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Adaptive forward lighting (AFL), brief description

Adaptive forward lighting (AFL), brief description


Overview


Unit, light switch (10/684)

Unit, ignition switch, ISM (20)

Brake light switch (29)

High-level brake light contact (31)

Transmission range switch, automatic transmission (245)

Motor, headlamp adjustment (280)

Underhood Electrical Centre, UEC (342)

Control module, TCS/ESP (382/671)

Control module, TCM (502)

Main instrument unit, MIU (540)/ SID (541)

Column Integration Module, CIM (703)

Tilt sensor, load, front (704F)

Tilt sensor, load, rear (704R)

Body Control Module, BCM (707)

AFL control module (752)

Engine Control Module (ECM)


Description

The AFL system (Adaptive Forward Lighting) is a system that combines automatic headlamp levelling and curve-lighting headlamps into a single system. The automatic headlamp levelling function is the same as for cars with AHL only. The difference is that it is integrated with the curve-lighting headlamp system.

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.