Headlight Leveling System
System DescriptionHeadlight Leveling System (With HID)
The headlight leveling system is composed of the headlight leveling control unit, the suspension stroke sensor, and the left and right headlight leveling motors.
The system uses the suspension stroke sensor to monitor the vehicle ride height. The ride height is monitored every 3 minutes while the vehicle is running with the headlight switch ON, and 8 seconds after the vehicles stops with the ignition and headlight switches ON.
If the control unit detects a ride height change, the control unit controls the headlight leveling motors to adjust the headlight vertical position.
Suspension Stroke Sensors
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 uses the voltage signals it receives from the suspension stroke sensor to determine the voltage signal (about 2-11 V) it sends to control the left and right leveling motors.
Headlight Leveling Motors
The headlight leveling motors are located behind both headlights, and they adjust the headlights vertically based upon the voltage signals (about 2-11 V) they receive from the headlight leveling control unit.