80D-18
MR-413-X44-80D000$500_eng.mif
V1
LIGHTING
Fault finding - Function80D
Exchanges between the lighting function components
Rain/light sensor - UCH
Functions available and operating mode
–Hazard warning lights switched on by ABS:
This function is available for all countries except Brazil, Finland, Great Britain, Japan and Sweden.
In the event of braking involving rapid deceleration, the ABS computer transmits a request to the UCH to switch on
the hazard warning lights via the multiplex network. The illumination of the hazard warning lights by the ABS is
configured using CF024 "Illumination of hazard warning lights by the ABS", and this function can be viewed
using LC018 "Illumination of the hazard warning lights by the ABS".
–See-me-home lighting:
This function is available on top of the range vehicles.
It switches on the dipped headlights for several seconds. This function is activated without using + 12 V APC by
using the "headlight flasher" several times. The See-me-home lighting function is configured using CF032 "See-me-
home lighting", and this function can be viewed using LC025 "See-me-home lighting".
–Daytime running lights:
In Scandinavian countries, when the engine is running, this function switches on the side lights and dipped
headlights without the driver switching them on. The daytime running lights function is configured using CF014
"Daytime running lights", and this function can be viewed using LC008 "Daytime running lights".
–Automatic headlighting:
This function is only available if the vehicle is equipped with a rain/light sensor.
It lights up the side lights and the dipped headlights as soon as the exterior light fades (night, tunnel, etc.).
This function is activated by turning the horn and lights switch from the OFF position to the "ON" position (side lights)
twice in succession.
This function can be configured using one of the following configurations:
–CF193 "Automatic lighting function" and can be viewed using LC095 "Automatic lighting function".
–CF194 "Automatic wiper function" and can be viewed using LC096 "Automatic wiper function".
–CF035 "Rain/light sensor" and can be viewed using LC044 "Rain/light sensor". –brightness value
–request to automatically switch on dipped headlights
–tunnel detection
–night/day detection
Rain and light
sensorUCH
–type of windscreen (heat reflecting or tinted)
