Volkswagen Passat 2006 Service Training page 26

Onboard Power Supply
Rotary light switch
In the midline and highline version of the onboard power supply control unit, the light switch is a
semiconductor element. It is therefore only used for activation. The lights are controlled by the onboard
power supply control unit output stage.
Rotary light switch without automatic
headlight control
The light in the light switch is illuminated when
terminal 75 is switched active.
Rotary light switch with automatic
headlight control
The symbol for automatic headlights is
illuminated red when the light switch is set to
"automatic headlight control".
When the switch is in the "automatic headlight
control" position and the rain and light detector
sensor has detected night-time or darkness, the
symbol will be illuminated green.
When the switch is in the "automatic headlight
control" position and the rain and light detector
sensor has detected day-time or light, the symbol
will be illuminated light green.
26
You will find further information on
use of the rotary light switch and the
warning lights in the Passat 2006
operating manual.
S340_019
S340_020