80D-4V1 MR-376-X76-80D000$020.mif
80D
UCH
Vdiag No.: 0F
Side lights:
The side lights are switched on directly using the lighting stalk, via the passenger compartment fuse and relay box.
This function lights all the side lights (front and rear) as well as the number plate lighting.
Dipped beam headlights:
The dipped beam headlights are switched on directly using the lighting stalk, via the passenger compartment fuse
and relay box.
This function lights only the two bulbs providing the dipped headlights function.
Main beam headlights:
The main beam headlights are switched on directly using the lighting stalk, via the passenger compartment fuse and
relay box.
This function lights only the two bulbs providing the main beam headlights function.
Rear fog light:
The rear fog light is switched on directly using the lighting stalk, via the passenger compartment fuse and relay box.
This function lights only the rear fog lights.
Hazard warning lights:
The "hazard warning lights illumination request" signal from the hazard warning lights switch is sent to the UCH,
which controls the hazard warning lights.
This function lights only the hazard warning lights. The UCH also manages the illumination of the hazard warning
lights in the event of impact detection.
Indicators:
The "left-hand or right-hand indicators illumination request" signal initiated by the driver using the lighting stalk is
sent to the UCH, which controls the left-hand and right-hand indicators.
LIGHTING
Fault finding – Role of components
