вот четко и понятно написано в книжице:
"CARGO LAMP, COURTESY LAMPS AND DOME LAMP
Circuit M1 from the IOD fuse (fuse F9) in the fuse
block supplies power to the cargo, courtesy lamps and
dome lamp. This circuit is HOT at all times. The
ground path for the lamp is provided in three different ways.
One way is through the door jamb switches. Circuit
M2 connects to the door jamb switches from the courtesy and dome lamps. The switches are connected to
ground circuit Z1. When a door is opened, the plunger
in the switch closes, completing a path to ground.
The second way is through the liftgate switch. Circuit M2 connects to circuit M4 at the cargo lamp.
Circuit M4 connects to the liftgate switch. The liftgate switch connects to ground circuit Z1. When the
lift gate opens, the plunger in the switch closes, completing a path to ground.
The third ground path is through the headlamp
switch. Circuit M2 is spliced in with the headlamp
switch. When the operator turns the headlamp switch
to the dome lamp ON position, a ground path is
provided through the switch."
т.е. плюс на этих лампах висит всегда, а земля к ним доставляется тремя путями:
через концевики дверей, через заднюю дверь и через головной выключатель.
|