Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Toyota threw me a curve ball with 2 metal support brackets installed where the trailer hitch should go. Apparently they did this in 2015, as they do not show up in 2014 videos - anyway, I removed these and that allowed access to 6 pre-installed nuts that the supplied hardware screwed right into. I also ordered the wiring kit which plugged in with no issues. I've already made 2 trips with my small utility trailer, plus plan to haul bikes with it, also. The hitch looks great (but a little dirty due to lots of rain brought in by Hurricane Harvey). 428507

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Great instructions, easy to follow and very thorough. Good quality harness1655334

by: Matt02/12/2019

2018 Mazda 3

The hitch and brake light harness installed without issue and works flawlessly.604333

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Just as described and very easy to install, applicable installation video is very helpful, thanks again and God Bless1590253

This wiring harness was a fairly easy install on a 2018 Mazda 3 HB Sport. Wiring to the lights is very simple with only removing 3 panels in the hatch and easily hidden. Running 12 volts to the unit is the hardest part. Although the instructions indicate it must be connected directly to the battery I did not like the idea of having a hot wire running on the outside of the car or making a hole through the firewall. For a Mazda 3 a simple way to provide power is running the positive wire to the fuse box in the driver's side foot well. There is a 10 amp fuse for the sun roof and I just used a low profile mini Add-A-Circuit product to provide power. My model does not have a sun roof so there is no overload issue but it is easy enough to not open/close the sun roof with trailer lights on. The added bonus here is that it is only powered when in ACC or ON so any trailer wiring issues will not drain your battery. This probably voids some warranty but since the circuit is fused at 10 amps it is identical to the instructions and just as safe. For ground I just used the already tapped M6 point that is there for factory hooks. Installed this way no permanent modifications have been made to the vehicle.635980

Mike L.

5/1/2019

The primary reason why the wiring harness is set up to pull the power for the trailer taillights directly from the vehicles battery is to protect the vehicle from short circuits that might occur in the wiring on the trailer. Connecting the harness according to the instructions serves to keep the trailer wiring fully isolated from the delicate and expensive to repair vehicle wiring. The fuse in the power wire itself is designed to protect the taillight converter from a short in the power wire, not to protect the vehicle from shorts.

by: Carl12/23/2021

This wiring harness looks like it is well made. I am very happy with it and think it was a good purchase. I will say, though, that installation was difficult because harness had to be in the trunk area, while a wire had to be run up to the positive terminal in the front of the car. Running a wire under the car for that distance required a lot of planning and effort. The problem was how to secure it so it would not be damaged by road debris and then, how to get it into the trunk area around the moving rear suspension. I did it, it turned out great, and I was really proud of the job, but it took many hours.1230140

Sierra K.

12/27/2021

It does take some work to route the wire. You can take a look at a 2012 Camry installation video to see if we used the same route as you took:

Helpful Links

tv-install-trailer-wiring-2012-toyota-camry-c55567.aspx

I just installed in my 2018 Toyota Corolla. Plugging it into the tail lights was very easy, but having to run the power wire up to the battery was a bit of a pain. The kit came with everything needed to install it and the YouTube video was very helpful also. I tested it after install and everything works but I haven’t towed a trailer yet.

-Mark G.796684

Mark

5/14/2021

Great

Instructions were easy to understand and harness installed with no problems.1558181

Great product. Easy installation with good instruction and support. The only problem I had had was squeezing the electrical connectors together. Probably a crimping tool would help. I would recommend etrailer highly. Thx110256

Patrick B.

12/18/2013

A proper crimp tool is definitely need to complete the install. Without a good crimp, the power line will be prone to losing connection and the trailer lights will cease to function. We have a small electrical basics kit that includes a crimp tool, see part HM51010.

Installing the Draw-tite hitch on my girlfriend's cute 2014 Mazda 3 was a breeze after studying the videos. No need to remove the muffler or raise up the car at all. After having the mounting bolts in place using the handy wires and resting the hitch on about 8" of wood blocks, my girlfriend helped in keeping the hitch steady while I bolted it onto the car. It took us about 25 minutes in all. Then came the wiring nightmare. The first part involving the connectors to the car's tail lights was fast and simple. The second part which involved sneaking the included power wire out of the trunk, through the car, then through the engine firewall and into the engine compartment was enough to drive a good man bad. Honestly, especially when meaning to only tow a small trailer with about four lights on it, is it really necessary to go directly to the battery as a power source??? And I wasn't about to run the power wire along the underside of the car. Anyway, after spending about an hour trying to figure out how I was going to sneak the supplied power wire through the engine compartment firewall, I got out my drill, picked a drill bit slightly wider that the wire, bore a hole on the driver's side and into the engine compartment, hooked the wire to the battery using the supplied wired fuse, sealed the drilled hole with the supplied black silicone sealant, put the car back together, and finally was done. As I wrote, installing the hitch took 25 minutes to complete. Installing the wiring was a four hour drama I'm so relieved to be done with I'm having a double shot of rum in my rum punch, and after that I'm having another one. I'm giving this four stars because after all that install time the trailer lights work just fine. I just wish the install hadn't wound up being such a nightmare.661289

Disappointed that I had to run separate wire from battery back to trunk. Must be something to do with Toyota because I have purchased two different ones from you for Honda and did not have to do this.
Other than that, fine.186890

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by: Don01/09/2017

2013 Toyota Camry

Very good web site. The trailer receiver and wiring assembly worked perfectly. The videos on installation are invaluable.331251

Don

1/9/2018

Proper reviews are after a year. No complaints. Quite happy with the product still.

by: Judy S01/16/2017

Toyota Camry

I am thrilled with the trailer ball & hitch I purchased from you one year ago for my Toyota Camry. I have used the hitch numerous times to rent U-Haul trailers rather than trucks (which you have a mileage fee on) and saved more than triple the cost of my purchase.

As the mom to a college aged daughter, I was the one to help her & her friends move out of the dorms, into their first shared apartment & delivered the gently used furniture we found online to furnish their first digs.

Most recently I helped them move to a furnished shared flat and was able to haul their furniture to both a consignment store & a donation center so that their finds can live on and make other families happy.

The products I purchased from etrailer.com still looks and perform like new. Thank you, Erica, for your professional advice and support. I highly recommend etrailer.com to everyone I meet!

Sincerely,
A grateful Mom
335928

Phone salesperson was great. I had figured out what I needed on the website but had a few questions. Very helpful with product and shipping options. I asked if I could get it before the end of week and she worked it out with very little extra cost. I got delivery as promised. Appreciated the follow up from shipping to confirm it had shipped and the follow up that I received.

I've installed it on my 2012 Camry and works just like I hoped. Just snapped in the connectors and it was done. Now I'm legal when hauling my trailer. I did not want to run a power wire through my firewall so I also bought an auxiliary power plug that I wired to the trailer light converter. Whenever I need the trailer I just run the power to the power receptacle in my console through the drop down back seat.

Thank you!151912

Very pleased with e trailer. Ordered on Thursday and arrived on Friday. I ordered a hitch and wiring kit. Everything arrived as expected and installed easily. The online videos were very accurate. Great experience. Will buy from e trailer again.509802

Easy install. Good overall product. Towing 6x10 trailer with golf cart.309230

Marc B.

11/3/2017

Working just fine. I will definetly purchase more products from you in the future.

Nicely made kit. Installed without a problem. E-trailer's online installation video was especially helpful. Running the wire from the trunk to the battery in the engine bay was the most tedious part. This would have been a lot easier if I had access to a lift as opposed to just raising the side of the car up with floor jacks and stands and using a creeper while on my back.569058

by: Glenn02/12/2018

The rear tail and signal light wiring installed very easily along with the placement of the control module. Since this unit requires a voltage source, the only more time consuming portion was running a 12V line from the back trunk area to the battery in front. . 475128

After about 2 months of working perfect the running lights stopped working on this harness. The only reason for such a high review is due to etrailer CS. They took excellent care of me and have sent me a replacement harness. We shall see how long this one lasts.460339

by: SherylC07/02/2019

Quality harness at a very reasonable price and fairly simple to install. I highly recommend etrailer.com.665699

Sheryl C.

7/3/2020

Perfect! Never had a problem with my setup. Works like a charm!

It was simple to install on the FJ, helps if you have someone with small hands to get the back plug for the harness. In the instructional video it shows the battery wire being ran under the FJ but I ran the cable along the main wiring harness on the drivers side. 346161

Overall, I love these kits, but this one requires a stand-alone power line be run from the battery, which. Yikes. I certainly wasn't expecting, but from what I understand has more to do with my vehicle than the harness itself. It was just WAY more work than I was expecting when I ordered this. To be fair the product description does mention the need to do that. A little research revealed that Curt's "recommended" way of accomplishing this involves running the power wire under the chassis down the length of of the car, something I wouldn't do on a dare.

The last one I had was just plug, plug, plug, plug and go. Be aware that won't be the case with this model.357111

The custom trailer wiring kit C55567 is absolutely one the best products i've ever bought for my car. It was super easy to install works great with my jet ski trailer. will definitely recommend this product!!850363

Very easy installation took me less than 25 minutes. Note to people installing it them selfs. Just run a power cord inside the vehicle along the side wall underneath all of the molding. There’s enough room for a small screwdriver to lift the molding to hide the wires. I ran mine through the firewall were there were already wires going to the front of the car. I did not like the idea of poking a hole through the rubber grommet especially being in New York that’s just a recipe for water moisture and disaster for your spare tire wheel well. But very well constructed783110

Product came pkgd. well. I was a little surprised that the product was not self powered from the tail light piggy back wiring. I had to run a wire up through the car, through the firewall and connect to the battery. Wasn't a hard process though, toughest part was getting through the firewall...not an easy task on new cars. Once it was all hooked up everything worked just as it was supposed to. Everything was included in the packaging (wiring wise) to complete the hook-up.88167