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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.