Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
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Quickly and easily install a 4-way trailer connector on your Toyota Corolla with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.
This custom-fit T-connector plugs into your Toyota Corolla's wiring harness, which is located behind the driver's-side and passenger's-side interior trim panels in your rear cargo area.
Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your 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 tail light converter is built into this T-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 Toyota Corolla's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines 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 Toyota Corolla operate.
Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.
Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.
Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.
Video of Curt T-Connector 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 2011 Toyota Corolla, well be installing the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, Part Number 55542. To begin our install, well first open up the rear cargo door and remove the spare tire cover. Next, well need to remove the rear threshold. To remove the rear threshold, well remove two pushpin fasteners and then gently pull up on the rear threshold unlocking the fasteners underneath.Now, well go ahead and set the thresholds aside and remove the two fasteners securing the carpet liner on the driver side. To remove the pushpin fasteners, you can either use a flat play screwdriver or a trim panel tool. After removing the fasteners here on the driver side, we can go ahead and pull back the carpeting and well expose the manufacturers wiring going in the back of the tail light assembly.Now well move over to the passenger side and repeat the same process.
Well remove the two fasteners and pull back on the carpeting. Now, starting on the driver side, well go ahead and press on the locking tab of the wiring connector for the tail light assembly and remove it from the assembly. We can then take the manufacturers wire and plug in to our yellow and brown wire connector from our new wiring harness. Then well take the other end of the T-connector and plug into the back of the tail light assembly.Next, well take the green wiring connector brought over to the passenger side and repeat the same process. Well press in the locking tab of the manufacturers wiring going into the tail light assembly, remove it and plug it into the T-connector, plugging in the other end of the t-connector into the back of the tail light assembly.Now, as we route back over to the driver side, well use a black zip tie provided with our install kit to secure our wiring.
Next, well go ahead and take the black converter box and adhere the two-way adhesive provided with our install. Well remove it, cover the two-way adhesive and install it to the back of the converter box; and then remove the other side of our two-way adhesive, here below the tail light assembly out of the way.Ill go ahead and take one more zip tie and secure the four-pole wiring here to the manufacturers wiring keeping it out of the way. Now, were ready to go ahead and reinstall the interior trim component. With everything reinstalled, we can now go ahead and show you how to use the new four-pole connector. Well simply take it out of the spare tire well and route it down to the hitch or accessory.
Be careful to stay away from the ledge as pitching the wire often, the latch can harm it; however, the weather stripping is thick enough that it wont.Simply close the cargo door on it and pull out as much as the four-pole connector as needed. Then once were finished, well go ahead and open up the rear cargo door, roll the wire against the door, down to the spare tire well. There you have it for the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, Part Number 55542 on our 2011 Toyota Corolla.
Average Customer Rating: 4.8 out of 5 stars (55 Customer Reviews)Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required. Converter is made using SMT to ensure superior performance.
by: Jennifer p07/05/2014
I originally had a harness that you needed to splice wires together. It seemed like way to much work. I found this harness after doing some hunting online and I have to say it was well worth the extra $ I had to pay for it. Plus it was so easy to install.... Especially for a woman :) I had no trouble at all doing it myself. Thanks to the installation video on the website. Great product & great price. The delivery of the product didn't take but a couple days which was also great. 139369
by: Ava P.05/28/2013
(Oops. Provided the wrong review for this product). My neighbor hooked up the wiring and used to do it all the time, so it was just a matter of pushing it under a rubber overlay at the back under the rear door, and under the carpeting to curl up in the opening for the tail lights. When I do hook it up, it should be a simple matter to attach the loose plugs to the trailer, but, haven't done it yet! 82237
by: Kevin M.12/10/2012
This trailer light kit is fantastic. High quality, easy to install, over-current protected and works light a charm. It just plugs right in with no splicing or soldering involved. Automatically converts the four bulb tail light setup (2 for each side) of the Corolla to a two bulb setup of of a normal trailer. This works great and adds value to my car. I could not be more pleased with this. 61037
by: Mark McIntosh06/07/2013
I am 71 years old. this wiring harness was a piece of cake to install even for an old pilgrim like me (lol).took me about 20 to 30 minutes( but I took my time )..The only downside was the written directions was kinda vague(but then again I'm old. So I went by the video on your website and that was so helpfull...Thank you for a good product 83716
by: Allan W05/08/2013
The trailer hitch's fit was excellent. Also the wiring harness installed very easily. My only problem was that the weld nuts in the frame were very rusted and it took quite a lot of time with a wire tube brush to get them cleaned out so that the bolts would install. Once they were clean, the installation was every easy. 2007 Corolla S. 79455
Purchased the Corolla trailer connector, the product arrived as indicated and installed easily. It also worked exactly as claimed. I ordered the product over the phone; Pat took care of my order and she was terrific. I would use Etrailer again and recommend it to people I like. thanks 96617
by: Paul H.04/19/2013
I purchased a T-Connector kit #55542 for a 2004 Toyota. What a piece of cake to install, 35 min. to complete. 25 min. taking trunk lining out and back in, 10 min to connect wiring. These people have it together also received the kit in 3 days not the usual 7 to 10 76916
by: Terron J.03/24/2011
Works. Instructions could have been better. Could have come with some more zip ties, or better style of zip ties. Some of the cables could have been longer. Could have come with some replacement trunk liner fasteners because you will inevitably break some. 10310
by: Thomas K.05/24/2014
Product installed as expected, instructions included and using online video were good, took less than an hour and was an easy install, worked great. Worth doing yourself for saving the money. Good hitch and easy boattail hookup. Good product. 132310
by: Mike J07/01/2011
Very simple to install. No splicing involved. Just open the trunk liner, disconnect both tail light connectors, and insert the new adapters. Secure with provided zip ties and two way tape then put the liner back in place. Takes about five minutes. 18362
by: ray s05/27/2011
after speaking to a service rep on the phone about installation, he was very helpful. I found installation to be a breeze. The trailer hitch and wiring were top notch I would recommend it to anyone. 15558
by: Allan W05/08/2013
The wiring harness was very easy to install. The instructions for the removal of the threshold were not very specific, but we figured it out. The rest of the installation was very easy. 79456
WOW! ThisTrailer lighting system was shipped out right away and delivered by UPS. After arriving home I had this installed in my Corolla in 15 minutes. I wish everything was this easy. 75723
by: Richard Q.04/27/2013
This could not have been more simple. Delivery, video and product quality were tops. Installation took 12-minutes and they work as advertised. I'll definitely use you guys again. 78141
by: Mike B08/18/2012
Curt could not have made it any easier. No cutting or splicing. Just follow the directions. Disconnecting the connectors can be a little difficult until you figure out how they work. 52198
Works perfectly Easy to install with no wire-cutting or splicing into electrical system. Perfect match for factory wiring - just unplug a connector and plug in adapter between. 1981
Installed this product on Toyota Corolla 2013. Took me 20 min to complete. Follow the video provided at etrailer.com. Thank you for the quality product and support. 148514
as with the hitch that was purchased, the installation was easy, and as the connector shipped with the hitch, the project was totally completed in 35 minutes. thank you 22148
by: mike m.12/29/2011
SIMPLE AND QUICK TO INSTALL. NO WIRE CUTTING OR SPLICING. I HAVE ORDERED A TRAILER HITCH AND A WIRING HARNESS FROM ETRAILER AND I AM VERY HAPPY WITH BOTH. THANKS. 28848
by: Travis R.10/28/2012
Easy install (20 mins.), instructions were great. Definitely take the time to run the wiring behind the interior as directed, it fits perfectly. Great product !! 58230
by: Erik M.06/24/2014
Explicit details for installation made this an absolute breeze. This is a plug and play system, no tools are required, and it couldn't be laid out any simpler. 137422
by: Harry W06/16/2012
Process took about 10 minutes after reading the instructions. Included photos showed exactly where everything was located. Works perfectly. Thanks 44443
I HAVE PURCHASED FROM E-TRAILER SEVERAL TIMES AND HAVE ALWAYS BEEN PLEASED BY THE PRICE, QUALITY, AND QUICK SHIPMENT. I WILL BUY AGAIN. 23460
EASY TO PLUG IN AS SOON AS I FIGURED HOW TO GET PLUG APART. HARD TO SEE IN TRUNK. I SHOULD HAVE STARTED ON RIGHT SIDE TAIL LITE FIRST 53073
by: Bill I.01/03/2014
Installation was really easy - it took a little longer than I thought but everything went together without a problem. Great product. 111789
by: Robert K.08/13/2012
Trailer lights on my Tacoma stopped working so I picked up this wiring harness and with a simple installation got the lights working. 51583
by: Tayson W.06/23/2014
The product works well. Easy installation in my Corolla 07. This kit made it so I didn't have to do any splicing or wiring myself. 137175
by: Don F.09/11/2014
Excellent design, removes all the trauma of "Wiring" your lights to a trailer. Simple and works first time up. Thanks, 150744
by: John Dow12/17/2010
Great service Thanks for the great service. I received my harness just in time for the week end. Thanks again. John Dow 4308
by: Gary P.05/12/2011
Fantastic service and products. Super reliable and totally professional. I am a repeat customer and will continue to be. 13724
Arrived on time and in great condition. It was the exact item I needed for hooking up my new trailer lights! Thanks! 106069
by: George D.09/17/2012
Followed the instructions and installed it in just a few minutes.All wires are out of the way till you need them 54922
by: carey f10/17/2014
perfect fit and easy install.thank you for quick delivery for my mistake,thank you amanda r for your help 156563
by: Bob Jackson03/13/2012
Completely satisfied. Quick free shipping and great products. Everything as promised. 33810
by: Peter B07/15/2012
My son installed the trailer wiring on the 2007 Corolla without any problems. 48031
by: Jeffrey butterworth12/25/2013
Very happy with the hitch and the ease of installation of hitch and wire kit. 111115
This installed very easy. Only took 10 minutes with very little effort. 15041
Arrived on time, install was easy, I like not having to cut any wires. 67354
by: Neal A09/13/2012
I Have never installed anything as easy as this. WELL WORTH THE PRICE! 54648
Product was as advertised. Grade of wiring is minimal but functional. 14194
Product was easy to install. Great products! Fast shipping! 70459
by: Mel S.08/11/2011
Easy install just follow the instructions, worked first time. 21610
by: John C.01/31/2012
Best wiring job I've ever done took 10 minutes unbelievable. 30752
product came in when expected and the items requested 49270
by: Rick C.11/15/2013
Installed in 15 minutes with no problem s. 107465
by: Mark K09/18/2013
Quick and easy to install Works great 100436
by: Samuel L.02/17/2014
Relatively easy to install. Works great. 116777
Much easier than cutting and splicing 36357
by: Frank K03/29/2011
Easily installed, great directions. 10667
by: matt r03/22/2012
Excellent fit. Installed easily. 34800
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