The supply for the front courtesy lights (
G10) and
the rear courtesy lights (G25 and G26)
arrives directly from the battery (maxifuse J/B1 for B5)
through fuse F10of the junction
unit B1.
They are switched on with a direct earth
signal (on permanently) to pin 1 of the respective courtesy lights,
or through the go ahead - to pin 3 - due to the closing of the switches
in the respective doors:
I16 and I17 for
the front doors; I18 and I19for the rear doors.