2. Based on the vehicle speed signal, the auto leveling control unit calculates the acceleration angle and checks the change in vehicle speed. In addition, if there is a difference between the two signals of the front and rear auto level sensors, the auto level control unit (main) checks the actual position of the vehicle. The same unit calculates the amount of optical axis adjustment based on these two signals and outputs a signal to the automatic alignment control unit (additional).
3. The auto leveling control unit compares the actual and set position of the reflector and then outputs a control signal to the headlight leveling actuator.
Note. When the ignition switch is turned to the ON position, the sound of the headlight leveling actuator may be heard for a few seconds, this is normal as the system is being tested for operational condition.
Note. When driving on a bad or uneven road, the auto leveling function would cause a flickering effect, resulting in dazzling oncoming drivers. To prevent this, the automatic headlight leveling is delayed.