3. Roughly 2 ft back from the 10 pin connector of the
ESS Vehicle Harness located on the truck, you'll find a 4
pin connector for the 4 Pin Control Harness (See Figure
1-11). Plug one end of the 4 pin control harness into the
ESS Vehicle Harness and route the other end through
the vehicle engine compartment to the cab of the vehicle.
ESS VEHICLE HARNESS
(INSTALLED ON VEHICLE)
Figure 1-11
CAUTION
DO NOT drill any holes until a thorough visual
inspection is performed to determine that the
area around the hole to be drilled, on both sides
of the firewall, is clear of any obstacles such as
brake lines, linkage or vehicle wiring.
INDICATES A HAZARDOUS SITUATION WHICH,
IF NOT AVOIDED, COULD RESULT IN MINOR OR
MODERATE INJURY.
4. If an existing 3/8" hole is not available, look for an
area to drill that satisfies these conditions:
• DO NOT put a hole in such a spot that will force the
wiring harness, when installed, to interfere or be
routed behind accelerator pedal, brake pedal, clutch
pedal, parking brake or associated linkage.
8
14 PIN
CONNECTOR
CONNECT
4 PIN CONTROL
HARNESS
10 PIN
CONNECTOR
5. Drill a 3/8" hole through the vehicle firewall.
CAUTION
Keep wiring harness away from moving parts,
sharp edges and areas of extreme heat to avoid
electrical failure and fire.
INDICATES A HAZARDOUS SITUATION WHICH,
IF NOT AVOIDED, COULD RESULT IN MINOR OR
MODERATE INJURY.
6. If installation is for a plow only run vehicle control
harness through the 3/8" hole. If a tailgate salt spreader
is also used with the plow run the long leg of the Y-
harness only through the hole.
7. Install female connector to all harness ends following
steps 8-11. If installation is for a plow and salt spreader
plug the salt spreader and plow control harness into the
Y-harness under the hood and secure excess wire.
8. Remove blue pin lock from female connector. Push
the pins on the end of each of the four wires into the back
side of the connector (the end with recessed light blue
seal). (See Figure 1-12 for pinning).
NOTE: The connector pin locations are labeled on the
side opposite of the red secondary lock tab.
CAUTION
The four wires MUST be inserted into the proper
holes in the connector. Failure to place the wires
in the proper holes in the connector can result in
failure of the transmitter.
INDICATES A HAZARDOUS SITUATION WHICH,
IF NOT AVOIDED, COULD RESULT IN MINOR OR
MODERATE INJURY.
YELLOW
WHITE
1
Figure 1-12
9. Verify wire placement by connecting the ProControl 2
Plus harness. If wire colors do not line up, verify pin
placement (See Figure 1-12).
SECONDARY
GREEN
LOCK TAB
2
3
4
BROWN