Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
Item # 118549
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Quickly and easily install a 4-way trailer connector on your Ford Focus with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.
This custom-fit T-One connector plugs into your Ford Focus's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the tail light assemblies to access this harness.
Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery and insert the provided fuse.
Once installation is complete, the 4-way flat connector will be stowed within your trunk or 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 Ford Focus'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 Ford Focus operate.
With a ModuLite, your trailer's lights will be powered without overloading your Ford Focus'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.
Video of T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
Today on our 2012 Ford Focus well be installing Tow Ready T1 connector, part number 118549. Now well begin by opening the tailgate and remove the vehicles taillight housing assemblies. To do this here on the drivers side well remove the black plastic cover and pull back the insulation liner to access the plastic wing nut holding the taillight in place. Theres another wing nut in here that well also need to undo. With both wing nuts undone we can remove the drivers side taillight. Well repeat this process to remove the passenger side assembly.
Were also going to go ahead and remove the rear threshold as well put our wiring harness behind it. Now that we have our interior undone here on the drivers side well need to pass the T1 connector through the vehicle. To do this well cut a slit in our rubber grommet here where the factory wiring harness passes through. We can then feed our T1 connector in and reinstall the rubber grommet. Well now plug our T1 connector into the factory wiring harness.
Youll notice here on the drivers side youll have a white wire with a ring terminal this is the module light ground. Well use the supplied self-tapping screw to run into a body ground connecting our white wire to it. Now with all that done here on the drivers side we can go ahead and reinstall our taillight remembering to plug the other side of our T1 connector into the taillight assembly. Well now route our red and green wire to the passenger side where we can again cut the rubber grommet, pass our T1 connectors through, and reinstall the grommet. After making our connections here on the passenger side we can go ahead and reinstall our taillight.
With that done well need to connect our black wire included with the harness to the module light. Well need to find a suitable location where we can pass the black wire through the body to run it up under the hood. Youll see there are some body plugs here well cut a small slit into the body plug and pass our black wire through it. Well strip the insulation off the black wire as well as the red wire on the module light box. Now using the yellow butt connector, connect the two together.
We can now go ahead and reinstall our interior pieces. Make sure to keep the wiring out of the way of any of the connectors as youre reinstalling. Well now move underneath the vehicle where we can now route our wire up to the battery. Now youll want to make sure you stay away from any moving components such as your suspension or hot components such as your exhaust while routing this wiring. Here at the battery well cut off the access black wire and attach the second of the two yellow butt connectors. Well now take our fuse link, clip it in half and strip back the insulation. Well attach the large yellow ring terminal to one side and the other side well attach the yellow butt connector thats already been attached to the wire. With that done were now ready to connect the yellow ring terminal to the battery. Now there are several ways to do this, were going to go ahead and clip our ring terminal to make it slightly smaller where we can go around the positive terminal post and tighten it down. We can then install our 10 amp fuse included with the harness which will complete the installation of our Tow Ready T1 connector, part number 118549, on our 2012 Ford Focus.
Average Customer Rating: 4.4 out of 5 stars (28 Customer Reviews)Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.
by: Michael L.04/22/2015
I installed a trailer hitch on my 2013 Ford Focus so that I could pull my two kayaks on a small trailer. There are two ways to install trailer lighting, either buy a basic harness and splice in the factory harness or you can buy this product and plug and play. I am not excited about tearing in the factory harness as there is no way to go back to the original if you have to or choose to. The way this harness is designed if at some point you decide to remove the wire harness it can be done easily. The installation is pretty easy, the video is very helpful as the instructions are not very clear. The only problem that I experienced is that during the installation you have to cut through the grommets behind each tail light and the connectors are pretty large so it is a little tough pushing the connectors through the grommets. I would recommend that when you add the ground that you remove the paint for the body panel. It might work at first if you don't but over time the ground will stop working and you will be frustrated as to why your trailer lights don't work. One other alteration I made is I wired my power inside the car, I am not saying that the video is wrong, there are more than one way to get the power from the battery to the harness; however, I was not wildly crazy about running power under my car so instead I ran it inside, just my preference. There is a grommet right behind the glove box that you can get through pretty easy, there are video's on youtube to pull power for an amp to the battery . 187279
by: Spence J.03/31/2015
This must be the fifth or sixth time I have ordered from etrailer and have not been disappointed. One of the best things about etrailer has to be the installation videos. Before my son and I started we watched the hitch and wiring installation videos and even took my tablet to the garage as a reference. Pricing and delivery are more than competitive and because of the support I prefer to give them my business. 182068
Great products that fit properly. The instructional videos are great. We installed a Draw Tite tow hitch and trailer light hookup on our 2014 Ford Focus. Everything fit properly, and went together just like the video showed. No surprises. 215117
by: Capatin Tom03/01/2016
Nothing but great as for a review for the team at etrailer. There was a slight problem with the delivery, but it was quickly resolved by their team and I had everything delivered far sooner than I had expected. The installation was a snap and I was impressed with the system they provided to fish the bolts thru the frame. My first thought was "yea, sure" when I saw what was in the package, "this ain't going to work". I was wrong, it worked like a charm. I have designed tooling for the Air force. and this deserves an award for it's simplicity. 239065
by: Ashleigh Heinichen05/23/2013
great wireing harness 81713
by: Tom H.05/27/2014
Only complaint is that the instructions for a slit in the taillight grommets didn't work that well. The plugs were to big to squeeze through without ripping tho holes even bigger. It would have been easier and keep a better seal if you cut the grommet from the edge to the wires. I did this to run the trailer plug to the mount on the hitch. It isn't ripped and the grommet seals pretty well. 132729
by: Terry L.02/12/2017
You knew the order was here before I did! Install went well. The video was right on. I was surprised by how dirty everything was inside. Cleaning took a lot of extra time. I made a few miscues that the video made to look easy. Practice and a clean area makes perfect. Works great! Thank You. I will recommend your products in future. 341066
by: Jimmy Mac11/01/2012
It's a new 2013 Ford Focus and I was not in any rush. The wiring took me about 3½ hours, start to finish. I ran the wire inside the car and had trouble finding a place to exit the firewall so I exited the floor under the clutch, through a grommet and up the firewall to the battery. You need the 12 volts to run the 4 prong trailer plug. Works great 58619
Easy install overall. I had to grind the heads of the carriage bolts down to make them pass thru the opening of the frame. Also had to grind (or you can cut with a bandsaw) the piece the carriage bolt passes thru to get it to pass into the frame. Would be nice if these pieces came pre-ground/pre-cut to the right size. 179231
by: Glenn L.08/20/2014
Good product, ran the battery power suppy wiring through the (inside) of the car though, so the wiring isn't exposed to the harsh Minnesota and Wisconsin winters. Wiring install diagram (included with wiring) is a bit vague, and install video makes it look somewhat easier than it really is. 147802
by: Danny T07/30/2014
I am not a mechanic, but the video makes this installation very easy. This saved me so much time. I couldn't be happier with etrailer.com. All of my purchases and installs have gone BETTER than expected. I highly recommend buying this. Traler lights are working great. 143453
by: William E.09/07/2016
Many thanks for your interest. Your product was very easy to install. A year later, it is still working beautifully. It is nice to purchase a product that actually meets expectations. I would most definitely recommend your product to others. 292084
This product works well and installs very easily. The only difficulty in installing this kit is running the 12V power wire to the battery. I wish the interior design of the car would have been more forgiving, but it wasn't too bad. 88992
After a few months one of the lights died. Measured voltage with a meter and found to be all over the place. Now a bit over a year later the entire module is dead. Avoid this product! 153293
by: Dave G.03/28/2014
Great service, Great product, easy to install. Overall I am extremely pleased with etrailer.com and the products I purchased. thank you etrailer 122623
by: Martin R08/01/2013
Harder than ever to install the wiring. Running power to battery and removing the lenses took most of the time. Hitch was easy. 92684
by: Matt P.07/18/2016
wire harness went on as instructions detailed , everything works perfectly , would recommend and will shop with E-Trailers again. 273491
by: jay r05/29/2015
Videos were very helpful, took a while for a first intstall but mostly because it is a car and all i have is jacks. lol 198573
by: Larry W06/02/2016
Installed perfectly last summer. No longer working. Disappointed! Traler lights fine on other vehicles. 256099
by: Sam b06/10/2015
Service was excellent I would definitely recommend this seller for your towing needs. 202183
by: Jerrel W07/05/2016
My order came in 2 days every thing was correct I would recemend etrailer 268253
Installation is pretty straight forward. Very clean and tidy look. 270061
by: Dave Horner06/23/2016
Worked perfect, easy installation, has been problem free to date! 264299
by: Keith B08/13/2016
Was shipped and fits exactly as expected. Install was no issue. 283405
Worked great. power wire to battery a pain but doable. 286036
IT STILL WORKS GREAT YET AFTER 1 YR 346601
by: Kevin P`02/08/2013
Easy quick install 65429
Easy enough. 179233
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