7
16992200 Rev E
HaRness InsTallaTIon
The SnowDogg has two separate harnesses for ease of installation and troubleshooting – a control harness
and a light harness. They can be mounted separately. In the case of trucks with central hydraulics or
existing auxiliary lights, either harness can be omitted without affecting the functionality of the other system.
Control Harness
The plow side control harness has been preinstalled. The truck side control harness is routed through the
grill, by the battery, and through the firewall to the controller. It is preferable when possible to keep the
plow connector on the drivers side to make mount/dismount easier and faster.
Control harness Diagram
CAUTION
Keep all connectors greased with dielectric grease on a regular basis to minimize corrosion & potential damage or wear to the pins.
It is critical that all electrical connections be tight and secure. Loose connections on the plow circuit can cause overheating,
component failure, or intermittent operation.
1.
Route the CONTROL HARNESS through the truck grill, by the battery, and through the firewall. Some
trucks will require drilling a ø1.50" hole through the firewall, while some will have holes provided (usually
plugged). Check your truck Owner’s Manual for details. If the hole is drilled it is critical that a grommet be
used to prevent damage to the wire harness.
2.
Mount the MOTOR RELAY in a convenient and secure location on the battery side of the vehicle using
the included self tapping screws.
3.
The small RED WIRE from the CONTROL HARNESS is connected to a small terminal of the MOTOR
RELAY.
4.
The small BLACK WIRE from the CONTROL HARNESS has two leads – one is connected to the other
POSITIVE (+)
TERMINAL
NEGATIVE (-)
TERMINAL
TO ACC POWER (+
12V)
BLACK
RED/WHITE
BLACK
RED
RED 4GA
BLACK 4GA
TO CHASSIS OR
BATTERY GROUND
TO CONTROLLER
THROUGH GRILL
SEE INSTRUCTIONS
10A FUSE
TRUCK FIREWALL
DRILL Ø1.5" HOLE AND
PROTECT WITH GROMMET
16160300 CONTROL HARNESS