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Toyota Highlander Trailer Wiring

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Toyota Highlander Trailer Wiring Harness

Make installing a trailer wiring harness on your Toyota Highlander as easy as possible with a custom fit wiring harness from Draw-Tite, Curt, Pollak, Tow Ready, Bosal, or Hopkins. A custom kit will eliminate or reduce the need to cut and splice wires in your Toyota Highlander while helping to protect sensitive electronics.




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Toyota Highlander Custom Fit Vehicle Wiring Videos

Trailer Wiring Harness Installation - 2012 Toyota Highlander

Today on our 2012 Toyota Highlander, we'll be installing the Curt T Connector vehicle wiring harness with four pull trailer connector, part number C56217. To begin with, we'll need to locate the harness, which is underneath the dash on the driver's side. It's a white plug that we're looking for and it's in between the brake pedal and the emergency brake pedal. Now, we're going to first go ahead and make sure the pins line up with the new plug on the box with what the factory wiring harness has. After checking them, we see that they line up exactly how they're supposed to. Now we'll go ahead and make the connection. We want to make sure that when we push the connection together, that we hear it lock into place. Next, we'll go ahead and put our white wire under the grounding stud, located up on the front fire wall. But, it does not have a nut and you will need to supply this separately.



Trailer Wiring Harness Installation - 2004 Toyota Highlander

Today on our 2004 Toyota Highlander, we'll be installing the Tow Ready T1 Vehicle Wiring Harness with four pulse lat trailer connector, part number 118413. To begin with, we'll go ahead and raise the rear hatch of the vehicle. You'll notice two small doors, or panels on the inside of the vehicle. One on each side. We'll need to remove each of these panels to gain access to the tail light wiring assembly. Now let's set out our T1 Vehicle Wiring Harness to go over what parts are included.



Trailer Wiring Harness Installation - 2013 Toyota Highlander

Today on our 2013 Toyota Highlander we'll be installing the Tow Ready T1 vehicle wiring harness with four pole flange connector, part number 118449. To begin our install we're going to start in the drivers side kick panel located underneath the dash board. Attached to the manufacturers wiring harness will be a white connector that will match the white connector for our Tow Ready harness and converter box. Now that we've located the connector we'll need to remove the threshold and drivers side kick panel so we can store the converter box and wiring. To remove the threshold we'll use a flat blade screwdriver or interior trim panel tool to gentle pry the panel up and release the fasteners underneath. Next we'll go ahead and repeat the same process with our kick panel only we have one plastic cap nut to remove also.



Trailer Wiring Harness Installation - 2005 Toyota Highlander

Today on our 2005 Toyota Highlander we'll be installing the Tow-Ready T1 vehicle wiring harness, part number 118413. First we'll need to go ahead and remove the access panels on both sides. We'll go ahead and sit those aside. Then we'll remove the center cargo tray. Now on most applications they'll be push pin fasteners that will need to be removed, however for this application they're missing. We'll go ahead and remove the center cargo tray.



Trailer Wiring Harness Installation - 2006 Toyota Highlander

Today, on our 2006 Toyota Highlander, we'll be installing the Tow Ready T-OneVehicle Wiring Harness with 4 Pole Trailer Connector, part number 118413.First, before we install our Tow Ready harness, we'll need to access themanufacturers wiring. So, we'll start by opening up the rear cargo door and removingthe rear cargo mat. Then we'll remove the corner covers for the rear storagecompartments and lift up the center compartment. Now, we'll remove the two pushpinfasteners, securing the center section in place. Here we'll be using an interior trimpanel tool, but you can also use a flat bladed screwdriver. Now, with the two fastenersremoved, we'll go ahead and pull the tray up out of the way and set it aside forreinstallation later.



Trailer Wiring Harness Installation - 2006 Toyota Highlander

Today on this 2006 Toyota Highlander, we're going to install part number 118248from Tow Ready. The first step is to go ahead and remove the interior panels to get toour wiring harness. We'll have to remove the access panels, the threshold, and trunk floorpanels and trays. We'll go ahead and locate the port on the driver's side. Somevehicles have a cap. We'll remove the cap if necessary, and then we'll go ahead andinstall the T1 wiring harness.



Trailer Wiring Harness Installation - 2012 Toyota Highlander

Today on our 2012 Toyota Highlander, we'll be installing the Tow Ready T1 connector, part number 118449. Our first step is going to be installing the converter box on the driver's side up underneath the dash. You'll locate the manufacturer's 10-pin plug which identically matched the Tow Ready plug that goes to our converter box and plug into the manufacturer's plug. Next, we'll go ahead and peel back the two-way adhesive when we mount our converter box. We'll be mounting to a clean flat piece of sheet metal. You look up underneath the dash on the driver's side, you can locate a flat area to attach to.



Trailer Wiring Harness Installation - 2003 Toyota Highlander

Today on our 2003 Toyota Highlander, well be installing Tow Ready T-1 connector, part 118413. To begin our installation, well need remove the rear cargo cover, the spare tire cover, inside compartment cover; well also remove the panels behind the taillights. With all of our interior removed from the vehicle, well now have access to our wiring. Well need to unplug the harness at the connector just behind the taillight. With the connector unplugged, well feed the brown and yellow wire from our T-1 connector up behind the body panel to our taillight assembly. We can then connect the factory harness into one side of our T-1 connector and the other side well plug in to the taillight.



Trailer Wiring Harness Installation - 2004 Toyota Highlander

Today we are working on a 2004 Toyota Highlander. Were going to install a Tow Ready T-One connector part number 118248. Our first step is to access the rear cargo area of the vehicle. Were going to open up the storage compartment with the spare tire tool tray, and the drivers side cargo tray. We have a push pin plastic fastener on each side that will have to be removed, and go ahead and set it out of our way. Now I am going to go ahead and remove the rear threshold so I can get the drivers side cargo tray out.



Trailer Wiring Harness Installation - 2011 Toyota Highlander

Today on this 2011 Toyota Highlander we are going to install part number 118449 from Tow Ready. This kit comes with a few different pieces. It comes with a fuse that goes into the fuse holder underneath the hood. The module itself actually gets plugged underneath the dash of the vehicle. The 4-pole flat is actually plugged into a port that is at the rear of the vehicle. So we will start at the front and work our way back. The first thing we need to do is go ahead and get underneath the dash and we will go ahead and plug in the module in to its port. OK, this is the module itself. And this is the part that gets plugged in to the port underneath the dash. In this particular case, it is pretty easy to find. It stands right out. Just kind of pull it down a little bit and plug in to it. Now we will take our module box. It has an adhesive back to it. It will actually mount to this component above it in a nice, flat spot. 0:55



Trailer Wiring Harness Installation - 2010 Toyota Highlander

Today on this 2010 Toyota Highlander we are going to be installing wiring harness part number 118449. The first thing I want to point out about our harness is that it comes in two separate pieces. We have got the first section which has an in line fuse in the modulite box as well as the port to plug in the vehicle. This is going to plug in underneath the dash on the driver side of the vehicle. The second part of the harness plugs into the rear of the vehicle inside the rear cargo compartment and that will finalize the tow package for us. We are going to start here inside the vehicle up underneath the dash and plug our first part of the harness in place. The port is located underneath the dash just left of the brake pedal taped to the main wiring harness. All we need to do in here is plug it in line and then we see on the back side of the modulite box we have got double sided tape. We want to find a good spot up in here and adhere the box to it. 00:54



Trailer Wiring Harness Installation - 2008 Toyota Highlander

Today on this 2008 Toyota Highlander we will be installing the wiring harness part number 118449. The first thing I want to point out with this wiring harness before we get started is that it does come in two pieces. The larger piece with the larger 10 pin port is going to plug in underneath the dash on the interior of the vehicle. The second part which contains our 4-pole end is going to plug in at the rear back in our cargo area. We are going to start off by plugging the larger section in underneath the dash first. The port underneath the dash is located just left of the brake pedal attached to the main wiring harness lead right there. Now that we have the port located we can plug our harness in line and then we want to take the modulite box and we need to adhere it to a surface underneath the dash. We have got double sided tape on the back side so we can just peel that away and just find a place to adhere it. 00:54



Trailer Wiring Harness Installation- 2009 Toyota Highlander

Today we are going to be installing wiring harness 118449 on a 2009 Toyota Highlander. The first thing I want to note is once you take the harness out of the package you will have two individual pieces for the harness. The larger portion will be the harness and white plug modulite box that we are going to plug in under the dash on the left side of the brake pedal. The second part is actually going to plug in back in the rear cargo area on the right hand side underneath the paneling. We are going to hook up the larger portion first. Again we will be under the dash if you look under there just left of the brake pedal you can see a big ten pin white plug that we will plug this into. :49



Trailer Wiring Harness Installation - 2006 Toyota Highlander

Today we are going to do an install of part number 118248 the T One connector from Tow Ready. It will be installed on our 2006 Toyota Highlander. To get to our access point which is about down here and underneath this panel. So we will have to roll back the carpeting and pull up the tray and gain access that way. Once you get everything out of the way it is pretty clear that this is the plug right here for the harness. So our T connector can plug right into here. Then our ground wire will actually mount to this ground bolt right here. We took our ground bolt out and we will simply install our ground wire here and run it back through there and install it. Next we will install the module box itself using the self adhesive tape that is on the backside of the connector.





Toyota Highlander Custom Fit Vehicle Wiring Questions and Answers


  • Where are the Connectors Located in 2015 Toyota Highlander to Install Curt Wiring Harness # C56217
  • The two harnesses you are looking for to install the Curt Wiring Harness on your 2015 Toyota Highlander are located exactly where the installation instructions indicate they will be; located in the rear hatch behind the rear scuff panel on the driver side of the vehicle. For more information on how this product installs check out the install instructions and install video I attached to the right.
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  • Trailer Wiring Harness Recommendation for a 2012 Toyota Highlander
  • If you don't have the tow package on your 2012 Toyota Highlander Hybrid the correct harness would be the part # C56217. We had a customer with a 2012 Hybrid model like yours say this kit worked well on his vehicle. If you do have the tow package you would want the part # 56042 instead. To determine if you have the tow package you will need to contact your local Toyota dealership with your VIN. If you have the original build sheet for your vehicle it will be listed there as well.
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  • How to Determine if 2006 Toyota Highlander Has the Factory Tow Package
  • If your Highlander has an active tow package plug located in the driver's side rear of the cargo area under the floor (see linked instructions for part # C56107 to see where plug is located and how to access it) your Highlander has the tow package. If you find the plug, use a circuit tester like part # 40376 to ensure it's active. Probe the contacts of the plug as a helper activates each lighting function. If you don't find the plug, or if its NOT active, you don't have the tow package. There's...
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  • 2015 Toyota Highlander XLE Trailer Wiring Harness Recommendation
  • The Curt Harness part # 56042 that you referenced is designed as a replacement harness for vehicles like your 2015 Toyota Highlander that came with a factory 4-way. Although Toyota said you have the factory tow package it sounds like you are missing the necessary under dash converter. This is a Toyota part that they might be able to set you up with, but we don't carry it. The best solution I can recommend for you would be to get the part # C56217.
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  • Where to Route 4-Way Trailer Connector from Storage Area on a 2008 Toyota Highlander
  • When you are ready to use the trailer wiring harness # C56217, you will just pull the 4-Way end out. Make sure the wires are on the weather stripping at the back of your 2008 Toyota Highlander, not on the latch and close the rear door. The weather stripping will protect the wires. Take a look at the video I have linked to the right. Fast forward to about the 2 minute, 30 second mark to see how this works. To route it through the vehicle you would have to locate a grommet that exits the...
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  • Current Capacity of Curt T-Connector Vehicle Wiring Harness # C56217 in 2015 Toyota Highlander
  • The Curt T-Connector Vehicle Wiring Harness # C56217 that you referenced is indeed a correct fit for your 2015 Toyota Highlander. Please note that the 10-amp ATC fuse included in the kit is not intended for installation in the vehicle's fuse panel; this fuse is to be installed in the included red fuse holder that is wired to the converter box. I don't think you need to worry too much about blowing the fuse. This particular harness has a substantial output current capacity - 3 amps...
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  • Troubleshooting 4-Pole Factory Wiring Harness on 2008 Toyota Highlander
  • If your trailer lights just recently started malfunctioning, I recommend that you start by checking to make sure that you don't have a blown fuse or a bad relay in your 2008 Toyota Highlander. You will want to check all of the fuses and relays that relate to the tow package. If all fuses and relays check out to be fine, I would then check the grounds on both the Highlander and your trailer. You will want to check to make sure that the ground wire is secured tightly to a clean metal surface...
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  • Best Trailer Wiring Harness for 2013 Toyota Highlander with or without Factory Tow Package
  • As long as your 2013 Toyota Highlander came with the factory tow package you can use the Curt wiring harness # 56042. Models without the factory tow package would need to use # 118449 or # C56217.
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  • Connector Location for the Curt Wiring Harness part # 56042 on a 2014 Toyota Highlander
  • I am glad you were able to find the location for the connector of the part # 56042 on your 2014 Toyota Highlander. The connector can be in a few locations so we appreciate you letting us know where you were able to find it on yours.
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  • Troubleshooting a Trailer Wiring Harness # 56042 Install on a 2014 Toyota Highlander
  • The 4 pin connector used to install the # 56042 can be in a few locations which does make the install a little more interesting. I am glad you were able to find it. I would verify that you put the fuse in the correct location. If that doesn't fix the problem I would verify that the connector of the # 56042 is making solid connection with you tow vehicle and that the fuse didn't blow while in the wrong slot. I attached an install video that shows a very similar product being installed...
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  • Best Trailer Wiring Harness for a 2014 Toyota Highlander with or without Factory Tow Package
  • The easiest way to determine the wiring harness you will need for your 2014 Toyota Highlander is to have the dealer run the VIN. They can tell you if it is equipped with the factory tow package or not. If it is then you would need # 56042. If it does not have the factory tow package use # 118449. You might be able to test the factory connection point at home to determine if it is functional or not. You would need a circuit tester such as # 3808 or a multimeter such as # BTMT15. Then...
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  • Does My 2007 Highlander Hybrid have the Tow Package Wiring Connector
  • To determine if you could use the Tow Ready wiring harness part # 118248 on your 2007 Toyota Highlander the most efficient way would be to determine if you have the trailer wiring connector on your vehicle, and then use a circuit tester like part # 3808 to determine if the pins on it are active. If both of those things check out the # 118248 would work well for you. To see where this connector is check out the 45 second mark of the install video I attached to the right. Otherwise...
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  • Best Trailer Wiring Harness for a 2006 Toyota Highlander with LED Tail Lights
  • The Tow Ready trailer wiring harness # 118248 will work on your 2006 Toyota Highlander with LED tail lights. This particular harness is designed to fit models that have the factory tow package. If your Highlander did not come with the factory tow package and it is a Hybrid model use # 119179KIT. If it is not a hybrid use # 118413. All of these harnesses will work with LED tail lights.
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  • Installing TowReady T-One Vehicle 4-Pole Wiring Harness # 118449 in 2014 Toyota Highlander
  • Thank you for your recent purchase from etrailer of T-One 4-Pole Wiring Harness # 118449. This harness is a correct fit for your 2014 Toyota Highlander without factory tow package. Often the factory wiring/connectors may be taped to other wiring or tucked out of the way for safety. It may take a few twists and contortions to get yourself into a position to allow you to find the connector. The linked video will help you see the whole process. My contact at Tow Ready confirmed the connector...
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  • Trailer Wiring Recommendation for a Ford E350
  • The Tow Ready Wiring harness part # 118260 that you referenced would be the correct wiring kit for your Ford E350 as long as it is a 2009-2012 model.
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  • How to Add a 7-Way Trailer Connector to a 2005 Toyota Highlander with Tow Package
  • If your 2005 Toyota Highlander does not currently have any trailer connector but does have the tow package then you will first need to install a 4-Way such as # 118248. If it did not have the tow package you would use # 118413. Then you would need a 4 to 7-Way adapter. You can use # 30717 but I recommend # 37185 since it comes with a mounting bracket. For either you will need to make sure the white wire is grounded to a clean bare metal surface. Since you only need the light functions...
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  • Hitch and Wiring Recommendation to Tow Trailer with a 2014 Toyota Highlander
  • In order to tow a trailer with your 2014 Toyota Highlander you will need a hitch receiver, wiring to operate the taillights on the trailer, ball mount, hitch ball, pin and clip. I am assuming that your Highlander is already equipped with a hitch but if not, you will need one like the Hidden Hitch Class III Receiver, # 87660. This hitch was specifically designed for the Highlander and bolts directly to the frame of your vehicle with no welding required. If your vehicle did not come...
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  • Troubleshooting Tow-Ready T-One Vehicle Wiring Harness # 118449 in 2012 Toyota Highlander
  • Thank you for your recent purchase from etrailer. There are several possibilities for the trailer lighting issue you are having. First, I suggest you test the trailer that has the 7-way connector, either by connecting it to another vehicle with a 7-way or by directly testing it with a 12V battery. You can apply 12V power directly to the trailer connector's pins to see if the lights function. If they do, then you know the problem is upstream of the trailer; if they do not you need to...
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  • Trailer Wiring Recommendation for a 2011 Toyota Highlander Hybrid
  • Yes, the Tow Ready Wiring Harness part # 118449 that you referenced will fit your 2011 Toyota Highlander Hybrid. The only difference on the Hybrid models is that you might need to track down a 10 amp mini-fuse for the underhood fuse install instead of the standard size fuse that is included with this kit. I attached an install video and installation instructions for you to check out.
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  • Trailer Wiring Harness for 2002 Toyota Highlander
  • Your photo did not come through to us with your question, but we appreciate that effort! The Curt Custom Fit Vehicle Wiring Kit you referenced, part # C55245, is intended for vehicles that have the factory tow package installed. The connector that mates to the OEM wiring on your Highlander is indeed a 4-pin square type as you note. This connector is typically found at the rear underside of the vehicle. It may be that your truck has been modified (or that Toyota made a running change)...
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  • Location of Connectors to Install Trailer Wiring Harness on 2014 Toyota Highlander
  • I have confirmed with Tow Ready that the # 118449 is indeed the correct T-Connector for all models of the 2014 Highlander, regardless of if they were equipped with the tow package. I've spoken with my contact at Tow Ready, who tells me that on the 2014 Highlander, both the connectors have been moved from the locations shown in the instructions. Both connectors are now located below the rear threshold in the rear cargo area, as shown in the provided photo.
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  • How to Install Trailer Wiring in a 2014 Toyota Highlander
  • They did change the installation point for the installation of either the Curt Wiring harness part # C56217 or the Tow Ready wiring harness part # 118449 on your 2014 Toyota Highlander. Both Connection points are now at the rear of the vehicle. You will need to open the hatch, remove the rear panels and then just behind the threshold you will see both connectors. Check out the picture I attached. The letter H picture shows both connectors.
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  • Installation of Trailer Wiring Harness on a 2014 Toyota Highlander
  • It is not uncommon for manufacturers to change locations of connection points for wiring harnesses. Then aftermarket companies like Tow Ready have to play catch up. With good information like this we can get ahead of the game! As long as everything works after installation of harness # 118449 on your 2014 Toyota Highlander then the alternate plug-in location should be just fine.
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  • Troubleshooting Trailer Running Lights That Flicker and then Turn Off
  • Sounds like it could be a ground problem, the additional load of the running lights being on your vehicle is too much for the weak grounds and the circuit is shutting off. Or the problem is your trailer taillight circuit is drawing more amperage than the wiring harness is capable of handling. You might try disconnecting a few of the running light circuit clearance lights to see if this allows the lights to illuminate. If so, you will need to convert your trailer to LEDs. I attached a link...
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  • Adding a 4-Way Trailer Connector to a 2011 Toyota Highlander
  • Dealer parts are often more costly than aftermarket parts but that does seem excessive given the parts they say you need. It looks like you ordered # 56042. Which is meant as a replacement 4-Way. You will need the harness you referenced # C56217 to make everything fully functional. It sounds like they are trying to sell you a 7-Way trailer connector. A 30 amp fuse and a relay are items typically associated with a 7-Way trailer connector. If you just need a 4-Way then you would use...
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  • Where is the Underdash Connector to Install Curt Wiring Harness # C56217 in 2014 Toyota Highlander
  • The plug will be between the emergency brake pedal and the brake pedal. Sometimes it can be hard to find, but if you're patient you will find it. I attached a couple pictures that should be helpful as well.
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  • Should Included 10 amp Fuse of the Tow Ready Wiring Harness part # 118248 Be Used or Factory 20 Amp
  • You want to use the included 10 amp fuse that came with the Tow Ready wiring harness part # 118248. The amperage rating of the included fuse was picked because if the voltage exceeds 10 amps on that circuit the wiring harness will fail. It comes down to which you would rather replace in the event of a short, the 10 amp fuse or the # 118248.
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  • How to Determine if a Vehicle Like a 2007 Toyota Highlander has a Tow Package
  • Tow packages usually consist of hitches, wiring, lower gear differentials, transmission coolers and bigger brakes. For most vehicles if you have most of those items then you have the tow package. The final authority would be contacting a Toyota dealer with your VIN number and they will tell you for certain. Since you have the connections already on your 2007 Toyota Highlander it sounds like you have it and the Tow Ready Harness part # 118248, but you still might want to contact your Toyota...
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  • After Installing Trailer Wiring Harness on a 2006 Toyota Highlander Sport Trailer Lights Do Not Work
  • There are some things you can do to determine if the issue is on the harness, # 118413, or somewhere else. First, make sure that the harness is grounded to a clean metal surface. There cannot be any paint where the harness is grounded. Also, if you are using a factory grounding point that is already occupied by 1 or more items then I recommend moving the harness ground elsewhere. Next you will want to test the wires going into the black converter box and the wires coming out. Use a circuit...
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  • 2009 Toyota Highlander Trailer Wire Harness Recommendation
  • Actually the Curt harness part # C56217 that you referenced is the replacement for the older model part # 56034 that you also referenced that is no longer available. With that being said the # C56217 would be the right choice for your 2009 Toyota Highlander and would work well. This harness does use a newer circuit board design than the older model converter boxes. This box uses surface mounted technology which is far superior to the through-hole style that older boxes used. I attached...
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  • Factory Tow Package Connection Point to Install Trailer Wiring on a 2005 Toyota Highlander
  • If your 2005 Toyota Highlander came with the factory tow package then the factory connection point to add a 4-Way will be located behind the driver side interior trim panel in the rear cargo area of the vehicle. You would then use wiring harness # 118248. I have linked a video showing installation and a link to the instructions for you. If that connector is not present on your Highlander then you will need to use harness # 118413. This wiring harness just plugs in line with the vehicle...
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  • Trailer Hitch for a 2014 Toyota Highlander
  • I spoke with my contact at Curt and trailer hitch # C13169 is a fit for the 2014 Toyota Highlander. I have included a link to the installation instructions for you to view. And for trailer wiring you can use # 118449. I also recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with clip, and a storage bag.
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  • Trailer Wiring Harness Recommendation for a 2013 Toyota Highlander
  • The Curt Harness part # C56217 and the Tow Ready Harness part # 118449 that you referenced are two different brands version of the same wiring harness. Both would install the exact same and would work well on your 2013 Toyota Highlander. I am partial to the Curt unit though since it uses a more modern circuit board (surface mount vs. diodes) and can handle a slightly higher amperage draw at 3 amps per stop/turn light circuit and 6 amps per tail light circuit vs. the Tow Ready that can...
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  • Can Tow Ready Wiring Harness # 118413 Be Used in 2007 Toyota Highlander with Factory Tow Package
  • The harness you purchased, part # 118413, as you note is intended for the Highlander without the factory tow package wiring. This harness has separate left- and right-side light functions carried on independent connectors that connect in-line with the tail light wiring. The harness for tow package-equipped Highlanders, part # 118248, has a single connector intended to mate with a properly-equipped harness on the tow-equipped Highlander. Its left- and right-side functions are combined...
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  • Where are Connection Points to Install Curt Wiring Harness part # C56217 on 2014 Toyota Highlander
  • The connection point that is in the rear of your 2014 Toyota Highlander will be on the driver side. You will need to open the tailgate, remove the access panels, scuff panels, trunk floor panels and trays to access the 4-pin connector. There is also another connection point up front on the driver side. It is located underneath the dash on the driver's side between the emergency brake pedal and the brake pedal. I attached installation instructions and a review video of this product...
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  • Will the Curt Class III Trailer Hitch # C13169 Fit a 2014 Toyota Highlander LE Plus
  • I checked with Curt and trailer hitch # C13169 will fit your 2014 Toyota Highlander LE Plus. I have included a link to the installation instructions for you to view. The hitch is currently going through a redesign so that it is a better fit for the 2014 models. If you plan on doing some towing I also recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with clip, and a storage bag. For trailer wiring you can use # 118449.
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  • Location of Trailer Connector on 2014 Toyota Highlander with Tow Prep Package
  • If your vehicle has a functional factory tow package there will be a connector at the rear of the vehicle behind the rear bumper. You may have to remove the trim panels to find it. I have made a diagram of the areas you should check for the OEM wiring connection point. If the connection is not there, I recommend using the Tow Ready Custom Fit Vehicle Wiring for the Toyota Highlander, 2014 # 119147KIT which will allow you to splice into the OEM wiring in the back of the tail lights. I...
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  • Trailer Wiring Harness for a 2012 Toyota Highlander with Factory Towing Prep Package
  • If your 2012 Toyota Highlander came with the factory towing package then it should already have a trailer connector. But if there is no trailer connector you can use either a hardwire harness such as # 119147KIT or the plug in style # 118449. The plug in style is much easier to install. I have linked its instructions and a video showing installation on a 2012 Highlander. I have also included a link to the hitches available for your Highlander if you have not yet decided on one. The most...
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  • Finding the Brake Switch Wire to Install a Brake Controller on a 2014 Toyota Highlander
  • You have to test the brake switch wires with a circuit tester such as # 3808 to determine the correct wire for a brake controller red wire. You want the wire that only has power when the brake pedal is pressed and not with the headlights or turn signals on. On a 2013 Highlander we installed a brake controller on, the brake switch wire was blue. I would start testing with the blue wire on the brake switch if applicable to your 2014.
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  • Trailer Wiring Harness for a 2012 Toyota Highlander with Factory Tow Package
  • For a 2012 Toyota Highlander that has the factory tow package you can use Curt trailer wiring harness # 56042. You can also use Tow Ready wiring harness # 118449 for a model with or without the factory tow package.
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  • 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...
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  • Troubleshooting Curt T-One Connector on 2007 Toyota Highlander
  • Is this a brand-new installation, or has the T-Connector been installed for awhile? As a first step, I would recommend trying a different trailer, if possible. This will help determine if the problem is in the trailer wiring or that of the vehicle. If everything works fine with another trailer, then you have confirmed that the problem is in the trailer wiring. If the lights on the second trailer do the same thing, you have confirmed that the T-Connector is faulty and should be replaced....
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  • LED Trailer Lights Stay on Dim with Curt Wiring Harness 56034 on a 2013 Toyota Highlander
  • Curt trailer wiring harnesses that have a powered converter like # C56034 do have this issue on trailers with LED lights. What is happening is because the converter is using 12 volt vehicle power to power the trailer lights, it is always energized. When the vehicle is off and the trailer lights are not activated normally there is a small amount of power flowing through the system. Since LED lights draw very little power the slight amount of juice flowing through the system will light...
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  • Trailer Wiring Harness Options for a 2001 Toyota Highlander
  • You can use wiring harness # 118413. It is designed for use on a 2001 Toyota Highlander that does not have the factory tow package. Wiring harness # 118245 is for models that came with the factory tow package. On wiring harness # 33425 the 12 volt power connection is what powers the trailer lights. On harness # 118413 it gets the power and signals for the trailer lights through the vehicle wiring. Having a powered converter that connects to the vehicle battery is another way that the...
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  • Will a Trailer Hitch For a 1994 Ford Explorer Fit a 2009 Toyota Highlander
  • Unfortunately, there are no cross compatible trailer hitches that fit both a 1994 Ford Explorer and a 2009 Toyota Highlander. The Hidden Hitch Trailer Hitch # 87615 will fit a 2009 Toyota Highlander. This is a Class III hitch with a 2 inch receiver opening. If you are planning on towing, I recommend the Tow Ready Wiring Harness # 118449 that you referenced. For a ball mount the Ball Mount Kit # 989900 is a solid choice. This kit includes 2 ball mounts, a 1-7/8 inch ball, a 2 inch ball,...
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  • Running Lights Work Intermittently On Trailer Towed by 2009 Toyota Highlander with Curt Harness
  • You can check the vehicle to see if the running light fuse or relay is intact and working properly. After that you can check the signal going into the converter box from the vehicle using a circuit tester like # 3808 if you do not already have one. If the signal is coming in fine from the vehicle with no issues but intermittent on the 4-Way end then the converter is bad and the harness will have to be replaced. If the signal going into the converter is not correct than that means a...
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  • Trailer Right Brake/Turn Light Not Working Using Trailer Wiring Harness on 2006 Toyota Highlander
  • The most likely case is that the box has kicked the bucket and will need to be replaced. Since you are not getting power to the right turn/brake pin on the 4-Way, test the corresponding wire on the input side leading into the converter. If there is no power there either than you will want to check the turn signal fuse or relay for the vehicle. Find it using the owners manual. You can also trying moving the ground wire to a different location. If the issue occurred because of a short...
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  • Which Trailer Wiring Harness for 2007 Toyota Highlander
  • The correct trailer wiring harness for your Highlander will depend on whether or not it is equipped with the tow package and the lighting set-up of the trailer you will be towing. If your Highlander has the tow package, and you will be towing a trailer with very basic lighting (one stop/turn/tail light per side) then the Tow Ready # 118248 would be a good choice. If your lighting is a bit more complex, you would need a harness with a higher rated converter like the Curt # C56107. If...
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  • Trailer Lights Stopped Working Using Trailer Wiring Harness 118449 on a 2009 Toyota Highlander
  • The first thing I would check is the small fuse that is part of the converter box wiring for harness # 118449. If that fuse is loose or blown the whole harness will not work. And if it is blown it is possible that a short on the trailer caused it to blow and until that short is found and fixed it would just keep happening. If the fuse is not blown then the converter box itself could have blown and the harness would not work. You would need to replace the wiring harness. You can also...
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  • Trailer Wiring Harness for a 2005 Toyota Highlander
  • First, on your existing wiring harness, since there is power going in but not coming out on the right side circuit then that does indicate a problem inside the converter and it will need to be replaced. If the harness you currently have looks like # 118248 then that indicates that the vehicle came with the factory tow package. To confirm you can always contact at Toyota dealer and have them run the VIN number to determine how the vehicle is equipped. If your Highlander does not have...
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  • Trailer Wiring Harness Recommendation for a 2003 Toyota Highlander without Factory Tow Package
  • For a 2003 Toyota Highlander without the factory tow package you can use T-connector # 118413. It does not require a connection to the vehicle battery. I have included a link to the instructions and a link to a video showing a typical installation for you.
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  • How to Extend a Trailer Wire 4-way by 12 Inches
  • If I am understanding you correctly you have a 4-way on your 2012 Toyota Highlander but you are looking for a way to extend the wiring of the 4-way by 12 inches. What I would recommend you get would be a 12 inch Car and Trailer End Extension # 9653P. This product will extend your 4-way by exactly 12 inches and should work well for you.
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  • Recommended Trailer Wiring Harness for 2011 Toyota Highlander Hybrid
  • I cannot speak as to why Toyota would offer two different harnesses, one for the hybrid and one for the non-hybrid. If my memory serves correctly, originally Tow Ready and Curt differentiated between the two models, having a different application for each model. The wiring harnesses they now offer, part # 118449 for Tow Ready or # 56034 for Curt have been designed to work with either model. I have spoken with my representatives at both companies, who have confirmed that either harness will...
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  • Will the Curt Wiring Harness for the 2012 Toyota Highlander fit the Hybrid Models also
  • I spoke to my contact at Curt and he informed me that the Curt Custom Fit Vehicle Wiring # C56034 that you referenced should work on your 2012 Toyota Highlander Hybrid. I attached installation instructions for this harness for you to check out also.
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  • Troubleshooting Trailer Running Light on Utility Trailer Towed by 2011 Toyota Highlander
  • It sounds like there is a ground problem on your trailer that may be caused by an accumulation of corrosion either on your trailer connector or the wiring to the light assemblies. I would first check for corrosion and fix as necessary. Next, I would check the trailer connector on your 2011 Highlander for the correct voltage when the different taillight functions are applied. You would need a circuit tester like our part # 3808 to do this. Check out the video I attached that shows how...
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  • Trailer Wiring Harness Connection Location Under the Dash of a 2008 Toyota Highlander Limited
  • In the area on the vehicle where the white connector is located, there is another white connector nearby that appears to be the OBDII port. If that is the connector you see (and it will be mounted to the dash and not hanging) then it is not the correct connector. Take a look at the video I have provided. It will show the connector you are looking for. If you have found the correct connector and it still does not fit, switching to harness # C56034 will not work since it has the same connector...
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  • Troubleshooting Trailer Wiring Harness # C56034 on 2011 Toyota Highlander
  • As a first step, run through the installation instructions again and verify the installation procedure. Ensure that the converter is securely plugged into the connector under the dash. Give the converter a gentle tug to ensure the plug is securely seated into the connector. Do the same with the trailer connector at the rear of the vehicle. Once this is verified, you will need to use a circuit tester like part # 40376 on the trailer connector. Test the pin socket fed by the brown wire...
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  • Trailer Wiring Options for a 2012 Toyota Highlander without Factory Tow Package
  • Both trailer wiring harnesses, # 118449 and # C56217, install and work the same way so you cannot really go wrong with either one. The more popular option is Tow Ready harness # 118449. Curt uses a newer technology in their converter box. I have included installation instructions for each harness for you to view. I have also linked videos showing installation of each harness for you..
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  • Mounting Bracket Recommendation for a 4-Flat Trailer Connector on a 2006 Toyota Highlander Hybrid
  • The bracket that I would recommend to mount a 4-way connector on the outside of your vehicle is the 4-Pole Flat Mounting Bracket, # 18144. This bracket can attach directly to your trailer hitch using the self tapping screws or it can be used with a Universal No-Drill Mount Bracket, # 18140, so you do not have to drill into your trailer hitch. I have attached a video showing how to install this bracket on a Curt trailer hitch for you to check out.
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  • Removing Rear Storage Bin on a 2008 Toyota Highlander to Install a Trailer Wiring Harness
  • The storage bin on the left side of the cargo area on a 2008 Toyota Highlander is held in by the fasteners but it also has some tabs that fit into the side of the cargo area side panels. The resistance you are feeling is probably those tabs still holding on. Take a look at the video I have linked that shows our installer removing the bin to install the harness. He states that it has to be manipulated around the flooring to the right of it to get it to come out.
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  • Activating the Curt Trailer Wiring Harness for a 2008 Toyota Highlander
  • For the Curt wiring harness, # C56034, for a 2008 Toyota Highlander, the harness itself has an inline fuse with the fuse already inserted. You can check that fuse to make sure that it is in place and not blown. There is also a 10 amp mini fuse that needs to be installed in the power distribution box under the hood. This amp goes in position 30 in the fuse panel as indicated in the instructions I have linked. With the fuses in place the harness should work properly. If it does not,...
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  • Can 4-Way Trailer Wiring Harness # 118413 be Routed/Mounted Outside of a 2003 Toyota Highlander
  • You will have to look for a grommet or other exit point at the very bottom of the cargo area of your 2003 Toyota Highlander. Remove the panels above and around the spare tire like you would when installing the wiring harness as shown in the video I have linked for reference. Remove the spare and look for a grommet you can run the harness through. Chance are the grommet will not be large enough to fit the 4-Way plug through. You would have to cut the 4-Way end off a few inches back from...
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  • Right Trailer Lights Dim and Blinker is Not Working on Trailer Towed by a 2008 Toyota Highlander
  • This sounds like it could be a combination of problems though I suspect it is all related to one issue. It sounds like there is a ground problem on the right side of the trailer. To run down the ground, start by checking the vehicle side and trailer side connectors for any dirt or corrosion and clean them out. Next, make sure the main ground on the trailer from the trailer connector is attached to a clean and corrosion free bare metal surface. Then, do the same with the tail lights....
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  • Parts Needed to install a 7-Way on a 2009 Toyota Highlander
  • If you do not have trailer brakes on your trailer you could simply get an Adapter 7 Pole to 4 Pole # 37185. All you would need to do is plug the 4-way in to this adapter, tape up or zip-tie the extra wires that you would not need out of the way and you would be ready to go. If you have a brake controller and plan on using trailer brakes you will need to get a Brake Controller and 7-way Installation Kit # ETBC7. This is very similar to the # 37185 except it also comes with everything...
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  • What is the Correct Trailer Wiring Harness for a 2012 Toyota Highlander
  • For a 2012 Toyota Highlander, you can use Curt wiring harness, # C56034, that you have selected. Installation is fairly straight forward as far as wiring harnesses go. I have included a link to the installation instructions for you. You can see that there is not a whole lot to installing a wiring harness. I have also included a link to the installation instructions for the hitch, part # 13534, and a video showing a typical installation. I also recommend the etrailer ball mount kit, #...
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  • Vehicle Wiring Harness Options for a 2012 Toyota Highlander
  • I spoke with my contact at Curt and verified the Curt T-Connector Wiring Harness, part # C56217, is the correct wiring harness for your 2012 Toyota Highlander. The Tow Ready Wiring Kit, part # 119179KIT, will work on your vehicle, but it will not use the plug-in ports on the vehicle wiring. It will require splicing into the tail light, brake light and turn signal light circuits on your vehicle, but it does come with all tools needed to complete the task. I have included the installation...
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  • Recommended Trailer Wiring Harness for a 2007 Toyota Highlander Without Factory Tow Package
  • The # 33425 Curt wiring harness that you referenced would work well for your 2007 Toyota Highlander, since it does not have the factory tow package. This harness would simply plug in behind your tail light on each side of the vehicle. The # 33425 harness includes a power wire that you will run to the vehicle's positive battery terminal, with the included fuse placed in line. This will help to protect the wiring system on your Highlander from overload, as the power for the harness...
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  • Does Anything Need to Be Changed When Going From Incandescent Bulbs to Led Trailer Lights
  • You should have no problem using the Tow Ready Wiring Harness # 118248 on your 2007 Toyota Highlander with a trailer that has LED tail lights. The only time LED lights require something being changed is when you go from incandescent bulbs on a blinker circuit of a vehicle to LED lights. Then you might have a hyper-flashing situation, but that is not an issue with trailers. It should perform fine with either bulb style on a trailer.
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  • Troubleshooting Brake Light/Turn Signals not Working on a 2004 Toyota Highlander
  • The first thing I would check would be the Tow Ready Wiring Harness # 118413 for voltage on the turn signal and brake circuits. I attached a video that shows how this is done. If you find that your 4-way is not functioning correctly I would go over the installation instructions I attached and make sure all of the connectors are making secure connections. You will also want to make sure the ground strap of this unit is making a good connection. Once you have checked the connections...
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  • Parts Needed to Install a 7-Way Trailer Connector and Brake Controller on a 2001 Toyota Highlander
  • In order to install a 7-Way trailer connector on your 2001 Toyota Highlander, you must first install a 4-Way. There is more than 1 option for you vehicle. If the vehicle came with a factory tow package, you would use # 118245, which is a replacement wiring harness. If your Highlander never came with the wiring harness or tow package, you will need to use # 118413. Installation of this harness is not difficult and I have included a link to the installation details for you. After the 4-Way...
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  • Connection Points for Trailer Wiring on a 2003 Toyota Highlander
  • I would be glad to help you out with adding trailer wiring to your 2003 Toyota Highlander. The Tow Ready Harness, # 118413, is designed to plug in line with the tail light wiring behind each tail light on the vehicle. Inside the rear cargo area, behind the tail lights, there are access panels that allow you to get to the tail light wiring connectors. All you have to do is unplug them and plug in the connectors on the wiring harness in line with the vehicle wiring. Ground the white...
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  • Trailer Wiring Harness for a 2005 Toyota Highlander with Factory Installed Tow Package
  • Since your 2005 Toyota Highlander came with a factory tow package, you would need Tow Package Wiring Harness with 4 Pole Trailer Connector, # 118248. I have included a link to the installation instructions along with a link to a video showing a typical installation for you to view.
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  • Will Trailer Wiring Harness # 118449 Work on a 2011 Toyota Highlander without Tow Package
  • Yes, the T-One Wiring Harness, # 118449, is the correct wiring harness for your 2008 Toyota Highlander. The portion of the harness that plugs in under the dash, see instructions, will convert the vehicles 3 wire system to a two wire system and the output end will plug in on the drivers side at the rear of the vehicle. We have a video installation on a 2010 Highlander that should be very helpful, see link.
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  • Trailer Wiring Harness for 2002 Toyota Highlander
  • The Plug-N-Tow wiring harness you mentioned, part # 33425 is indeed the correct harness for your 2002 Highlander. The harness is pretty easy to install, using existing connectors located behind the tail light assemblies with an additional wire that is ran to the positive battery terminal. Assuming that you already have a drawbar like part # 2923 for a 2 inch receiver or # 36051 for a 1-1/4 inch receiver and the appropriate trailer ball for your trailer, you are good to go.
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  • Recommended Wiring Harness for 2004 Toyota Highlander with Factory Tow Package
  • Since it sounds as if your Highlander is equipped with the tow package, your best bet would be to use the harness designed to be used in vehicles with the tow package, part # 118248. This harness would utilize the factory connector located in the cargo area as shown in the instructions. You could certainly use either the # 118413 or 33425. Each of these harnesses install by plugging inline to the existing wiring behind the tail light assemblies, which would be more complex and time consuming...
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  • Parts Needed to Install a 7-Way Trailer Connector on a 2011 Toyota Highlander
  • To add a 7-Way trailer connector to your 2011 Toyota Highlander, you will want to start with adding the Tow Ready Custom Fit Vehicle Wiring, # 118449, that you have referenced, if the vehicle does not already have a 4-Way connector. In order to have the 4-Way underneath the vehicle, you will need to find a grommet in the bottom of the cargo area, route the plug through it and out to the rear of the vehicle. Make sure to seal up any holes that you may have had to make to route the harness. With...
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  • Installing 4-Pole Trailer Connector Part 118449 on a 2011 Toyota Highlander with Towing Prep Package
  • By Pre-Wired Harness, Toyota means that some, but not all of the wiring has been ran to provide a trailer connector. If the vehicle does not already have the 4-pole connector at the rear bumper, you will need part # 118449. Installation is pretty simple. The harness has two parts, the converter and the 4-pole connector itself. The converter plugs in under the dashboard, and the wiring harness with the 4-pole connector on the end plugs into the connection point located under the floor,...
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  • Instructions for Installing a T-One Wiring Harness # 118449 on a 2011 Toyota Higlander
  • The connector you are looking for is located over on the driver side behind the storage panel in the back of your Highlander near the driver side blinker. You are going to need to remove the rear cargo floor and fold up the forward one and also the driver side cover. To get the storage box out the screws at the bottom as well as the three push fasteners on the inboard side will need to be removed. Once you have removed the storage box you should look on the back side of the exposed...
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  • Is Installation for Tow Ready Trailer Wiring # 118449 the Same on a 2011 Toyota Highlander Hybrid
  • I spoke with my contact at Tow Ready and he said that on the 2011 Toyota Highlander Hybrid model, the location will be the same. The only difference is that with the hybrid model, the harness is in the same location but the panel covers the battery storage area. I have included a link to the installation details and a video for T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, # 118449, for reference.
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  • Function of Under Dash Converter in Trailer Wiring Hanress # 118449 for a 2008 Toyota Highlander
  • On the 2008 Toyota Highlander, the component that connects under the dash is the converter box. This is used to convert the 3 wire vehicle signals into 2 wire signals used by trailers by combining the directional and brake light signals into a single circuit to match the wiring set-up of the trailer. The signals come into the converter which converts then for trailer use and then it sends the converted signals back through the system to the rear of the vehicle where the second harness...
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  • Will this T-One Vehicle Wiring Harness, part # 118449, fit the Highlander Hybrid Limited
  • Yes, the T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, part # 118449, will fit on your 2010 Toyota Highlander Hybrid Limited. I have included a link to a video of the # 118449 being installed on a 2010 Toyota Highlander as well as link to the instructions below for you to check out. You may also need the following items to complete your towing setup: Hidden Hitch Trailer Hitch for the 2010 Toyota Highlander, part # 87452 Ball Mount 3/4 inch Rise or 2 inch Drop, 6,000...
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  • Brake Controller Install on 2010 Toyota Highlander
  • Installing a Brake Controller on your Highlander is certainly possible. As a first step, you will need to choose a brake controller. I would recommend the Tekonsha Prodigy P2, part # 90885. The P2 is our best selling brake controller, and is simple to use and set up. To install the controller, we offer a Brake Controller Installation Kit, part # ETBC7. The kit contains everything necessary to complete the installation, including wire, circuit breakers, hardware and the adapter that will...
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  • How Do I Convert a Dealer Installed 4-Pole into a 5-Pole on a 2010 Toyota Highlander
  • We have a pretty simple little kit that will allow you to up-convert your 4-Pole into a 5-Pole, Tow Ready part # 20036. You will connect it to your existing 4-Pole, then run the included blue lead back upt the 2010 Highlander and behind the tail light assembly. You will need a circuit tester, like part # 3808, to identify which wire feeds the reverse bulb. Have someone in the vehicle put the car in reverse so you can test the wires. Once you have determined which wire carries the reverse...
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  • Correct Trailer Wiring Harness and Installation for a 2005 Toyota Highlander Without Tow Package
  • The connection points for the Tow Ready Custom Fit Vehicle Wiring for the 2005 Highlander by Toyota, item # 118413, are located behind the vehicle tail lights. You will need to remove the drivers side and passengers side access panel to locate rear of the tail lights. The threshold will also be removed and then the connectors will be connected inline with the vehicle tail light wiring connectors. I have provided a link to instructions for you to review.
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  • Parts Needed to Equip a 2007 Toyota Highlander to Tow with Electric Brakes
  • To equip your 2007 Toyota Highlander to tow with electric brakes, you would first need to install a 4-way plug. The 4-way plug for Highlander models equipped with a factory tow package would be wiring harness # 118248. You will also need to install a brake controller. I recommend the Prodigy brake controller # 90185, as it includes a wire pigtail that you will use to hard wire the brake controller to the vehicle. To install the 7-way plug on your Highlander, I recommend brake controller...
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  • Will the T-One Wiring Harness, # 118413, Just Plug and Play Without Additional Wiring to Battery
  • Yes, the T-One Vehicle Wiring Harness, item # 118413, will work on your 2007 Toyota Highlander. You will not have to run a wire to the battery with this wiring harness. I have provided a link to the instructions below. If you are concerned about the vehicles wiring and electronics, or may be towing a trailer with more than two taillights and two side marker lights then a powered converter with circuit protection, like the Plug-N-Tow (TM) Vehicle Wiring Harness, item # 33425, would be...
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  • Routing 4-way Connector To The Outside on a 2005 Toyota Highlander
  • Once you have the rear carpeting and package tray out of the vehicle you should be able to find a grommet, or black rubbery tape, somewhere under the package tray or around the edge of the rear compartment that is large enough to route the 4-way connector, item # 118248, through and close enough so the connector can reach the hitch. If you do not have an access point in the floor area you may need to route the wire up around the drivers side taillight and back down underneath and outside...
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  • How Do I Know If My 2002 Toyota Highlander Has The Tow Package
  • If your vehicle has a functional factory tow package there will be a connector at the rear of the vehicle behind the rear bumper. This connector could possibly be inside a black box that is mounted under the vehicle. If the connector is present you will need to test it with a circuit tester, item # 3808 if you need one, to make sure it has stop, turn and taillight functions. If the factory tow package connector is not present or the wiring is not functional to the connector, you will...
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  • What is The Correct Wiring Harness for a 2009 Toyota Highlander with Tow Package
  • The T-One Vehicle Wiring Harness, item # 118449, is the correct trailer wiring harness for your pre-wired Highlander. This is the only wiring harness for the 2009 Toyota Highlander that does not require hard wiring a harness to the vehicle taillight circuits and running a power wire to the vehicle battery which is much more involved. The instructions for this item (see link) show exactly how and where to make the connections and tell you where to mount the converter box. You wont have...
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  • Wiring Harness for 2008 Toyota Highlander Pre-wired
  • Yes, the 118449 T-One wiring harness is the correct custom-fit wiring harness for your Highlander. If you have a trailer with electric brakes, you will need a brake controller to activate them and a 7-way plug for the back of your Highlander. We have a great selection of brake controllers. I suggest the Prodigy, which is simple to install and operate, and offers a smooth stop. You will also need the ETBC7, which turns the 4-pole plug into a 7-pole plug and also has the wiring to run...
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  • Comparision of Wiring Harness 33425 and 118413 for a 2002 Toyota Highlander
  • You basically answered your own question. The more expensive 33425 wiring harness has circuit protection and is powered so that you can tow trailers with more lighting. You will need to run a wire to the battery from the converter box to use this connector. The 118413 will work fine if you are towing trailers with just one set of lights at the back and no extra lighting. However, it will not protect the vehicle and converter from shorts at the trailer. Both kits come with instructions...
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  • Wiring Harness for a 2003 Toyota Highlander
  • The wiring harness you referred to, product number 118248, will not fit your vehicle. You will need either wiring harness part number 118413 or 33425 for your 2003 Toyota Highlander. If your vehicle has the tow package, please use item number 118245. This is the connector which plugs into the white plug you found. There are instruction sheets for each of the parts listed on their product page. For your convenience, I have attached links to all of the items I referred to. I have also...
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  • Wiring Harness For 2008 Toyota Highlander That Does Not Require Cutting or Splicing of Wires
  • The wiring harness you will need for your 2008 Toyota Highlander is the Tow Ready T-One Vehicle Wiring Harness, part # 118449. This wiring harness does not require any cutting or splicing of wires. It will plug into a connector under the dash and also under the floor panel in the back on the drivers side. I am including a link to the installation instructions on the wiring harness and a link to a video of the harness being installed on a 2008 Highlander.
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  • Will Wiring Harness Part # 118248 Fit a 2007 Toyota Highlander without a Tow Package
  • The 118248 is only for 2007 Highlanders with a tow package. If you do not have a tow package, you would use part # 118413.
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  • T-One Connector 118449 Wiring Harness for a 2008 Toyota Highlander
  • The T-One Connector, part # 118449, is the only wiring harness we offer for the 2008 Toyota Highlander. We stand behind our products and services, and I am completely confident that the, part # 118449, is the correct wiring harness for your 2008 Highlander. It is possible that another after-market manufacturer makes a harness for your vehicle that looks differently, but Draw-Tite is our only manufacturer that makes your wiring harness. It looks like all 2008 Highlanders come with the towing...
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  • Brake Controller Wiring for a 2008 Toyota Hylander Sport
  • You will actually need the T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, item # 118449, for your vehicle and the, item # ETBC7, Brake Controller Installation Kit, along with the brake controller of your choice. I recommend going with a proportional controller, like Tekonhsa Prodigy part # 90185. The following link below will take you to the recommended brake controllers for your Highlander. You will need to hard wire the additional brake, power and auxiliary functions that...
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