Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
Quickly and easily install a 4-way trailer connector on your Jeep Liberty 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 Jeep Liberty'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 beneath your Jeep Liberty, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.
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.
ModuLite Powered Tail Light Converter
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 Jeep Liberty'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 Jeep Liberty operate.
With a ModuLite, your trailer's lights will be powered without overloading your Jeep Liberty'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 Jeep Liberty well be installing the Tow Ready T1 connector, part number 118554. First to begin our installation well open up the rear cargo door. Well need to remove the fasteners that secure the taillight housing in place. Starting here on the drivers side, well go ahead and remove the two fasteners and then gently pry the taillight housing away from its current position, being careful not to break the alignment tabs underneath. Now well go ahead and remove the taillight assembly by pressing on the locking tab for the connector and removing it from the assembly. Well go ahead and set it aside for reinstallation later.
Next well go ahead and repeat the same process on the passengers side. Now well start making our connections. With the yellow and brown connector well take the socket and plug it into the connector on the drivers side, plugging in line with the manufacturers wiring. Then we can take the red and green wire connector along with our four pole and feed it down between the bumper cover and the body, and or sheet metal of the vehicle. Next well go ahead and attach the power wire for our converter box.
Using the black wire coming out of the converter, yellow butt connector provided with our install kit well go ahead and crimp the two together. Then well take the extra length of black wire provided with our install kit, strip back one end and install it into the butt connector and crimp it down. Now with that done well go ahead and take a clean cloth and clean off the sheet metal just below the taillight assembly. Once its cleaned we can peel back the two way adhesive and secure the converter box directly to the sheet metal. Now well go ahead and take our power wire and follow the same route as our red and green wire connector and four pole down between the bumper cover and the body of the vehicle.
Next well go ahead and take the white wire with the preattached ring terminal which will be the ground wire for our converter box, and secure it to the body of the vehicle, using a self-tapping screw. Locating an area where the sheet metal doubles up can make for a great ground location. Now with the ground secured, well go ahead and take our taillight assembly and lug it into the opposite connector of our new Tow Ready harness. Now we can go ahead and reinstall the taillight assembly. Now with the drivers side reinstalled well go ahead and get underneath the vehicle and start routing our wires over to the passeners side.
Keep in mind when routing your wires you want to stay away from excessive heat, such as the exhaust, or moving components such as steering or suspension. As we route the red and green wire connector along with our four pole that will go to the center of the vehicle and down to the hitch, as were routing them along well use zip ties to secure it up underneath the vehicle. Now that weve got our red and green wire connector over on the passengers side well go ahead and feed it up behind the bumper cover and the body of the vehicle below the taillight assembly. Now with our wire secured underneath well go ahead and cut off the excess from the zip ties to clean up our install look and move back to the passengers taillight assembly. Here well go ahead and take the red and green wire and zip tie or secure it to the manufacturers wiring. Then we can make our connection with the T connector and the manufactures wiring. Now for our extra wire well go ahead and bundle it up and use a zip tie to secure it, and then take the socket and plug it into the back of the taillight assembly. With that done well go ahead and reinstall the taillight assembly. Next well get back underneath the vehicle and start routing the power wire up to the front of the vehicle into the engine compartment and up to the battery. As we route our wire well go through the frame when possible and zip tie as necessary. When routing through the frame well use a pull wire, or in this case well be using a piece of air tubing to assist in routing our wire. Now that weve got the wire routed up toward the front of the vehicle well need to add a couple of loom clamps to assist in securing our wire. Well be using the Redline metal loom clamp, part number A0500 along with a couple self-tapping screws. Now that weve gone through the second loom clamp well go ahead and feed it up into the engine bay, and then pull it up to the top of the engine compartment. Here we can take a zip tie and secure it, and then route it over to the battery. Now well go ahead and remove the battery cover and prepare our fuse holder. In this application when preparing our fuse holder, well go ahead and cut the fuse holder off center to leave enough length so that we can travel up through the positive battery terminal cover. After we cut it, well go ahead and strip back both sides and on the short side well add the yellow butt connector and secure it. The long side well feed up through the battery cover and then secure our ring terminal to it. Now that weve got the ring terminal secured well go ahead and remove the nut on the positive battery post, install the ring terminal and then resecure the nut. Now well go ahead and finish routing the fuse holder and reinstall the positive battery cover. Next well take our fuse holder and the black power wire and cut off any excess from the power wire. Then well strip it back and attach it to the yellow butt connector. Once weve made this connection well once again go ahead and wrap up the yellow butt connector and wire with some black electrical tape. With that done well go ahead and install the fuse and the fuse cap. This will complete the install of our Tow Ready T1 connector, part number 118554 on our 2012 Jeep Liberty.
Average Customer Rating: 4.7 out of 5 stars (45 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: John K06/26/2014
Save the extra time it takes to send a wire to the positive terminal of my TV, this was my second vehicle to install a wiring harness. This kit, along with etrailer.com's How To videos, is a breeze! Highly recommended! 137775
The installation video found on your site couldn't of been any better! I ordered the curt hitch and Tone wiring harness for my 2012 liberty, delivery was fast and installed hitch in 10 min in my garage! 83751
by: Adam P.05/21/2012
I hooked it up by myself just fine. Not clear on which directions to follow. The paper directions says to disconnect the negative battery, the online doesn't. I disconnected my battery on a 2008 Jeep Liberty and now I am having computer problems that the dealership cannot figure out. It says "error" on the odometer and might cost me a pretty penny. Very unhappy about that. 41089
by: Aaron H.05/24/2012
Wow! This thing is awesome. Not only was it easy, it looks like a factory installed harness. There are no cobbled wires or nasty splices anywhere. Love it. The installation videos on this site make etrailer the best! I hate hard to follow goofy written instructions. P.S. If it had little shrink tubing for the battery wire splice that would have been even better. 41541
this wiring harness was easy to install and is working just fine after a year on the road. I did have to run an extra wire to the brake light at the rear because the brake light did not work as per instructions said it would because of the way the jeep is wired. My was different then the earlier ones. etrailer is the best place to buy. 289940
Installed this on my 2008 Jeep Liberty Sport. It was very easy to install and of good quality. The only thing I changed was, I used a couple heat shrink connectors instead of the ones that came with it to help a little bit better against moisture and corrosion. Overall, I am very happy with my purchase 256848
by: Glenn L.06/28/2013
Wiring harness was quick and simple plug-in at the rear tailights but the most challenging was running the power line from the rear of the 2010 Jeep Liberty to the engine compartment. It took a little longer than I expected. All parts needed were in the kit for installation. 86552
by: Sam W.01/27/2015
The hardest part of wiring the light was getting the wire to the positive post of the battery. All together it took me about 3.5 hrs, I did it by myself. Other than that, everything works fine. I am very pleased with the result. All lights on my Jeep and trailer work. 171417
by: Ken G11/14/2016
I received the product in a timely manor, product is exactly as I had ordered and the price was right. They provide colored - easy to follow installation instructions specifically for my vehicle, making this a question free installation. 316506
by: Jerry C.07/17/2016
Installed it myself. It needed minor tweaking to get the bolt holes to line-up. I had a shop install the wiring harness. Everything seems fine but I haven't needed to use it yet. It's first use will come within the week. 272798
by: S McC05/13/2013
Priced right. Speedy delivery on time. Easy instructions and on-line video made for easy installation. Trailer hitch and wiring harness for 2011 Jeep Liberty to tow small boat and atv trailer, bike rack etc. 79994
by: Harvey M.05/23/2015
Love the hitch it was great and fast shipping. Only problems i had was cheap connectors with the wiring harness and i had no luck at all getting the power wire through the frame. Still a great product in all 195038
by: Uncle Al07/06/2012
Easy to install and the lights worked ... what more can you ask for? I just hope it lasts longer than the previous two that were dealer installed and only lasted one year each. 46988
by: Mike B05/10/2012
The wiring harness was easy to install and cost less than half of what the dealer wanted to charge for a Mopar wiring harness. I would definitely recommend this product. 39998
by: Cliff H09/08/2013
Wiring harness went in great no problem with tail lights.Wire from the battery to the box in rear sucked maybe it was the car but they should find a better way..... 98917
by: Dave R.04/22/2013
Very simple to install with clear instructions. If you are not a reader, just search youtube for the video that shows you how. Order with no worries. 77382
by: Ron R.09/15/2012
The quick connections make the job easy. Would like to see a better video on how to run the hot wire to the front of vehicle. Great value for the money. 54767
PERFECT!!!!!! no problem, took about one hour to install, easy to understand instructions. has worked every time I have used it never was it failed. 313346
by: Stephen DeStefano05/16/2012
This company has terrific products and the instructional videos make them a cinch to install. They are now my go to company for all my trailer needs. 40739
Very happy with the hitch I ordered from you. The installation time was accurate as well as easy. Delivery was quick. Thanks, D.A. 72502
by: Doug D.02/12/2016
Arrived quickly. Would be very easy to install. The jeep I was putting it in wanted to be difficult. Once I got it done it works great. 237689
by: Bill H10/23/2016
This was one of the easiest installations I've ever done. Everything fit, no hassles. Works like it's supposed to. Great product. 309856
by: Omar f.03/28/2012
Plug and play. Installation video couldn't have made it any simpler. Everything was there to install. Perfect fit and measurements. 35408
by: Randy C.04/16/2016
Used this product for a year now and is still working fine. No rust or corrosion on the connections. I'm pleased with it 245578
by: Steve L.09/18/2016
Order was quick to arrive and lnstalation was easy I recommend etrailer for all trailer accessories and more 296202
This product works perfectly for my after market trailer hitch. Very easy to hook up and 100% satisfied. 288240
products installation went in easy. the video was very informative. everything worked as designed. 191053
Good hitch and wiring. Easy to install. I did it in less than hour and I am 70 years old. 67765
by: bob ed05/31/2013
fast shipping as always,everything I get from etrailer fits like a glove,ill be back 82797
by: Harry L08/30/2013
Just installed today. Works perfectly and perfect fit for my vehicle. 97665
by: Ross Burns11/04/2013
Everything was good. Great product. Great customer service. Thanks 106290
You tube video made the installation easy. I plan to shop again. 123487
Fast shipping, super easy to install, took about 40 minutes. 68322
Good quality. Fit perfectly. Great on-line instructions. 224736
by: richard h04/06/2016
just what I was looking for and fast shipping thank you 243139
by: Gregory k05/19/2014
A good wiring harness kit Easy to install no problem 131260
looks very well made and is fairly easy to install 74729
by: Kevin S.05/12/2012
Had it installed in 20 min. great produ ct 40219
by: Busy Body11/04/2012
Great delivery and easy installation! 58824
by: Bob K06/11/2016
great product, quick shipping 260386
by: Richard O07/15/2014
Everything worked as expected 141311
by: Mark S05/14/2012
Great product, fast shipping. 40301
by: Glen stokes06/08/2015
Worked well. Easy to install 201667
by: john s04/11/2012
very easy to install 36834
by: Anthony j04/12/2012
Works great!!! 36927
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