Group 30 Electrical System—VNL, VNM
Design and Function
Switches and Controls
The switches are of a new design. A number of switches
have been given new symbols, for example, the switch
for the fog lights and the electric heated side mirrors.
All panel-mounted switches feature heavy duty terminals
and locking mating connectors. Rocker switches feature
illuminated legends with embedded LEDs to indicate
ON
or
OFF of electrical devices.
Note: Switches are illustrated from insertion-side view.
The switch for the engine brake is different depending
on which engine brake is installed. With the Volvo or
Cummins M11 engine brake, there is a single switch with
3 positions:
OFF, LOW, and HIGH. With other engine
brakes, there are two switches: one with 2 positions,
ON
and
OFF, and another with 3 positions, LOW, MED, HIGH.
Switch
Function
Switch
Internal Switch Logic
Headlamps
/Parking lamps
W3000575
W3000576
W3000582
Heater/AC Blower
Motor Control
W3000575
W3000576
W3000688
Dimmer Control
(Dash Illumination)
W3000685
W3000686
W3000676
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