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

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

Item # C56217

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Retail:$49.96

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Custom Fit Vehicle Wiring

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C56217 - Powered Converter Curt Custom Fit Vehicle Wiring
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  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • Powered Converter
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56217 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.


  • All Info
  • Reviews (445)
  • Q & A (131)
  • Videos (12)
  • Photos
  • Why etrailer?

Curt Custom Fit Vehicle Wiring - C56217

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Tow harness with 4-way connector plugs into connection point in rear cargo area
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the interior trim panel in your rear cargo area. Once you've plugged in the converter, insert the included 10-amp fuse into the integrated fuse holder.


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.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


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 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 vehicle 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.


Curt SMT Circuit Boards

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.



56217 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces 56034



C56217 Installation InstructionsInstallation Details C56217 Installation instructions

This Product Fits The Following Vehicles

2008 - 2019 Toyota Highlander

2008 - 2019 Toyota Highlander without factory tow package - no converter under dash



California residents: click here


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.




Video Transcript for Trailer Wiring Harness Installation - 2018 Toyota Highlander

Speaker 1: Today on our 2018 Toyota Highlander we're going to be taking a look at and showing you how to install the Curt T-connector vehicle wiring harness, with four pole flat trailer connector, part number C56217.Here's what our wiring's going to look like once it's fully installed. It's going to provide us with a four pole flat trailer connector, giving us all the required lights to get down the road safely and within the law. Such as our brake lights, turn signals and our taillights. Whenever we're not towing, our wiring is going to stay on the inside of our car. We're not going to have to worry about any damage to our wire because the weatherstripping here is going to provide enough cushion to where the hatch closing will not cause any damage so long as we stay away from the latch itself. Just take our wiring, wrap it up, lift up on the floor covering under here and we can store it right by our spare tire tools.Our wiring kit is a specific kit made for our Highlander.

It's going to be a pretty straightforward installation. We're only going to have a few panels on the inside of our car that we're going to have to take off and a few connections to make. Our kit is going to come with all the necessary fuses and hardware to get everything in place and we're not going to have to worry about cutting or splicing into of our factory wiring. Now that we've seen the end result and know where our wiring's going to stay, let's show you how to get it installed.To begin our installation, you're going to come to your rear hatch and we're going to take any kind of floor coverings like this mat and we're going to fold them out of the way so that we can get access to the very back section here. We're going to lift up on this panel and we are going to remove it for now and set it aside.

The plastic cover panel over here on the driver's side, we're going to remove as well. That's going to give us access to this panel and compartment right here. It's held in by clips so if we just grab the edge right here and pull up, it'll pop out of the clips and we can remove it and set it aside. Towards the front right where our spare tire tools are, we're going to have this carpet covering on the floor and we're going to remove these push pin fasteners. Here you grab flathead screwdriver or a trim panel tool, we're just going to pop them out.

There's going to be a total of seven of these spanning across the back of the vehicle.All the way over on the driver's side there is is going to be a 10 millimeter nut holding that plastic panel with our spare tire tools in place. You're going to want to grab a 10 millimeter socket and pull that nut out. The panel is only held in with clips now so we're going to start here over on the side and we're going to slowly work our way to the other side of the vehicle. Just want to grab the panel and start pulling upwards. We're just going to release the clips.

Once we have it loose, pull it out and set it aside.Now if we grab our wiring harness, it is going to be two separate pieces. We're going to start with the side that has our convertor box attached to it. If we come to the very back of the vehicle we're going to be looking for a connector that's going to match the one that's on our wiring harness. Just towards the driver's side from the center at the very back of the threshold we will have that connector right here. We can take our harness and we're going to go ahead and plug it in. You want to make sure it locks in so give it a nice quick tug to make sure everything's in place.And then now we're going to need to find a suitable spot for our ground wire. We can mount our ground wire here with the eyelet on it on any existing ground or we can take the provided self tapping screw and screw it directly into some sheet metal. Since all this going to be covered up and we're not going to have to worry about seeing anything, I'm going to take this provide self tapping screw and screw it directly into the sheet metal on the bottom of the trunk. Now just downstream a little bit on our harness we will have a fuse holder so we can take the large provided 10 amp fuse and go ahead and put it in our fuse holder. Now that we have room, we don't have to worry about anything interfering we'll go ahead and put it in now.With our fuse and our ground in place, we can go ahead and find a suitable spot to mount our convertor box. Typically you want to stay away from anywhere that's going to interfere that we know where our panels are going to go. We know that our panel over here is going to mount to that stud 'cause that's where we took our bolt out so right here wouldn't be an ideal spot. I'm going to take the provided double sided foam tape, we're going to remove the backing off of one side, I'm going to push it firmly against the back of the convertor box. Once I'm sure that it's nice and adhered to it, I can go ahead and take the other side of the backing off. I'm actually just going to move some of this wiring out of the way and I'm going to stick my convertor box directly against the back of the frame here so it's nice and out of the way. Then I can take my wires and tie them to some existing wiring back here so they won't be in the way of the panels either.With this side secure and connected, we can go and grab the other end of our harness and start making that connection. The other end of our harness is going to have a four pin connector which is just going to just to the right, right about the center of where our threshold is. We can take our two connectors and plug them together making sure they lock into place and to make it easy on myself that I know that I have room on the driver's side to route my wires up, I'm going to take my wires and I'm going to route them over to the driver's side and just secure them with with some zip ties against the existing wiring back here.With the wiring in place back here we can start working on putting the panels back in. Just want to make sure that the carpet covering is on top of our spare tire tool compartment when we go to put it back in. Just line up those tabs and press it back into place. Then start putting all those push pins back in. We're going to replace that 10 millimeter nut holding the panel down. Now before we put this compartment back in, you're going to want to grab your four pole wiring and you're going to want to bring it towards the center of where your spare tire tools are so you don't lose it down there and we don't cause any damage. Also you're just going to want to watch the push pins on where you're wire's landing 'cause you want to push those directly into the wire. Now that most of everything's put back away here, let's go ahead and move under the hood 'cause we're going to have to put a fuse in place.If we come under the hood, right in front of our brake reservoir all the way on the driver's side, we'll have our fuse panel. When we push this tab here, we can lift up and remove the cover and we're going to be looking for the towing fuse that's going to be on our cover and it should have little legend to let us know where it is. If we come down to our fuses, the towing fuse is going to be right here all the way to the left but in the black section in between these two seven and a half amp fuses. We can take the provided 10 amp fuse that they give us in our kit and we're going to put it right in that spot and press it down into place. We can go ahead and replace our cover and let's go back to the back.I can take the included dust cap cover, cover up the wiring and it will sit right back here with my spare tire tools waiting for me whenever we're ready to hook up to our trailer. We put all of our floor coverings back in place and test the wiring. I got my four pole tester here, I'm going to plug it in and we can check the wiring. If you need one of these four pole testers you can pick one up on our website using part number I26. So I'm going to grab an extra set of hands, they'll run the lights and I'll verify that they're all working.Can I have the headlights please Looks good. Left turn signal. Right turn signal. The brakes. Good. And can I get the brakes and both turn signals please All right with everything looking good, we're ready to hook up to our trailer and hit the road.And that'll finish up your look at the Curt T-connector vehicle wiring harness with four pole flat trailer connector, part number C56217 on our 2018 Toyota Highlander.


Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56217

Average Customer Rating:  4.8 out of 5 stars   (445 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

- C56217
by:
2008 Toyota Highlander

They thought of everything with this set up and then some. Worked perfectly and was a snap to install. Saved a lot of money over what the Toyota agency wanted for the same thing. 575830



- C56217
by:
2015 Toyota Highlander

Ordered Curt Class 3 Hitch Receiver and custom T-connector Wiring Harness for 2015 Highlander. Order dispatched immediately Monday morning. Delivery as promised Thursday. Box was pretty badly beaten up and harness had been expelled from separate clamshell packaging. Nothing appeared damaged and all parts (except for 10 amp microbus for vehicle fusebox) were present. Video instructions for installing both parts were excellent and was able to do install in about 2 hours (don't have a lift and was working by self). Now just have to see if wiring actually works when I go rent my trailer. Thanks 405621



- C56217
by:
2018 Toyota Highlander

Received in good order and in sealed package. Will install my 2018 Highlander. GREAT... 573553



- C56217
by:
2010 Toyota Highlander

Hitch arrived w/in a week of placing the order, free delivery! Box was slightly banged up, but hitch was not damaged at all. Please note there is no interior packaging around the hitch. This was a self-install, one man job. Hint: watch the etrailer videos & other videos online as this will help a lot. I had no issues w/fitting the hitch but one of the tips I did use, was to reuse the box the hitch shipped in as support for the hitch during installation. I also used a scissor jack for final mounting to line up all bolts. I tightened to the recommended torque and was VERY pleased w/the final outcome. Passenger side under panel trim did not need trimming, drivers side did require a cutout but you can trim this smaller than the instructions detailed. Hitch looks great on my 2010 Toyota Highlander! Ordering from etrailer was easy & I would do so again, if needed. 181275



- C56217
by:
2011 Toyota Highlander

The hitch was exactly as described. The packaging of the product was inappropriate for a heavy metal product - it was loose inside a large corrugate case. In shipping it was bent, as other reviewers have mentioned. (Some wooden bracing inside the case would be more appropriate.) Fortunately I have a friend with a large vise who was able to straighten the bent section. After that, installation was relatively easy (for two people). The wiring harness was particularly easy. In use for towing a trailer, the hitch has been trouble free. 288877



- C56217
by:
2011 Toyota Highlander

The customer service, as others have mentioned, is amazing. From the initial order confirmation through product install, they were very helpful. My hitch arrived bent and after a brief call to Bill in customer service, I was up and running in NO time. The online videos were super helpful, thanks!! 130916


Comments

Thanks for the follow up!It?s awesome. Works like a charm!A friend gave me some advice that sadly I didn?t listen to though. He told me, ALWAYS remove the ball hitch when not in use. That way when you walk around the back with groceries you didn?t hit the hitch with your shin! lol Sadly last week, after a year, i had my first encounter with the hitch while carrying groceries! lol Hopefully it?s my last.

Joe M - 05/18/2015

11814

- C56217
by:
2014 Toyota Highlander

Excellent product that took about an hour to install in my 2014 Highlander. 220763


Comments

Your trailer hitch and wiring harness fit flawlessly, and I recommended you to my good friend [...] who also bought one from you. Much better price than what Toyota wanted for theirs which was in the $700 range if I remember correctly.thanks,

Steven P - 08/23/2016

20527

- C56217
by:
2017 Toyota Highlander

Great product. Installed the wiring system in about an hour and tested the lights. Very clear and concise installation instructions with accurate pictures. I recently purchased a 2017 Toyota Highlander that did not have a tow hitch and when I inquired about Toyota installing one for me, lets say the cost was obscene. So I bought the wiring kit along with their tow hitch. A very happy customer 420709


Comments

Lets just say that I AM VERY HAPPY WITH YOUR PRODUCTS. I would highly recommend them to any of my family and friends. Once again, you people continue to surprise me with this email. You really define the meaning of Customer Satisfaction Feedback !!! Thanks !!!!!!!

Carl H - 08/15/2018

42395

- C56217
by:

Excellent harness. Simple instructions, everything included, easy install. Since it is self powered I could wire in additional lights with no worries about circuit overload. This is actually the third Curt wiring harness I bought. That's all I use. It just flat out works. 576412



- C56217
by:

The hitch receiver itself is great; easy to install etc. The only glitch is the Curt T-connector harness. Item C56217 is designed to attach under the dash to activate that part of the system that is not activated in a vehicle without the tow package. The wire with the trailer connector is then attached to a pigtail next to the taillight. BUT, the instructions contained in the package indicate that both the wiring and the control box are to installed in the rear of the car. Perhaps that's true of another version of this product, but not this one. It works great when you wire it according to the manual...just not if you try to follow the instructions in the package. 130639


Comments

The harness that I received had two sets of instructions, one for a 2008-2013 Highlander, and the other side of the paper had instructions for the 2014 Highlander.The 2008-2013 instructions worked perfectly for my 2010 Highlander, which had the mount under the steering wheel.The 2014 Highlander supposedly has the mount in the back with the pigtail as you described. I dont know, I dont have this model vehicle.Make sure youre reading the proper side of the instructions when installing.

-- comment by: Benjam W - 06/30/2014

5219

- C56217
by:
2016 Toyota Highlander

Shipping was prompt. Arrival was without damage. Instructions were clear and easy to follow. Installation time was about an hour as the instructions predicted. The fit was perfect! The qualtiy seems good and the hitch looks good on my vehicle! 433334


Comments

Excellent..no problems!

Tom D - 09/17/2018

43672

- C56217
by:

The online You Tube video made a perfect compliment to making this install literally plug and play..... Great product, great service, easy install, and it worked perfectly! This is why I purchased this item from e-trailer and not Amazon....... Keep it up Zack MN 571802



- C56217
by:
2015 Toyota Highlander

This product was cleared for my 2015 Toyota Highlander, so I purchased it thinking the instructions would be clear. They were to a point. I was able to install the harness with very little trouble. When it came time to install the 10 Amp fuse in the highlanders fusebox (under the hood), there was some confusion. The instructions specifically stated that the highlander fuse box would show a "towing" fuse location and that it would be 10Amps. I don't know if this is unique to the 2015's, but the fuse location marked "towing" on mine was labeled "30 Amps". BIG difference! I called support. They promptly answered and made a couple attempts at answering my question, but being an electronics engineer it was not really to my satisfaction. They first suggested that it was marked 30 Amps because if you installed the 2015 Toyota Highlander OEM harness, it was made for 7-Pin. WRONG! No such OEM harness exists for the 2015 and the OEM install direction clearly shows a 4 pin layout. The operator went back to the technician and came back with the answer, "install the 10 Amp fuse and if it blows we'll know it's a problem!" I did install a 10 Amp fuse they supplied. Don't mistake this for a negative review. My experience with etrailer has been good in the past, and good now. I'm hoping they will update their documentation to reflect my model vehicle and appropriate technical specifications. Etrailer is the best! 172397


Comments

Thank you for the query. The products I purchased from your company works so well one tends to forget about them. I have had no issues whatsoever and they perform as intended. Thanks again.

Nogrey - 02/06/2016

16700

- C56217
by:

I purchased the trailer hitch and wiring harness at the same time. The wiring harness was simple to install, we watched the video and played it along side us as we did the job. The only thing I found was that the large white connector has to be tucked back up out the way or the 'trunk tray' won't fit back in properly. Everything went great, lights tested and worked.......and then where's my Leatherman? Looked all over for it and couldn't find it. Surely I didn't reinstall everything and leave it buried in the bowels of the car...........sure did. 456143



- C56217
by:
2017 Toyota Highlander

Great product. Installed the wiring system in about an hour and tested the lights. Very clear and concise installation instructions with accurate pictures. I recently purchased a 2017 Toyota Highlander that did not have a tow hitch and when I inquired about Toyota installing one for me, lets say the cost was obscene. So I bought the wiring kit along with their tow hitch. A very happy customer 420708


Comments

Lets just say that I AM VERY HAPPY WITH YOUR PRODUCTS. I would highly recommend them to any of my family and friends. Once again, you people continue to surprise me with this email. You really define the meaning of Customer Satisfaction Feedback !!!

Carl H - 08/15/2018

42394

- C56217
by:
2017 Toyota Highlander

I like that there is no splicing involved. Everything fits nicely. Of course the installation took me a little longer than in the video. The video may not be a 2017 Highlander as some parts look different, but it is very helpful. The installation instructions that came with the part are not as useful. The video suggest to route the wire to the trailer through the bottom of the lift gate. I found a rubber plug on the left side under the left side panel where I cut a slid in and now can leave the harness near the receiver all the time. I don't expect water to come in there but will monitor. A nice feature for the hitch would be a place to store the connector while not in use. P.S. I only got the harness from etrailer but should have used etrailer for the hitch hardware also. I was lazy and thought the competetor could do the job, but I would not recommend them. You may be lucky to find someone who knows what they do but I wasn't. They failed to re-install some of the plastic covers under the car and did not give me all the pieces they did not install back. So I had to spend time under the car and have missing pieces. One thing I noticed, however, on the trailer hitch installation video, they cut quite a bit of plastic off. I did not have to cut as much. So, before you cut based on the video, verify that it is actually necessary. 409666



- C56217
by:
2008 Toyota Highlander

This wiring harness fit my 2008 Toyota Highlander Sport perfectly! It's very easy to install, especially if you watch the installation tutorial video. It's literally plug and play. Everything you need comes with it, including the fuse and zip ties to hold everything in place. The only hard part for me was getting under the dash and tucking everything away neatly, but that's because I'm a big guy and there's not much room down there. I ran mine to the outside of the vehicle to the hitch and installed it in a mounting bracket instead of leaving the harness inside the car and pulling it out every time I need to use it. There was an extra hole that had a rubber plug in it near the tail light area where the connector for the harness is. I took the rubber plug out and ran the wiring to the hitch. I filled the hole with silicone caulking on the inside and outside to prevent any water from getting in. I also wrapped all of my connections with electrical tape. The four way has a dust cap to protect the pins from dirt and debris when not in use. I installed it on the hitch using the mounting bracket (item 18144) here: https://www.etrailer.com/p-18144.html . Looks great! I tested my connections and everything works perfectly! Great product, great price, and you save a ton of money on installation by doing it yourself! Thanks, etrailer.com, for the great tutorial and product research! 499598



- C56217
by:
2009 Toyota Highlander

This went on so easy, I thought it had to wrong. It worked perfectly. The video was extremely helpful and shows you exactly where everything is and where to attach all the connectors. Thank you so much. 439130


Comments

Excellent. Havent had any issues and would come here again for any future needs.

Clayton L - 10/04/2018

44323

- C56217
by:
2016 Toyota Highlander

Just bought a 2016 TOYOTA HIGHLANDER XLE. Had a trailer hitch but no wiring to it. Found etrailer online. Wasn't sure if it had trailer tow package or not. The online video etrailer put out there showed me how to easily determine. Took 15 minutes. Their website also explained what that meant: tow package meant the power converter was already under dash (from factory) and one connector in rear of vehicle; no tow package meant 2 connectors in rear, and no converter. Thus I ordered C56217. They sent me an email telling me it was at my door before I was even. The whole job took about one hour. (TOYOTA dealer wanted to charge me $130 for them to do it.) Shipped with detailed instructions and pix. A few things the video didn't show, but were included in instructions: disconnect neg lead of battery; insert additional 10A inline fuse into harness (slips right in and included); connect GND wire to a good GND point on vehicle. (I used an ohm meter to find an existing GND screw.) I also notched out a place for the wire in my trim (exacto knife) as to avoid crimping wire. Also, scissors slightly opened acts as great trim clip removal tool. To sum up, I would not hesitate to use etrailer again or to recommend them. 5 stars all the way around. 544685



- C56217
by:
2012 Toyota Highlander

As a mechanic during my college days back in the 60s and 70s, I installed many bolt on hitches. So, when I bought a 2012 Highlander that needed a hitch, I ordered yours. It was priced great, and delivered to Minnesota in a couple of days. My brother has taken a recent interest in fixing his own vehicles (with my help) was surprised that a hitch was a do-it-yourself project. With his tools and floor jack, and my breaker bar and torque wrench, we two old guys installed the hitch in under half an hour. The Curt electronics were also quick to install. My only confusion was the photo of a tailgate over the instructions where a photo of the driver's front door would have been more appropriate. It made me stop and visit your You Tube video that readily clarified the installation location. Good job all around guys. Thanks. 201894



- C56217
by:
2011 Toyota Highlander

Please read the product reviews before installing a Curt trailer hitch for a 2011 Toyota Highlander. The instructions for trimming the panels is incorrect. Nothing has to be done on the passenger side. Just bend it slightly to get it in place. On the driver's side, the printed instructions are wrong. A 1.5" cut not a 2.5" is what is needed. Follow along the edge of several small holes to the large hole near where the end is snipped away that portion of the directions are correct. I attached a photo, not sure it will be attached. Also loosely install the Curt trailer hitch on the driver's side first, otherwise it won't line up. Tolerances are bit short on the width in my opinion. But it's now on and working fine. 214617



- C56217
by:
2018 Toyota Highlander

After much research I Ordered the 76156 Draw-Tite hitch for my new 2018 Highlander with the Curt wiring kit. Received all parts ordered complete, in less than 3 days . Quality of all items was First Class and etrailer price was hard to beat and I checked around. This was a Real great deal especially when you consider shipping was FREE. The Pictures and Video's on etrailer web site were so HELPFUL on making the buying decision and doing the install. It took me two days but I saved over $500 doing the job myself and it even turned out to be a better set up then the hitch the Toyota dealer was offering. See Draw-Tite Hitch Picture you can hardly tell the hitch is there. Amazing!!! Thank You ! etrailer Corp for helping to make this one of my better buying decisions and projects. . All in All -- NO REASON TO BUY HITCH OR TRAILER PARTS FROM ANYONE ELSE RW 461513



- C56217
by:

Great stuff, great company 660516



- C56217
by:

This wiring harness was exactly what I needed. Everything went together as needed. I followed along with the instructional video and it was a very easy install. I did not run the wire under hatch lid like shown. That seemed sloppy and dumb to me. I guess it works but if you take an extra 2 minutes, you can run it underneath and make it permanent and professional looking. My plan was to drill a hole and drop the wires underneath the body of my vehicle. However, I found a hole that was filled with a rubber stopper. I pulled the plug, cut a slit in it, attached the wires and put the plug back in. I pulled the wires underneath my vehicle and attached it to my hitch. I used some electrical tape to wrap the wires for extra protection. I also used electrical tape on the rubber plug. It was overkill but it makes me feel better. I zipped tied the wires to my hitch to keep it hidden and secure. I checked the 4 way with a tester and everything works. It took my about 30 minutes to install this wiring harness. 5 stars. I highly recommend this product and etrailer. 659158



- C56217
by:

Very fast shipping great fit and easy install. Great product and great company. Highly recommended 659651



- C56217
by:

TOW BAR IS FIRST QUALITY AND PERFECT FIT FOR MY VECHICLE. ALSO THE PRICE IS THE BEST I FOUND PLUS FREE SHIPPING. 658041



- C56217
by:

Quick and easy installation. 655572



- C56217
by:

Hitch and wiring kit worked perfect. 655473



- C56217
by:

All the information i received about this product on line was true. Instructions for installation were to the T with both hitch and wiring. Product was great coming out of the box with no damage or scratches. Performance is great and looks great. I was pleasantly surprised at how heavy duty it is. 656140



- C56217
by:

Install was well documented, easy to follow and continues to work without any issues. 652943



- C56217
by:
2019 Toyota Highlander

Great price 652908



- C56217
by:
Ford Edge

Everything was physically easy to put together. Instructions were very clear up until it came to routing the flat four connector wire from where it snaps into the factory harness below the storage tray to out past the storage tray. The instructions were very vague. The video from e-trailer that I found was a little better, but suggested letting the tray rest on top of the wires so that "there's not any real bad pinch points" as the guy in the video says. The suggestion (which is better than I could come up with at the time) creates a not-so-bad pinch point. In the end I drilled a hole in the tray about an inch from the top edge toward the middle rear of the tray, cut a small slit from the edge of the tray to the hole and installed a rubber grommet to avoid having the tray rest on the wire. A longer connector wire would have allowed me to run it around the tray, or better suggestions of how to avoid sharp folds and pinching of the wire would have been nice (and gotten a 5 star review). All in all, it works, but I spent more time trying to figure out how to route the wire than it took me to physically install the wire kit AND install the hitch together. 652508



- C56217
by:

Works good. Install was easier than depicted on video. Only criticism would be the install video was outdated. 652043



- C56217
by:

Our local trailer shop installed it and it works great! Great product and great company! 651981



- C56217
by:
2019 Toyota Highlander

The install is very easy. However, while assuring things were working as expected, I discovered that on the Toyota Highlander the emergency flashers use a separate circuit (bulbs) from the brake lights. With this wiring harness, if you have the emergency flashers engaged, the trailer brake lights continue to flash when you apply the brakes. This is a safety issue! Because, if you’re moving with the flashers engaged, the traffic following your trailer will not know you have applied the brakes. I called Curt and verified this is how they designed it to work. I also called Tekonsha about their product # 118449. Their tech support clarified that there is no DOT directive that defines that brake lights have priority over hazard lights. He also stated that he has seen the industry change the priority several times. So, I guess it’s consumer beware! 650512


Comments

The guidance and laws vary from state to state, but typically hazards are to be used for a disabled or immobilized vehicle, not for use when driving. For this, and most trailer wiring harnesses the brake light and turn signal are on the same circuit. So if the flashers activate on the vehicle the red lights on the trailer brake and turn signal combined will be activated by the flashers on the vehicle and it will not differentiate between the the brakes and flashers or the turn signal and the flashers. The exception to this is semi trucks and trailers, their wiring configuration typically has the brake, turn, and flasher functions on separate circuits. I have included a couple of help articles about trailer wiring and lighting for your reference.

-- Rachael H - 06/20/2019

56896

- C56217
by:

Works great no problems at all. 648091



- C56217
by:

I ordered this for my moving trip from NC to CA where I would pull a rental trailer with my SUV. I realized THE DAY BEFORE my trip when I was setting everything up that I had mistakenly selected the wrong wiring harness setup. I called etrailer and told them what happened and they OVERNIGHT shipped me the right parts I needed. They got to my door in about 16 hours and I was able to install everything and drive away. Fantastic service and I recommend them to everyone. 648003



- C56217
by:

Harness was very easy to install. No cutting, splicing, worked great with factory wiring. Pricing was great. 647479



- C56217
by:
2019 Toyota Highlander

Easy to install in my 2019 Highlander XLE using the video instruction. The only issue was finding a flat smooth spot to stick the box to the back wall. It would be helpful if the wires were longer so it could down in the rear quarter panel. 647083



- C56217
by:

Great product that is well built and af fordable. 647545



- C56217
by:

No problem installing the wiring harness. The installation video made installation easy. However, I have have not yet hauled the trailer. I don't think the harness will make loading the trailer any easier ! 646550



- C56217
by:
2015 Toyota Highlander

All was as advertised. Great work you guys. 643990



- C56217
by:
2018 Toyota Highlander

I wasn't sure which connection i needed for my 2018 Highlander and talked to Becky. She helped me figure out which to get. The hook up was really easy. I did it exactly as in the directions and the only part I should have skipped was disconnecting the battery with the rear hatch up. I had to figure out how to initialize the hatch again, basically manually close it to get it to establish itself again. Other than that I'm very happy 643559



- C56217
by:
2017 Toyota Highlander

Thanks to the videos. I was able to install the trailer hitch and wiring harness easily following their online videos step by step. I used my new trailer hitch this passed Friday. Worked flawlessly. While I could have bought the same items elsewhere for slightly less, I chose etrailer based on the fact that they stand behind their products through easy installation videos and active support (if needed; and I didn't need). Great product and even better supplier. 641525



- C56217
by:

Great service. Super fast shipping.Highly recommend. 639796



- C56217
by:
2018 Toyota Highlander

fits perfect great hitch fast shipping would buy again ted 639669



- C56217
by:

My 3rd order with etrailer. Very happy with the overall service and quality of the product. 639214



- C56217
by:

Instructions were more problematic for mechanic than trailer hitch. 638523



- C56217
by:

The wiring installed with out any issue- videos are very good for the installation process of hitch and wiring. 638274



- C56217
by:
Toyota Highlander

What a nice product. Went into my Highlander easily. Highly recommend it! 638237


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Ask the Experts about this Curt Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?


  • How to Determine Correct Trailer Wiring Harness for 2019 Toyota Highlander
  • Take a look at the rear of your 2019 Toyota Highlander in the spare tire compartment. You should be able to find a white connector like you see on the right hand side of the picture I've attached. If there is nothing plugged into that connector then you don't have the tow package. If there is something plugged into it, it should be a wiring harness with a converter (like is shown) which means you do have the tow package. If you do have the tow package I recommend the Hopkins harness,...
    view full answer...

  • How to Determine if a 2018 Toyota Highlander has a Tow Package
  • To send me your picture you can just reply to me here. To me that connector you found sounds like where you need to plug a converter in which would mean you don't have the tow package. Look at the picture I've attached. If it looks like this will plug into the connector you found then that's what it is. It shouldn't be a connector for a brake controller because your 2018 Toyota Highlander doesn't have a custom adapter to install a controller. If this is what you need then I recommend...
    view full answer...

  • How To Tell If 2016 Toyota Highlander Has Factory Tow Package Wiring
  • I cannot say for sure how you can tell whether or not you have the converter on your Highlander but I can help you out with the trailer harness installation. The only sure way to tell which harness you need is to check out what wiring you have in the rear cargo area. If you watch the attached videos you can see where the installation differs. If you remove the back tray in the rear cargo area of your Highlander you can see if there are two connectors, one being bigger than the other....
    view full answer...

  • What Is different Between Curt And Tekonsha Wiring Harness For 2016 Toyota Highlander
  • Basically, the different between the Curt wiring harness, part # C56217 and the -One Vehicle Wiring Harness, part # 118449 is they are made by different manufacturers. Both the Curt wiring harness, part # C56217 and the T-One Vehicle Wiring Harness, part # 118449 harnesses plug in the same way(behind the tail lights), and both have a powered converter. They both have a 4-way trailer connector. The # C56217 has a maximum amperage output of 3-amps for the stop/turn lights and 6-amps...
    view full answer...

  • Parts Needed to Install Curt Echo Brake Controller # C51180 in 2018 Toyota Highlander
  • As long as you have a functional 7-way at the rear of your 2018 Toyota Highlander the Curt Echo brake controller part # C51180 will fit just fine and work well. If you need a 7-way you'd need to first start with a 4-way (if you don't have one of those either). For that you'd want the Curt part # C56217 which is a confirmed fit and then to convert to a 7-way you'd want the part # 37185. From there you'd just need to connect the black wire of the adapter to the positive post of the battery...
    view full answer...

  • Recommended Trailer Hitch Receiver and Wiring for 2018 Toyota Highlander XLE
  • I was able to confirm with the manufacturer that the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13200 is a fit for your 2018 Toyota Highlander XLE. For your trailer wiring, if you don't have the OEM 4-way, you need the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56217. This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the interior trim panel in your...
    view full answer...

  • Trailer Towing Setup for a 2012 Toyota Highlander Limited to Tow 2 Jet Skis
  • For your 2012 Toyota Highlander Limited, you'll need a hitch, the wiring, a brake controller and an anti-sway system. Based on my research, it looks like Toyota recommends both a braking and a sway control device on a trailer at this weight on your vehicle. Prior to installing a hitch and towing a trailer, you'll want to verify your vehicle's gross vehicle weight rating (GVWR) and tongue weight rating (TWR) on the sticker inside the driver's side door jamb to ensure that you are aware...
    view full answer...

  • Recommended Wiring Harness for 2017 Toyota Highlander with Factory Tow Package
  • If your 2017 Toyota Highlander does indeed have the factory tow package, I recommend the Curt T-Connector Vehicle Wiring Harness # 56042. This will easily install a 4-Way trailer connector by connecting to the existing port located behind the driver's side interior trim panel in the rear cargo area. If your Highlander has the tow package, this means it already has a built-in converter under the dash, so the converter box is not needed. If you are at all unsure, you can always visit...
    view full answer...

  • Wiring for Curt Echo Mobile Wireless Brake Controller and Adding Electric Brakes to a Trailer
  • The Curt Echo Brake Controller part # C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part # C56217. The white wire from the 7-way plug needs to be grounded to a clean bare metal surface on the vehicle's frame. You are correct, the black wire from the 7-way connector needs to be extended from the plug into the engine cavity and to a 40 amp circuit part # 9510...
    view full answer...

  • Fit of Thule Helium Aero with Curt Trailer Hitch Receiver on 2017 Toyota Highlander
  • The integrated hitch pin in the Thule Helium Aero # TH9043 is designed to install into the standard hitch pin hole of a trailer hitch receiver. If someone told you it needs to be inserted into the other hole of a hitch (Like a Draw-Tite hitch will have) then they're installing their bike rack incorrectly. The second hole is designed exclusively for a J-Pin Stabilization Pin # 63201. The Helium Aero will fit just fine with the Curt Trailer Hitch Receiver # C13200. However, you are...
    view full answer...

  • Trailer Wiring Harness Recommendation for 2017 Toyota Highlander
  • It's very possible that your 2017 Toyota Highlander did not come with the needed converter to activate the trailer wiring like the part # 56042 that you referenced. So instead you'd need the trailer wiring harness part # C56217 and you'd be set.
    view full answer...

  • Adding 7-Way Trailer Connector and Brake Controller to 2015 Toyota Highlander Limited Platinum
  • Your pictures did not make it through so please email them to me by responding to this message. In the meantime the easiest way to determine if a vehicle has the factory tow package is to have the dealer run the VIN in their system and they should be able to tell you how the vehicle is equipped. You can also tell me the VIN and I can run it through some decoders to see if I can figure it out. It is possible for some vehicles to have the tow package wiring but not have the factory...
    view full answer...

  • Do I Install a 10 Amp or 30 Amp Fuse for Trailer Lights in the Fuse Box for a 2013 Toyota Highlander
  • The 10 amp fuse that is included with the Curt T-Connector Vehicle Wiring Harness part # C56217 will need to be the one that you insert into the # 29 slot. The owner's manual does indeed call for a 30 amp fuse here but that is with the factory converter box, not an aftermarket one. There will not be any problems installing a 10 amp fuse in this location even though the factory calls for a 30 amp.
    view full answer...

  • Trailer Hitch Recommendation for a 2013 Toyota Highlander
  • I have a Curt hitch solution I can recommend for your 2013 Toyota Highlander, but the part number you listed does not cross reference with any Curt hitches. Instead you would want the part # 13534 as it has been confirmed as a fit for your vehicle. I attached an install video for you to check out as well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with...
    view full answer...

  • How to Install a Brake Controller on a 2015 Toyota Highlander Hybrid
  • I have a solution for installing a brake controller your 2015 Toyota Highlander Hyrbid. First let's pick out a Brake Controller for you. I recommend the Tekonsha Prodigy P3 # 90195, because it is a proportional controller which means it will apply the same force to the trailer brakes as in the tow vehicles brakes. It also has a customizable full display screen which provides you with a full error messages instead of codes that need to be deciphered. Don't worry that your vehicle...
    view full answer...

  • What are Differences Between Curt Wiring Harness # C56217 and TowReady Harness # 118449
  • Both Curt wiring harness # C56217 and TowReady # 118449 are fits for the 2015 Toyota Highlander without the factory tow package. They differ in their maximum current output capability. The Curt harness has a maximum output of 3-amps per stop/turn circuit and 6-amps for the taillights. TowReady harness # 118449 has a maximum output of 2.1-amps per stop/turn circuit and 5.6-amps for the taillight circuit. Generally its best to have more capacity to help ensure you do not overload the harness.
    view full answer...

  • Parts Needed to Add a 7-Way Trailer Connector to a 2014 Toyota Highlander
  • The Curt trailer wiring harness # C56217 and other wiring harnesses for your 2014 Toyota Highlander include converter boxes because the vehicle has separate turn signals and brake lights but trailers have combined turn signals and brake lights. The converter box converters the separate signals from the vehicle for the proper output to the trailer. It does not make the lights any more or less bright. This is a 4-Way trailer connector so it only has the basic lighting functions. For electric...
    view full answer...

  • Wireless Controller Needed for Towing with a 2018 Toyota Highlander
  • We do have a wireless brake controller that can be used with virtually any vehicle; the Tekonsha Prodigy RF # 90250. This is a proportional brake controller that uses inertia sensors to determine how much power to apply to the brakes so that your trailer brakes at the same time and with the same intensity as your 2018 Toyota Highlander. The only thing required to use this brake controller is a 7-Way that has the basic trailer functions and 12V power active. If you don't have a 7-Way...
    view full answer...

  • Where is the Underdash Connector to Install Curt Wiring Harness # C56217 in 2014 Toyota Highlander
  • The connection point for the 4-way tow harness is located behind the driver's-side interior trim panel in your rear cargo area. The ModuLite plugs into the factory wiring harness beneath your dash, on the driver's side. Once you've plugged in the ModuLite, locate the "towing fuse" position in your fuse box and insert the included 10-amp fuse. Once installation is complete, the 4-way flat connector will be stowed in an out-of-the-way location within your cargo area.
    view full answer...

  • Pick Out Trailer Wiring Harness for 2017 Toyota Highlander with Tow Package
  • Since you have the tow package on your 2017 Toyota Highlander the converter is present under your dash so for trailer wiring you'd want the part # 56042 and you'd be set. I attached an install video for this for you to check out as well. Had you not had the tow package the correct harness is the part # C56217.
    view full answer...

  • Trailer Hitch Recommendation for a 2015 Toyota Highlander
  • Yes, the Curt Hitch part # C13200 is the correct hitch for your 2015 Toyota Highlander. We checked with Curt to confirm this. Also, the reviews and comments on this hitch will apply for your vehicle as well. The 2014 and 2015 Highlanders are the same generation. For trailer wiring you would want the part # C56217. I attached an install video for you to check out. For ball mounts I recommend the etrailer Ball Mount Kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with...
    view full answer...


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Info for this part was:

Expert Research:
Michael L
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Video Edited:
Joshua S
Test Fit:
Nicholas E
Video Edited:
Jacob T
Expert Research:
Adam R
Video by:
Kathleen M
Written by:
Laura H
Photos by:
Jim W
Test Fit:
Shane T
Updated by:
Rachael H
Expert Research:
Jeffrey L
Video by:
Alan C
Video Edited:
Sue W
Test Fit:
Randy B
Video Edited:
Chris R
Updated by:
Sarah W
Photos by:
Stacy F
Test Fit:
Brent H
Test Fit:
Shane H
Video by:
Jonathan Y
Test Fit:
Robert C
Updated by:
Hannah L
Updated by:
Kristina F
Video by:
Michael B
Updated by:
Isabelle B

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