Exterior lighting
The lighting functions are integrated into the footwell module (FRM).
These lighting functions are:
- Parking lights
- Main-beam headlights
- Headlight flasher
- Turn signals
- Hazard warning lights
- Brake lights
- Dipped-beam headlights
- Reversing light
- Front foglights
- Rear foglight
- Parking lights
Besides the lighting functions, other exterior lighting functions are also integrated in the footwell module:
- Light monitoring
- Headlight beam throw adjustment
- Emergency operating mode if the footwell module should fail
- Lamp replacement
(important lighting functions are substituted by other lights being actuated in the event of individual lights failing.)
- Follow-me-home lights
- Visual alarm after anti-theft alarm has been triggered
(the visual alarm is given as per encoding with hazard warning lights, turn signals with dipped headlights or turn signals with main-beam headlights.)
- Actuation of bi-xenon headlamps
- Control of the stepper motor controller for the adaptive headlights
- Turning light
The turning lights are coupled to the adaptive headlights.
All lighting functions except the additional brake light are supplied with a pulse-modulated signal by the footwell module (FRM). This PWM signal allows constant brightness of exterior lighting.