Trailer Wiring Harness Installation - 2010 Honda Pilot

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How to Install a Trailer Wiring Harness on a 2010 Honda Pilot


Today on our 2010 Honda Pilot, we will be installing the tow ready; custom fit wiring with seven pole connector, part number 118253.For you 00:00:12 to install, weve first going to go ahead and show you the mounting options for our new seven pole connector. Our first option, take the seven pole connector, put it up to the rear bumper fascia at the knockout and then trace out the socket of the connector. Once we have it traced out with our yellow paint marker, we will then go head and take a rotary tool and cut out this section. Now with the cut out, we can the go ahead and take the seven pole connector and mount it directly to the rear bumper fascia without removing the manufacturers knockout.This can be done by simply using the self-tapping screws. Next we will go ahead and remove the seven pole connector and the self-tapping screw and show you how to remove the knockout and secure the seven pole connector in position using a seven pole bracket. Our first step will be to go ahead and cut out the manufacturers knockout.

Using a utility knife, we will go ahead and cut the tabs that secure it in place. Then we will cut the bracket and behind it.Two easily available options for mounting our seven pole connector using a seven pole bracket will be the Draw-Tite seven pole mounting bracket, part number 18138 or the Pollak seven pole universal mounting bracket with slotted attachment points, part number PK12711U in conjunction with the Pollak seven pole bracket hardware, part number PK11926.For our application we will be using the Draw-Tite mounting bracket along with self-tapping screws. Once we have it lined up, we will then go ahead and take our paint marker and mark out the attachment points where it lines up on the bracket. Then we can go ahead and remove the bracket and seven pole connector and using a couple of pliers or vise grips, secure the two together and use the self-tapping screws to mount the seven pole connector directly to the seven pole bracket.Once you have it secured, were then ready to go ahead and install the seven pole bracket and connector back into position and we will mark out the attachment points. Now that we have these attachments points, because its not a straight shot, I recommend, go ahead and make a couple of pilot holes.

Well now go ahead and remove the rear bumper fascia push-pin fasteners.To remove the fasteners, well pry out in the center and then remove the fastener completely. With both of them removed, we can then pull back on the fascia to gain a little easier access behind the fascia. Now well go ahead and make our pilot holes. Once our pilot holes are made, well go ahead and put the seven pole bracket and connector back in position and then secure it with the self-tapping screws.Now, though we have our bracket secured, were ready to go ahead and install the wiring for our seven pole connector. The wiring will route from the manufacturers tow port above the tail pipe on the drivers side over to our seven pole connector.

Before we can route the wiring, well need to first remove the weather protective cap on the manufacturers tow port connector.Then you can use a flat blade screwdriver to walk it off or a pair of pliers to pull off the cap. Note, over time these can build up with some debris and become very difficult to remove. Once removed, we can now go ahead and take the new wiring harness that was supplied with our tow ready custom install kit and plug the grey connector directly into the manufactures port. Then we will run the other end of our wiring harness to the back of the seven pole. There we can make the connection with the seven pole and lock the grey locking tab, securing our wire to our seven pole connector.Next we will go ahead and secure the wiring harness that we just routed.

We will feed it behind the fascia bracket and then secure it with the black zip tie provided with our install kit. Now with everything routed and run, we will go ahead and cut the access from our zip tie to clean up our install look and reinstall the push-pin fasteners. Next we will move inside the vehicle, then we can open up the interior access panel on the drivers side.Then we will remove the interior door to gain access to the manufacturers wiring behind the interior door. The grey plug and black electrical loom 00:04:24 with the blue tape around it is the manufacturers tow port that well connect our converter box to. Once we have the converter box connected and stored, well go ahead and reinstall the interior door and close the interior access panel on the drivers side.Next well need to locate the manufacturers auxiliary fuse port. It will be just forward of the rear cargo compartment and we can remove the fuse cover panel with a flat-bladed screwdriver. Once removed, well then need to remove the fuse panel cover. Well pry down on the lower locking tab, pull the cover up releasing the lock on the top, and then setting it aside. Next we will start installing the fuses.Our first two fuses will be the red 7.5 amp fuses. The third fuse will be a yellow 20 amp fuse. Next we will install the two relays provided with our install kit; making sure that we install the spade 00:05:22 terminals into the correct positions. Now with both relays installed, well go ahead and reinstall the fuse panel cover in the interior trim 00:05:30 panel. Next well go ahead and move to the engine compartment.Well locate the manufacturers fuse box next to the battery. To remove the fuse box cover we will press on the three locking tabs and pull directly up. Then well locate two fuse positions; one, for a 20 amp fuse and the second, for a square 30 amp fuse. Well go ahead and install our 20 amp fuse first and then our 30 amp fuse. Now with all our fuses installed, well go ahead and reinstall the cover and were ready to hit the road.That does it for the install of the tow ready, custom fit vehicle wiring harness with seven pole connector, part number 118353 on our 2010 Honda Pilot. .


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Info for this part was:

Employee Joshua S
Video by:
Joshua S
Employee Nicholas E
Test Fit:
Nicholas E
Employee Cole B
Installed by:
Cole B
Employee Sue W
Video Edited:
Sue W

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