Only for vehicles with Xenon headlights: Function

The automatic vertical headlight aim control system consists of:

• Automatic vertical headlight aim control system control module -J431-
• Left rear level control system sensor -G76-
• Left front level control system sensor -G78-
• Right headlight beam adjusting motor -V48-
• Left headlight beam adjusting motor -V49-

When starting the engine, vehicle level is measured and compared to the set point. This signal is sent to the headlight beam adjusting motors which adjust headlight position to this value once, whether or not the low beams are on.

After this single correction, signals to change low beam position will only be sent to the headlight beam adjusting motors with the low beams on.

If a trip is interrupted (vehicle speed less than 1 km/h) and a vehicle position change is recognized due to additional weight (for example, extra people in the car) the headlights will be automatically adjusted to the proper height.

All changes made by the automatic vertical headlight aim control system are due to static operating conditions.