Group 30 Electrical System—VNL, VNM
Design and Function
Lighting System
W3000595
1
Headlamp
2
Hood
3
Mounting/Adjust Screws (9 total)
4
Spring Clips
5
Seal
6
Rear Access Panel
7
Locking Ring
8
Wire Harness
9
Grommet
10 Turn Signal Bulb
11 Headlamp Bulb
12 Turn Signal Cover
13 Mounting Screws
The lighting system consists of switches, connectors,
wiring and lamp assemblies. All lights in the system are
wired from the power source, through a circuit protector
at the Truck Electrical Center, and to a switch.
Headlights
The VN Series headlights are of a new design. The
right and left headlights are on separate circuits. Each
is supplied power from the battery, through a fuse, and
controlled by the headlight switch and dimmer switch.
The low beam circuit is tied into the Daytime Running
Lights circuit. Wiring for the headlights passes from the
cab interior to the chassis through the wiring pass-through
on the right side of the cowl.
The headlight bulbs (11) can be changed by removing the
rear access panel (6), which is held in place by two clips
(4). The bulbs for the parking lights and turn signals (10)
are also changed by removing the rear access panel (6).
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