Boss Snowplow RT3 EXT, Installation Instructions Manual

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g032929
Figure 21
1. Black power/ground cable 4. Red fused wire
2. Brown wire 5. Red power/ground cable
3. Red/white fused wire
24. Connect the brown wire to the negative (-)
battery terminal (
Figure 21 ).
25. Connect the free end of the battery cable to the
positive (+) battery terminal (
Figure 21 ).
26. Connect the red, fused wire and the red/white
fused wire to the positive (+) battery terminal
(
Figure 21 ).
27. Mount the truck-side, wire harness plow
connector to the lower part of the bumper using
the control harness mounting bracket (
Figure
22 ).
g032930
Figure 22
1. Control-harness mounting
bracket 3. Power/ground connector
2. Plow connector
28. Mount the black and red power/ground
connector to the control harness mounting
bracket (
Figure 22 ).
29. Mount the relay pack to the inside of the engine
compartment using a sheet-metal screw (
Figure
23 ).
Note:
Ensure that the relay pack is mounted
in the upright position.
g270624
Figure 23
1. Relay pack
30. Locate the vehicle option connector and align it
according to the table below:
Note:
If your vehicle is not listed in the table,
use the standard orientation.
Note:
If the vehicle option connector is not
properly oriented, the lights on the plow do not
function correctly.
Models Orientation
Standard Orientation 1992 and newer
Ford models
1988 and newer
GM models
2003 and newer
Dodge models
Dodge models
with a 4-headlight
system
1. Red/yellow wire
2. White/yellow
wire 3. Red/yellow wire
4. White/yellow
wire
Reverse Orientation 1987 and older
GM models with a
4-headlight system
1987 to 1991 Ford
models (9004 bulb)
1994 to 2002
Dodge models
with a 2-headlight
system (9004 bulb)
1. White/yellow
wire
2. Red/yellow wire 3. Red/yellow wire
4. White/yellow
wire
31. Connect the red/white wire to the battery
according to the table below:
Note:
If the red/white wire is installed
incorrectly, the low beams do not illuminate
when the plow high-beams are on.
15