Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.
Quickly and easily install a 4-way trailer connector on your Toyota RAV4 with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
✔ Confirmed to fit your 2013 Toyota RAV4
This custom-fit T-connector plugs into your Toyota RAV4's wiring harness, which is located in your rear cargo area. You will have to remove interior trim paneling to access these connection points. 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.
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. 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 Toyota RAV4'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 RAV4 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 were going to review part number C56166. This is the Curt T-Connector Vehicle Wiring Harness with the 4-pole flat trailer connector. Now this part number is a custom fit part number. This is designed to fit the Toyota RAV4 and the Toyota Avalon and Avalon Hybrid Vehicles starting in 2013, but I would recommend to go to our fit guide and put in your year and model vehicle and it would let you know if this would work on your vehicle. Now this will provide a 4-way flat trailer connector at the back of your vehicle to power your trailers signal lights. It does connect quickly and easily. You have to locate the connection points which are in the rear cargo area, plug in these t-connectors behind the rear taillights and then you run the power wire to the car battery.
This does include a taillight converter to ensure that your vehicles wiring will match that of your trailer. This powered module converter right here connects directly to the battery to avoid any overloading of your vehicles electrical system. Now this does use the surface mount technology, the SMT technology, it gives you consistent reliable performance. Itll help maximize your trailer light yield and intensity, but producing minimal heat. It also ensures superior operation in rough road conditions. It does come with everything shown on the table here.
Now basically a few specs on this. The max amperage that this harness would take is on the stop and turn lights it would be 3 amps per circuit and on the taillights it would be 6 amps per circuit. Basically when you go to install this, it comes with a nice set of instructions which are very detailed. It has some good pictures of where the connections are. What you would do is take this converter to the back of your vehicle and in the rear cargo area you gain access to your taillights, behind your taillights. What you would do is start on your driver side and use the t-connector here with the yellow wire in it, thats for the driver side.
What youll do is unplug the taillight and then plug these in inaudible 00:01:56 into the taillights. Then what you want to do is the white wire on this side, it has an eyelid on it, you want to get a good clean ground up against the vehicle. If you have a screw there you can use, if not they do include a grounding screw. Then what you want to do is take the other set of t-connectors, the green wire this will go to the passenger side of the vehicle, run this over to the passenger side and then same way, these t-connectors will plug in behind the taillight on the passenger side. Then what youll need to do is this black wire that comes out of the converter is a power wire, this would need to run to the front of the vehicle to where the battery is. Thats why they give you this length of wire. What you will do here is use the included butt connectors to install one end of the wire to there, run the wire all the way to the front of the vehicle.
If you need to use zip ties, they include them here to secure any of the wiring. Take the end that comes out to the front, what youll want to do with this is attach it to this fuse holder. One end goes to the fuse holder using another butt connector. The other end, the other wire on the fuse holder will have the eyelid put on it and then this would connect to the positive side of the battery. Then what youll want to do is pop open the fuse holder. They have an included 10 amp fuse that you would just install in there and then close it into place. Now it also includes this double face piece of tape. What that would be used for is on your converter you can stick this to it and then it adheres this converter in the rear of the car to a good secure place. It also comes with this nice rubber dust cover. What thats for is you can install this onto your 4-way connector that will be at the rear of your vehicle. When youre not plugged into a trailer, you can just put this cap just like that. Put it on the correct way. There we go. You just line that up and itll go right on like that. That should do it for the review of part number C56166, the Curt T-Connector Vehicle Wiring Harness with the 4-pole flat trailer connecter. .
Average Customer Rating: 4.6 out of 5 stars (45 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. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
This review is for the Curt C56166 wiring harness which was installed on a 2014 Toyota Rav4 on November 7, 2015 and also contains some tips on the installation that might be of help. Tools needed: Medium Phillips head screwdriver, 10' 12 and 14mm sockets, short extension, side cutters, extra ties, wire stripper/crimper, trim panel tool, 1/4 nut driver OR drill,1/8 bit and a Phillips sheet metal screw. Unless you're as skinny as a rail, I also highly recommend driving the front of the vehicle onto a set of ramps. In the installation video that E-Trailer provides (btw good job), you'll notice the guy is wearing gloves. If you don't mind getting scratched up and a little bloody, I strongly recommend wearing them in addition to a long sleeve shirt. When prying the plastic cover off the forward cargo hooks, pry at the CURVED end to expose the bolt. Don't forget to remove the 2 other bolts on either side of the rear side panels as well as the phillips screw on either side and both of the cargo hooks. When you are removing the bottom threshold, look for the black square bosses that are about 3/4 square and pry underneath them to pop out the retainers. On the rear middle panels, there were only two retainers each side; one close to the bottom and one at the top. I went ahead and loosened up both sides and then had my wife hold each side back in order to gain access to the wiring. The driver's side was easy, but the passenger side had the tab you are supposed to push down facing away. Gloves don't work here, take then off. I had to use a small screwdriver to depress the tab as I have big fingertips. The harnesses snapped together as they should. The video shows a 1/4 nut driver being used to secure the ground with a self tapping screw on the driver's side. If you look at the location (just above the oval opening in the sheet metal where he installed it) BELOW that oval opening is actually a dimple in the metal which makes it easier to drill as the bit will not wander. I don't trust those cheap self tapping screws so I drilled a 1/8 pilot hole then scraped around the hole to bare metal and used a phillips screw to secure the ground. After you have spliced the black wire and removed the grommet and put a small slit in it (the grommet is actually on the SIDE of the well; although in the video it looks like it is on the bottom) make sure the grommet faces the correct way and run it up the wire to about 12 - 18 inches before the butt connector. When reinstalling the grommet, take care to push gently around the OUTSIDE not the middle as you'll push it through the hole (like I did ) and end up having to remove the grommet from the wire and start over. When reinstalling the rear cargo hooks on both sides, make sure the locating tab is facing up and fits into the hole before tightening. I'm not a fan of running the trailer connector out the back lift gate. On the bottom of the spare tire well towards the front of the vehicle there is a large grommet. I simply removed this, put a slit in it and ran the trailer connector through this and under the vehicle and secured it to the hitch. There is more than enough wire to do this. Running the black wire to the battery was easier than I anticipated and a coat hanger does the job of fishing the wire from the bottom to the top. You can NOT test the connector with an Ohm or Voltmeter as it will show battery voltage at the yellow, green and brown pins. You must use a test light as shown. All in all, a fairly easy install for me as I am mechanically inclined and it took me 2 hours. Kudos to E=Trailer for a great instructional video, great products and great service. 231571
The harness arrived in good condition and fairly quick, since it is a new item for the 2013 Rav 4. The install is not exactly easy. It took myself and a friend (an Aircraft A&P mechanic) 4 hours to complete. We were being careful not to break any interior plastic which added to the time. My wife did not like the idea of hanging the connector out the hatch so we decided to run it our the bottom next to the spare tire through a rubber grommet ..then sealed the grommet with silicone and mounted the flat connector to the provided are on the hitch. It might be helpful to test the connectors provided with the harness before trying to disconnect the connectors on the vehicle. The vehicle connectors are in a very tight spot and trying to unlock the tab is not easy. Pictures of how to unlock the tab connectors on the instructions would have been helpful. I thought it would be a good idea to teat after the install with a volt/ohm meter. To my surprise, I had 12V at each leg without anything turned on. We then connected the trailer and all worked as expected. We still don't understand it but it works just fine. Some serious magic in that little black box LOL. Ron 73681
by: Don C.09/25/2014
The 2014 Rav4 hitch and wiring harness arrived in good shape within 3 business days of my order. Installing the hitch was simple and easy (30 to 45 min) with the use of a jack to hold one side while starting the bolts on the opposite side. I did not remove the exhaust as suggested but used a wood block to hold it aside while installing the bolts. Installing the wiring harness is more of a challenge, especially if you have little or no experience. The instructions and few photos are not much help. After removing all the rear panels as instructed you also have to loosen the complete side panels enough to reach inside with your arms and the tools needed. I loosened the driver side rear panel to allow access to the floor of the rear passenger area. This will allow you to eventually feed the hot wire forward. Wear a long sleeve shirt to protect your arms from the sharp edges of the plastic side panels. After making all the connections, I fed the hot wire forward under the inside plastic floor guards for each door on the drivers side. Under the dash (above and to the left of the brake pedal and under the insulation) there is a large rubber grommet around the vehicle main electrical harness. I used a stiff wire to push through the grommet and feed the hot wire to the battery. There was more than enough wire supplied to route the wire this way. Even with my previous experience it took me just over 4 hours to complete the installation. I am very pleased with the product and would recommend "etrailer" to all who read this review. 152980
by: Chuck K.06/07/2015
Installed this in my new 2015 RAV4. Took a bit longer than I expected due to a considerable amount of disassembly and partial disassembly of vehicle's plastic trim parts. The OEM connectors were actually behind the upper trim panel which also required partial disassembly (the instructions made no mention of this). There was a convenient tapped hole in the chassis that could be used for the ground point. Had to run to local hardware store to get an M6 metric pan head screw to accomplish the grounding. I ran the power cable up the passenger side of my vehicle because I had previously run something else through the firewall boot on that side. The driver side also has a firewall boot, but it is hidden behind engine parts making it extremely difficult to get at. As a result of running my wire along the passenger side, the supplied wire was too short to reach the battery. I simply added more 12 ga. wire. Accessing the OEM connectors behind the partially disassembled panels wasn't real fun. A bit tough to get both hands in there. When I was done with that part, there were some pretty good "indents" in my wrists where the plastic trim pushed against me. With a run to the local hardware, and a lunch break, it took me about 4-1/2 hours to complete. Connector tested fine with a test light. 201380
thanks to the guy suggested plastic trim tools from harbor freight they were helpful, drivers side T connector wires need to be longer as would not let me put convertor box in a good place so I extended them. ran battery wire in side vehicle tucked it under plastic door trim and put through firewall where wire bundle and hood latch went through used screwdriver to punch hole and small electricians fish tape to feed wire through. overall very pleased with kit and instructions. installed on 2014 Toyota rav4. if you are not used to working on cars/mechanics it may be a bit much to do. 137253
Installed nicely but the instructions were a little vague on where to best mount the module for the RAV4 and where to put the ground screw. I put the module on the flat-ish spot on the driver's side in front of the tail light. I put the ground screw in the 3/4" joint running up the door frame behind the panels and I just used the self-drilling screw to make the hole. The edges of the panels you pull out have sharp spots so be careful to not get little cuts and scrapes. as you're reaching in for the connectors. I ran the power cable inside the RAV4 and pushed it through the big rubber boot under the driver's dash. (using a long springy rod to get string through to pull the wire.) From there it was an easy run to the battery. All in all it wasn't a bad install at all. It took some patience and rereading the instructions a few times to get it done but very doable. Don't rush if something doesn't look quite right because the instructions are correct if a little vague in spots. 98149
by: Randy P.09/12/2014
Got the hitch & wiring harness kit in very short order. Put hitch on in half hour, wiring took about three hours. Keep in mind I'm 72 years young, so I'm very happy with E-Trailer products and instructions. Thank you E-Trailer !! 150874
by: Blair H05/16/2015
The wiring kit itself is quality and includes everything you need except for the few tools such as a screwdriver, trim tool, wrench, and box cutter. This job isn't incredibly difficult, but does take some planning - you definitely need some time - it took me about 2½ hours total to complete it. It also really helps to either have a set of ramps, or access to a tall curb that you can drive half the car up on to crawl underneath. The nylon trim tools are also very helpful. Watch the videos that eTrailer put together, take your time, wear long-sleeve shirt and have gloves handy. It ended up working out really well, and I would do it again, but it was quite a time consuming job. One more suggestion - when you order this, spend the extra four or five dollars and buy the wiring tester - it will ensure you can verify the wiring was done properly afterwards. 193473
by: Norman J01/25/2015
I ordered this harness to go with the hitch for my 2013 Toyota RAV4. The hitch was simple to install and took about 1/2 hour. The harness took me three hours and the directions were not specific to the 2013 model. Photos showed the connector placement near the tail light assembly but on my vehicle it was located about 8 inches above the light assembly. This required removal or two additional panels. Disconnecting the factory connectors was difficult on the passenger side because the release faces away and space is very tight. A power line needs to be run to the battery and I found this easiest to do along the passenger side. A hole must be drilled through the firewall to route the wire. This kit includes everything you need and it worked very well after installation. I recommend it. 171188
by: Manny B.04/14/2014
Hitch construction and finish look great. Installation was a snap, as advertised. I did it alone with the Rav4 up on ramps. Haven't towed yet but expect no problems. 124948
by: Mike Z.08/03/2015
The installation of this went easier than expected. You need a good pair of crimpers for the butt connectors (a heavy pair like Channellock, not cheap ones from Walmart) and you really need to drill a pilot hole for the ground screw, if you use a drill to run in in like the video it will likely shoot someplace down into the frame and you'll need to go get another screw. Also you cannot test the connector with a volt meter, the module is apparently solid state and will just read 12 volts on all the connectors due to leakage current. You need a tester like they have in the video which provides a load. Also you need the trim removal tool, you don't want to bugger up the plastic panels and it makes the job so easy. 216298
by: Rich Stro09/25/2013
The Trailer Hitch apparantly had been damaged in shipment because the spacing between the mounting holes was too close by 3/8". I had to use a Hydraulic bottle jack and 4x4 wood block to expand the mounting pads so they wold fit. I think they need to put some foam in the packaging.. so when shipper drop the box it doesn't cause the mounting plates to get closer.. Other than that no problem only took 15 minutes to install 101421
by: Harry W.10/07/2014
If you take your time, read the instructions carefully, watch the Tow Ready video and enlist the help of a friend installing the hitch and wiring was very straight forward. The hitch takes about a half hour and the wiring takes about 3 hours. The good news is the wiring actually worked (of course it did), and the hitch is a perfect match (with a little tweaking lining up the mounting holes) on my new Rav4. I will repeat a tip that I read from another reviewer; the rubber grommet hole through the firewall is located upper left behind the brake pedal. Knowing this saved a lot of time. 155055
by: Lee C.03/20/2014
Last time I purchased from etrailer was 9 years ago until this time and as I remember all was 5 star back then also. As usual an excellent online buying experience from etrailer.com. Product arrived in 3 working days and was the correct hitch plus the wiring harness for my 2014 Rav4. High quality products which makes even installing a trailer hitch no problem. I did think I should have received the Curt receiver hitch plug as I have on other trailer hitches. The cost to ship a plug now costs less than the shipping. The only bummer on the whole deal. 121396
Thanks to the great customer service and excellent video, the installation was very easy. The wiring harness arrived in three days and in perfect order. Following the video, I was able to install it in 2 hours. The installation was simple and the components worked flawlessly. The task required a screw driver (flat head and phillips) , socket set , wire cutter, pliers and a trim tool. I have never done this before and had no issues. Be sure to follow the video and all will be perfect. 212739
by: Joe M.06/05/2015
Product arrived in two days in great condition. 15 min hitch install and one hour for harness. I decided against running my power wires below the truck and instead ran it down the the left side under the the door sill plates. Everything works as promised and I'm looking forward to having another tow vehicle in the garage for light duty towing. E trailer was fantastic. I received three emails from George on my hitch. He was great. 200996
by: Joe M.06/05/2015
Product arrived in two days in great condition. 15 min hitch install and one hour for harness. I decided against running my power wires below the truck and instead ran it down the the left side under the the door sill plates. Everything works as promised and I'm looking forward to having another tow vehicle in the garage for light duty towing. E trailer was fantastic. I received three emails from George on my hitch. He was great. 200995
2014, RAV4 just installed, checks out ok. Took while removing interior molding and running wire to battery. Wire harness was EZ with the T-connectors. Even though etrailer.com website has much info on installation, I still called asking for help, customer service was helpful and understanding. Just wish that the power converter was designed to be more accessible/replaceable in the event it should ever malfunction. 131666
by: Brent Frazier03/12/2014
Hitch installed in less than 15 minutes with another pair of hands. The electrical harness was a bear, though. The connectors were difficult to disconnect because of the tight space. Went well from there, though running the wire to the battery was interesting. I ran the wire through a hole punched in one of the tire well drain plugs, then sealed with silicone. Electrical took about 3 hours. Works fine. 120418
by: Larry R.03/07/2015
This product was exactly as described in the product description and the installation was easy. I watched the video for the muffler hanger release to drop the muffler and a little CRC did the trick. I installed the trailer hitch on a 2014 RAV4 and the product value is exceptional, a very well constructed hitch with pleanty of towing capacity. I would recommend this hitch to everyone. 177404
Installed this product on a 2013 Toyota Rav4. This wound up being one of the more enjoyable parts of adding a trailer hitch to my new car. The unit was pre wired with Toyota connectors so all I had to do was plug it in. Fortunately, the interior panels that needed to be removed were no problem on the Rav4. Other vehicles may be more problematic but it works as advertised 114093
by: Howard K.03/17/2015
I could'nt be happier. Once again, etrailer delivers nothing but quality and ease of installation and excellent product. I was not looking forward to working on my Rav4, as everything else I did with it was difficult at best, but etrailer made it EASY and Painless! THEY made it simple and stress free. Thanks etrailer.com! You rock! 179039
by: Tony I.06/22/2015
This wiring harness is foolproof. Great instructions and pictures. Installed in my 2015 Rav 4. Instead of drilling a hole for the ground wire screw there was an m6X.8 weldnut on the drivers side near the connector you need to access. You can scrape the paint off to bare metal and attach your ground wire here. 206484
by: Randy R09/23/2014
The light kit is well made and fit the vehicle well. I would recommend going to u-tube and watch a video before you start the installation. The worst part is running a hot wire to the battery. There are no hot wires in the back of the car to tie in to, so be careful how you run a wire to the front. 152626
by: John R.10/22/2014
Perfect fit and the timing of receiving was really great. The product was in good condition when received. I am completely satisfied and I will order again when the time comes. Great service, product and price. Your web site is very helpful in choosing and installation of the product I purchased too. 157346
by: June B.02/24/2014
Received hitch in a few days. Fit perfectly. The recommendations I received from Katie D were exactly what I needed to make my decision. Product arrived in perfect condition. Very pleased with product and service. Have recommended your site to someone else who needs a hitch. Thanks for your help. 117373
Product is great except the bolt holes didn't line up. I had to cut a 2 by 4 and use my bottle hydraulic jack to make the spacing greater between the two side mounting flanges. Had to widen the spacing about 3/4"of an inch. After about 3 tries I got it right and it was then easy to install. 221918
by: Donald Drouin09/04/2013
My box was delivered and the top of the box was opened and then re-taped by someone. I asked the UPS guy if all the parts were there and he said "I hope so". I have not had the time to go through the box but I will at my earliest convience. 98167
by: Gene F.03/06/2014
This takes the longest time to do because on the RAV 4 you have to remove the rear side panels. The left side wires could be longer so you can mount the convertor box in spare tire compartment. I spliced longer wires on mine. 118610
Super fast service. This is the way businesses are suppose to be run. Ordered on a Sunday delivered and installed by Thursday. Everything was there and in perfect shape. Will be ordering more. Thank you. 75733
by: Jon D08/13/2015
The instructions that came with the product were a little out dated, but the online video was clear and easy to follow. The same with the installation of the hitch. Great products and great company. 219066
by: Jim MIko04/02/2013
Fit my 2013 RAV 4 as advertised. Easy to install except for the line to the battery, that was a pain. I ran the line from the battery through the interior of the car as it is more protected. 73807
by: Jeff B04/29/2014
This wiring harness was actually surprisingly easy to install. The directions were very clear about how to properly and safely connect the wires to the tail lights and to the battery. 128164
by: larry beck10/07/2015
The only reason for not an excellent rating was the packaging, it was broken open. Fortunatly all the pieces were securely taped to the hitch. It fit perfectly as advetised 229458
by: Jeff R.12/17/2014
Two thumbs up... clear directions. I had no issue installing even after a hard Christmas party the night before... installed without issues, through one blood-shot eye.. 165828
I'm assuming it's fine as I had the Toyota Dealership install it. Total time (with the Class III Hitch), two hours and no negative comments from the service department. 184219
by: Daren R.01/28/2015
Ordered a hitch for my wifes Rav4 so she can pull her little boat. Shipping was fast and it took all of about 20 min. to install. I'll let you know how the wiring goes. 171619
by: J. Ledoux03/06/2014
This is my second order curt T connector set . The first one easy I and this second one should be the same. the shipping good and thank you for your concern. 118603
by: Scot S08/25/2013
Save alot of time .. Better then do-it selfer and piecing it together 96831
by: Robert Prokopchak07/28/2014
Was thankful you had a on line ability to watch how to put in thank you would never been able to find the connection to hook up to with out it. 143238
Once you figure out how the panels come apart it was very easy. Just have to take your time so you don't break any of the interior body panels. 131290
by: John D09/21/2015
Pretty easy to install following video. I chose to install the plug outside. Only negative is that the module would not stick. 226733
by: Oscar C.05/12/2015
Vary easy install. Everything I needed to do the install was in the box. I highly recommend this product. 191973
More difficult than hitch but very nice when done 179147
Quality product time consuming install 160376
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