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Trailer Wiring Harness Installation - 2006 Subaru Outback Wagon

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How to Install a Wiring Harness for a Trailer on a 2006 Subaru Outback Wagon

Today on this 2006 Subaru Outback Wagon we will be installing sequent wiring harness part number 118461. We are in the rear cargo area of the Outback Wagon and we are going to locate the wiring port that our harness is going to plug in to. The port on this particular vehicle is going to be located directly behind the driver side panel nearest the tail light. To gain access to that we are going to need to remove a few pieces of the interior. As you can see I have already removed the spare tire and the flooring. But we will also need to remove the rear threshold section and the styrofoam flooring piece which has one push pin here and two clips at the forward side. 00:38

We are also going to need to remove the screws that are holding down the tie down points, one here and one here. We are also going to remove this top pillar section and there is another Phillips head screw right behind there. Then we can show you where the port is located. Now we have removed all of the interior pieces and we have got the panel pulled back. If you look just inboard here behind the tail light, taped to the main wiring harness is the plug that we are going to be plugging our harness into. It is open ended and is covered in blue tape and we are going to cut back the blue tape and we are going to take our wiring harness and plug those two together. You can see our harness has an end line fuse holder so you do want to make sure that the fuse is in place. 01:21

We want to take the modulite portion of the wiring harness. We just want to adhere that to the inside of the vehicle somewhere. I would recommend against the back wall. With the modulite box adhered we can start reassembling the interior of the vehicle. We actually feed the loomed end of the 4-pole right underneath this channel in the styrofoam. We have actually got a grommet at the bottom of the spare tire well that we can cut a slit into and route our 4-pole through there as well if you would like it to be underneath the vehicle. I think that is what we are going to do with this installation today. If you do choose to use the grommet as a routing option you so want to make sure want you put some silicone or something around the slit you made in the grommet so that no exhaust fumes can enter in the vehicle. From there we can reinstall the spare tire, make sure our 4-pole is secure underneath the vehicle, and our installation will be complete. That will conclude the installation of part number 118461.

Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Andrew K
Video Edited:
Andrew K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Patrick B
Video Edited:
Patrick B
Employee Chris R
Video Edited:
Chris R
Employee Nicholas E
Test Fit:
Nicholas E
Employee Randy B
Test Fit:
Randy B
Employee Shane H
Test Fit:
Shane H
Employee Kathleen M
Video by:
Kathleen M
Employee Michael B
Video by:
Michael B
Employee Cole B
Installed by:
Cole B

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