9-3 (9440) L4-2.0L Turbo (2007)
/l4-2.0l_turbo/Page-4665006.png)
Curve-lighting headlamps (AFL)
Curve-lighting headlamps constitute a system that broadens the beam slightly when driving on winding roads. The headlamp's xenon optics are equipped
with a stepper motor that can turn the optics maximum 15 degrees to the left or right from the "straight ahead position". The AFL control module is
connected to the P-bus and uses "vehicle speed" and "steering angle" to determine how much the headlamps should be turned. Using a communication
lead, AFL communicates with a control module integrated in the headlamps. The control module controls the stepper motors for headlamp levelling and
curve lighting. The system also has a function that extends the area illuminated by the beam at speeds over 110 km/h.
Headlamp levelling, overview:
