Owner`s manual

I6-03923

6/30/10

Installing Electronic Control and Wiring Harnesses

(See Figure 8, Drawing C2-04310)

Step #1 Find a suitable location for the Electronic Control Unit Assembly (ECU Assembly) C2-

04227, (ECU is C4-03879) in the cab. A good location is over the transmission with the

bracket bolted to the floor or to the underside of the dash. CAUTION: Do not mount unit

in the deployment path of the air bags.

Step #2 Install the Power Harness B4-04221, Figure 10, Item 1 in the engine compartment. This

harness includes a black box that contains a solenoid for turning the main ECU power on

and off. The box also includes a 125 amp fuse for protection of the main power wiring.

Install the harness with the black box located close to the battery. Do not attach the four

wire lugs to the battery until all other wiring is installed. Attach the wiring harness to

existing wiring, brackets, or other non-moving parts in the engine compartment. Do not

attach or get the wiring harness near heat generating components. Find a location

on the firewall to run the wiring through. An existing opening with a rubber grommet is

preferred. Most truck manufacturers provide an opening for this purpose and locate it

near the fuse box under the dash.

Step #3 Install the Motors Wiring Harness B4-04222, Item 2. At the rear of the truck on the

driver’s side find a suitable location to mount the bracket, Item 97, to hold the plugs at

that end of the wiring harness. This stainless steel bracket does not need to be painted.

Use the holes in the bracket to locate (2) 3/16” diameter drilled holes to mount the

bracket to the truck. Make sure the location is easily accessible and within reach of the

power cords attached to the auger and spinner motors. Do not locate the plugs in an area

where snow, mud and ice accumulate from tire spray. Run the harness along the truck

frame beneath the deck and into the cab. Assure that the wiring harness does not contact

any sharp objects and is not located too near any heat sources.

Step #4 Plug the ends of both wiring harnesses into the back of the ECU unit in the cab as shown

below.

Step #5 Plug the auger and spinner power cords into the plugs on the Motors Harness. Connect

the positive and negative wires to the battery in the engine compartment.

Step #6 Make sure that no one is near the D-ICER prior to turning the power on. Check out the

function of the unit per the “Operation” section of this manual.

Figure 7

Power from

Engine Harness

Power from Engine Harness

Auger plugs on

Motor Harness

Spinner Plugs on

Motor Harness

Control Plug from

Engine Harness