/
Tekonsha/
Custom Fit/
Trailer Hitch Wiring/
4 Flat/
Powered ConverterItem # 118781
Retail:$51.96
Our Price: $37.75
You Save: 27%To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Orders above $50 qualify for Free Shipping
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Powered ModuLite reduces strain on wiring system.
Features:
Specs:
Installation
This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind an interior trim panel in your rear cargo area, on the passenger's side. Once you've plugged in the connector, you will have to route the harness through the jack storage compartment to the center of your vehicle. Before plugging the included 7-way socket into the tow harness, locate the fuse box under your hood and insert the provided fuses.
Once installation is complete, the 4-way connector will be stowed in your rear cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.
With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.
Installation Details 
2018 - 2020 Honda Odyssey
California residents: click here
Video of T-One Vehicle Wiring Harness with Upgraded Circuit Protected ModuLite HD Module - 4-Way Flat
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Speaker 1: Today on our 2019 Honda Odyssey you're going to be taking a look at . I'm going to show you how to install the T1 vehicle wiring harness with upgraded circuit protected ModuLite HD modules. Part number 118781.This is gonna be one of the most important parts of your wiring. This is your module box and what this does is protects your factory wire from any back feed from your trailer if your trailer has a wiring issue. One nice thing about this Tekonsha box is all the wires come into one end here and they attach to a circuit board.On the bottom here there is potting material. That potting material fills the hole inside of this.
What that potting material is gonna do, it's gonna cut down on any vibrations that may cause wiring to come disconnected from the circuit board inside. If this happens to come loose inside the vehicle, maybe move around, again that potting material is gonna hold those connections really well.You're gonna have your four volt connections. It's gonna give you all your lighting functions to connect to your trailer. You're gonna have a fuse holder that is attached to your wiring and then this is gonna connect directly to the factory wiring on the vehicle.This is a very simple installation. It plus right into the back on the inside of the vehicle on the driver's side right next to the fuse panel.
That plug is right there to connect to. You're also gonna have your ground wire. Everything fits very nicely. You're also gonna have your fuses to help complete your installation.What our wiring looks like when it's installed. This wiring is going to live inside of the vehicle.
It's gonna give you your proper lighting functions to safely tow your trailer. It's gonna give you your right turn single, left turn single, brake rights, running lights. Again, this is gonna live inside of the vehicle so when not in use, you can simply roll it up and store it in your cargo area here or you can stuck it right here in your pocket. When you are ready to use it you simply pull it out, pull out what you need and you're gonna lay it over top this rubber seal. You want to make sure you stay away from any points of contact like this here between your hatch and your vehicle, itself.Once you got out what you needed, simply close your hatch and you're ready to hook up to your trailer.
This is gonna have an included dust cap. It's gonna help keep your connections clean of any dirt and debris.Now that we've gone over some of the features of what comes in the kit, let me show you how to get installed. First thing we need to do to start our installation, get access to your rear cargo area. On your driver's side you're gonna have a panel right here. We're gonna pop that off and you're gonna see a fuse panel and you should see a blue plug. We're gonna pull this blue plug out like this. On the end of our wiring harness we're gonna have a blue plug. Those two are gonna be fitted together. Before doing that, what we're gonna do is we're gonna take the four full end of our wire. I'm gonna route this through and then down underneath here. Let's see if I can. Take our plugs, push them until you hear it click. We're gonna need to secure our box.There's not really anywhere we can get in there to stick it with a double-sided sticky tape that they give you. There's not really any good flat spots. There's one right here against this panel we might be able to get to. We can get it in there. We take our double-sided sticky tape here, peal off one side, press it into place, make sure it sticks good. We'll take our box and we're gonna stick it right inside here. On the backside of this panel there's a nice flat spot. Get that pushed into place.I'm gonna take my self-tightening screw, quarter inch socket. You want to make sure this is on metal. It's kind of hard to get anywhere on the body itself, but this bracket here that our fuse panel is mounted to is attached to the body of the vehicle, so that will be good enough to mount our ground wire to. So, we'll take our self-tightening screw that comes in our kit, put it right there.Lager 15 amp fuse. We're gonna insert it into the holder on the wiring harness. You're gonna have a slow blow fuse that looks like this. It's gonna go in spot 12, which is gonna be this one year. Go ahead insert that. And you're gonna have two micro fuses that look like this. These are gonna go in spot 10 and 11, which are gonna be these bottom two spots here. Take these . Gonna slide these in. Once you got those in, go ahead and tuck our wires. Our panel put back in place.Now we'll test out our wiring using part number I26. Left turn. Right turn. Brake lights. Running lights. That'll do it for a look at and installation on a T1 vehicle wiring harness with upgraded circuit protected ModuLite HD module, part number 118781 on our 2019 Honda Odyssey.
Average Customer Rating: 4.7 out of 5 stars (18 Customer Reviews)
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required. Powered ModuLite reduces strain on wiring system.My husband and his dad watched the included youtube video and installed the hitch in a very reasonable time, without any issues. The installed hitch looks great on my Odyssey! 694171
Happy with the product, and happy with the fast delivery. 665805
Really like the OEM like look of the trailer. Install was super easy and the videos were great guides. Highly recommend. 677453
I ordered my products on line and was able to find everything I need to install my trailer hitch. It arrived well packaged and will all the right parts. I have not installed the unit yet, so cannot comment on how it fit. 661316
The installation was a breeze, assisted only by two paint cans I was able to install the hitch on my 2019 Odyssey in under 30 minutes. The instructions for the wiring harness was a bit off but I called and their sales rep was extremely helpful. On their instruction video on youtube I submitted comments on what I did to install the wiring harness (TEKONSHA 118781). Very easy project to complete. 553377
So far, so good! The online instructions are slightly easier to understand than the ones printed with the order. But, the end-all be-all is the video. Watched it three times, and installation was a breeze. This also applies to the trailer hitch, which I bought in the same order. 670734
The installation videos were fantastic! Fast shipping. 719271
Quick shipment quality products good packaging price was right!! Recommend 715804
The hitch and electronic control box arrived as scheduled. The written instructions left a little to be desired, but the online videos were a big help. After viewing the videos, I was able to easily install the hitch and electronic control box. The hitch looks very nice on my 2019 Honda Odyssey. 697248
This company is great I live in Texas and i requested 3 day shipping and I got it in 48 hours. They even called to verify my address because it didn't show up as valid. So I get this robust hitch and the wiring kit. It was super easy to install the 4 flat adapter, there is even a ground bolt inside the odyssey fuse compartment so no drilling is required. 682853
Extremely easy to install. Literally plug inn and it's ready to go. Thanks you! 679533
Super easy to install and took about ten minutes. All works well. No complaints or concerns. Great product and simple to install on 2019 Honda Odyssey EX-L. 679002
Great product! Fit was perfect. Direct plug in with one drilled grounding point. Extremely easy to install and took less than 20 minutes. Works perfect. 678273
Product wiring was screwed up, wiring going into the converter box did not match wiring coming out. etrailer quickly sent a new one and it was fine. Two stars for wasting a lot of my time wondering why the lights were not functioning properly and having to prove they were wrong and request a new one. The company's service is 5 stars so no problem there. 674613
Received my Curt Class II trailer hitch very quickly which was appreciated. Fit as advertised and easy to follow instructions that were a little different from what was presented on YouTube. The enclosed instructions were actually easier. By following the enclosed instructions I was able to mount the hitch by myself with little difficulty. I had ordered a Curt hitch from ETrailer nine years ago and was satisfied with the product then as I am now. One item that I believe helpful is to note that there are two bolt fish wires included in the parts package so there is no need to buy others. The fact that they were included was not mentioned in any of the product write ups which resulted in my purchasing something I did not need. The hitch although visible on the vehicle does not destroy the look of my Odyssey. Happy!! 671470
I purchased the wiring harness for my 2019 Odyssey Minivan. It works great and fits perfectly. 663302
Excellent directions & diagrams Online etrailer videos on hitch selection choices and installation are excellent, also. 601962
Simple to install. The video instruction was great. 586305
Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?
Do you have a question about this Custom Fit Vehicle Wiring?
At etrailer.com we guarantee:
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.