Trailer Wiring Harness Installation - 2008 Honda Civic

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How to Install a Trailer Wiring Harness on a 2008 Honda Civic


Today on this 2008 Honda Civic we are going to install part number 118420 from Tow Ready. This is our T-One wiring harness. First, we are going to get inside the trunk area. We will show you the layout of the T-One connector. The yellow wire goes to the driver side, so does the red and brown wire. The green wire will go all the way to the passenger side. :20

Just use simple clamps to hold the cover up into place. Next, we will remove the threshold panel right here. We will remove the panel right here by removing these two fasteners. You should be able to pull it out enough to get to our connection points. We will then start making our wire connections. :40

The connection for the red and brown wires will fit right here. Make sure they match up so you know you have the right part. Snap this back into the tail light and take your factory harness and plug it back into the T-One. Now we will deal with the yellow wire, it will be your turn signal circuit. Pull this tab out and it comes apart. Plug that into our T-One connector and the T-One connector into the tail light. Next we will install our ground. We will use this factory ground right here. We are done with that side, now lets take our green wire and run that across to the passenger side. Repeat the same process with that wire. This will be our connection point for our green wire. Next we will find a place for our modulite. We will adhear it to the backside of the body work right here. We will take a second here to zip tie our wires up and take care of the slack. Snap our threshold back in place. 2:01

We have our wiring installed, I will show you how to use it. Pull it out, set it on this seal right here because it is thick enough that it will not hurt it when you shut the hatch on it. Just make sure you stay away from the latch right here, and pull out what you need to reach your trailer hitch or trailer. When you are not using it you can keep it safely stored away with the spare tire so it will not be sitting outside all the time getting corroded up. With that, that will finish our install of part number 118420 from Tow Ready.


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