (about 0.4 - 4.6 V) to the headlight leveling control unit.

Headlight Leveling Control Unit

The headlight leveling control unit is located under the driver's side of the dashboard. The headlight leveling control unit sends a voltage signal (about 2-11 V) to the left and right headlight leveling motors that is based on the voltage signal received from the suspension stroke sensor.

Headlight Leveling Motors

The headlight leveling motor is located behind the both headlight and adjusts the headlights vertical position by receiving the voltage signal (about 2-11 V) from the headlights leveling control unit.