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Expert Answers about Custom Fit Vehicle Wiring


  • Test - John Huff
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  • Recommended Wiring Harness for 2010 Mazda 3 and Determining if Vehicle Has LED Tail Lights
  • There are a few different ways to determine if your 2010 Mazda 3 Grand Touring is equipped with LED tail lights. The best and most sure way is to simply contact or visit your local Mazda dealer with your vehicle's VIN. They will be able to tell you with certainly what your vehicle is equipped with. You can also remove the tail light housing and look for the bulbs themselves. An incandescent bulb will look like your standard bulb while an LED will have diodes. Another way is to observe...
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  • Recommended Trailer Wiring Harness for 2016 Volkswagen Golf Sportswagen
  • The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118730 is made specifically to work with your vehicle's components and the only confirmed fit we have for your vehicle. It does have a power draw directly from the battery as you stated so that it can have the power it needs to function correctly without causing issue to your factory electrical system. It has a ModuLite power module that ensures that you get the correct amperage to each circuit as your tail lights require...
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  • How to Test Dim Trailer Lights After Connecting 4 Pole Harness
  • Not to worry, this is a common issue and I will be happy to help you get this issue working. Most likely it's a weak ground for the trailer lighting assemblies or for the entire trailer itself. Try improving the grounds of each assembly by ensuring they are connected to a clean metal surface to see if that will help. Also make sure that the main ground from the trailer wiring is making a solid connection to the trailer frame. The lights usually ground through the mounting studs. If there...
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  • Which Wire of Brake Controller Carries the Output Circuit
  • The white wire of a brake controller is actually the ground circuit. You'll never see voltage put on this wire from a brake controller. The brake output circuit is the blue wire of the controller. The black is for 12 volt power and the red is for stoplight circuit. If you connect the power and ground and then apply the manual override of the controller you will see voltage on the blue wire of the controller.
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  • Troubleshooting Trailer Wiring Where Lights are All Dim
  • Most likely it's a weak ground for the trailer lighting assemblies or for the entire trailer itself. Try improving the grounds of each assembly to see if that help. Also make sure that the main ground from the trailer wiring is making a solid connection to the trailer frame. You should also check to make sure your 4-way to 7-way adapter like the part # 37185 has the ground strap connected like it should.
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  • Installing Trailer Wiring Harness on 2016 Toyota Prius
  • There is not a problem with installing wiring harnesses # 118701 on a 2016 Toyota Prius. We don't have groups we refer to simply because we can't gauge their work and how they treat customers. Any garage you feel comfortable with will be able to install this wiring harness. If you were in the St. Louis area, we'd do it for you. You may alternatively choose to do the installation yourself. It is not a difficult installation because it is customized for your Prius with wiring harness...
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  • Where is Trailer Wiring Connector on 2017 Honda CR-V for Installing Trailer Wiring
  • I attached an install video for the T-One trailer wiring harness part # 118741 that you referenced on a 2017 Honda CR-V just like yours for you to check out. At the 2:30 mark of the video you'll see our installer digging pretty deep into the driver side panel of the vehicle to find the connector you are looking for.
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  • Recommended Brake Controller and Wiring for 2018 Jeep Wrangler JL
  • Absolutely. If your 2018 Jeep Wrangler JL has the 7-way installed, then you will use Wiring Kit # 5506. If your vehicle doesn't have trailer wiring, then you can use the Universal Brake Controller Wiring Kit # ETBC7. This kit comes with everything you need to connect to a 4-way wiring harness. If you don't have that yet, then I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118782. This will install behind the tail lights and draw power directly from...
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  • Can a Converter Box Be Used on a 6 Volt System
  • The Hopkins Tail Light Converter Kit with 4-Way Flat Connector part # HM48895 will not work on a 6 volt system. We also don't have any trailer wiring harnesses with a converter box that will work on a 6 volt system. The issue is with the converter box itself as it is not equipped nor designed to be used on a 6 volt system. However, this converter box will only be needed if the vehicle's lighting circuit cannot handle the additional draw of the trailer lights. As long as the vehicle's lighting...
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  • 4-Flat Wiring Harness for 2016 Ford Transit T250
  • The Curt T-Connector Vehicle Wiring Harness # C56327 will not have anything to do with charging batteries. It simply gives your 2016 Ford Transit T250 a 4-flat harness to power your trailer's lights. To charge your camper's batteries you can simply use a 12V battery charger such as the CTEK # CTEK56158.
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  • Brake Controller and Wiring Recommendation for 1988 Ford E-250 Van
  • You will need to start with a 4-way (if you do not have one). For that you would want the # 119190KIT to install wiring and a brake controller in your 1988 Ford E-250 Van. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend...
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  • 4-Way Trailer Wiring Harness Recommendation for 2008 Honda Odyssey
  • For a 4-way wiring harness confirmed as a fit for your 2008 Honda Odyssey we have the Curt trailer wiring kit part # C56161 which would fit and work well.
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  • Where Does Power Wire of Hopkins Trailer Wiring for 2014 Dodge Durango Run
  • You'd want to attach the power wire to the positive post directly under the seat like you mentioned having. It's kind of glossed over in the install instructions but you need to attach the power wire directly to the battery for it to operate properly.
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  • Adding a Connector on a 2004 Chevy Express to Plug In Wiring Harness # 41155
  • You could wire in harness # PK11998 to those factory wires on your 2004 Chevy Express. If you are only needing a 4-Way connector such as # 41155 then you would not use the blue, black, or yellow wires from PK11998 and can tape them up and tuck them out of the way. The wires on your van will need to be tested with a circuit tester such as # 3808 or a meter if you have one. You cannot go by wire color since there isn't exactly a standard that everyone goes by. On the PK11998 harness...
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  • 2015 Honda Pilot Touring Trailer Wiring Troubleshooting
  • Since you have the running lights on your 2015 Honda Pilot, you can isolate the issue to your towing wiring harness or your vehicle. Use a circuit tester like # 3808 to test each function on your trailer wiring. If each function works at your trailer connection on your vehicle side, then you know the issue is on the trailer side. If this is the case, check the trailer ground wire connection and the ground connections at your tail lights which is often the mounting hardware. If the function...
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  • Recommended Trailer Hitch Receiver and Trailer Wiring Harness for 2012 Ford Focus SE
  • For your 2012 Ford Focus SE, I recommend the Draw-Tite Sportframe Trailer Hitch Receiver - Class I - 1-1/4" # 24872. This is a custom fit for both the sedan and hatchback as they install the same way and I've attached a video to assist. This is a no drill installation but the heat shield underneath will need to be trimmed for fit. For your wiring, I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118548. This will install behind your tail lights...
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  • Does Wiring Harness on 2018 Jeep Wrangler Need Hot Lead to Battery?
  • The T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56407 that fits your 2018 Jeep Wrangler MUST have a hot lead run to the battery because the port you are referencing is not rated to handle additional amperage. Using this instead of a battery can lead to a fire or fried electrical circuits in your vehicle, so please run the hot lead to your Jeep's battery.
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  • Can Both a 4-Way and 7-Way Connector on a 2016 Ford F-350 be Used at the Same Time
  • On a 4- and 7-Way connector such as # 30955 you could potentially use both at the same time but only if the combined power draw is less than what the tow package wiring on the truck is rated for. If you go over what it is rated for it will blow fuses and/or relays depending on how much you are over the rating. Using LED lights will help reduce the amount of draw on the system since they draw a fraction of the power of incandescent bulbs. You can look at how much power draw there...
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  • Brake Controller and Wiring Recommendation for 2007 Kia Sedona
  • Your 2007 Kia Sedona did not have a factory 7-way option, so you will need to start with a 4 way trailer wiring harness like # 118410 which is my recommendation for your vehicle. This harness will install behind your tail lights and will require power from your vehicle battery to protect your vehicle electric system and draw power directly from the battery. I've attached an article to assist with routing this power wire. Then you will use the Universal Installation Kit for Trailer...
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  • Can Gooseneck Trailer Wiring Harness Lay On Truck Bed Floor
  • The only real reason you might not want the excess cord from your gooseneck trailer laying on the bed floor is that it may just expose it a bit more to potential damage during travel, such as from additional items you may have in the truck bed, sitting water, etc. With that being said, this is perfectly fine to do and certainly a better alternative to hanging it over the gooseneck like you mentioned which didn't give you enough slack for making sharp turns. We don't have any specific...
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  • Troubleshooting Trailer Wiring Install on 2010 Jeep Wrangler Unlimited Where Only One Side Worked
  • First thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # 3808 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector are clean...
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  • Brake Controller Recommendation for 2001 Jeep Grand Cherokee with Factory 7-Way
  • Even though you have a factory 7-way on your 2001 Jeep Grand Cherokee you will still need to hardwire the brake controller to it. For a wiring kit to install the brake controller and the 7-way adapter you would want the Wiring Kit for 2 and 4 Brake Electric Brake Controllers # 5506. This will provide the power source and ground for the wiring for the brake controller. You will need to test the wires from the brake pedal switch of your vehicle to find a circuit that has voltage when the...
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  • Troubleshooting Curt Trailer Wiring Harness 2013 Hyundai Sante Fe Installed on 2013 Hyundai Santa Fe
  • First thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # 3808 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. Make sure that the trailer side connector are clean...
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  • Does Hopkins Plug In Trailer Wirking Kit # HM11141150 Fit 2017 Chevy Traverse
  • Yes, the Hopkins kit part # HM11141150 has been officially carried over for the 2017 Chevy Traverse like what you have. The packaging you have must be old as it does fit the 2017.
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  • Trailer Turn Signals Don't Work After Installing T-Connector # C55379 on a 1996 Toyota tacoma
  • If the brake lights and running lights work on your trailer but not the turn signals then I don't think the issue is with the Curt T-Connector # C55379 on your 1996 Toyota Tacoma. I think it is on your trailer. Nevertheless you can still verify that the Curt T-Connector is working properly by using a circuit tester # 3808 to test the carious light functions. The running lights will be on the brown wire while the green will carry the right turn/stop and the yellow will carry the left...
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  • Troubleshooting Turn Signals Not Working on Trailer
  • In many cases a bad ground is to blame for this type of issue, but in order to determine the specific problem you'll need to use a circuit tester such as # 3808 to test the connector on your 2005 Nissan Frontier after disconnecting it from your trailer. Check the wiring going into your harness from your tail lights to see if those wires are carrying the correct signals, if not then the issue is with the vehicle wiring. If the signals going to your harness are okay, you'll need to test the...
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  • What Functions do Wires for 7-Way Connector on 2002 Chevrolet Silverado Connect to
  • If you are installing a 7-Way connector, like the Hopkins # HM41145, on your 2002 Chevrolet Silverado the typical wire colors are for the following functions: Red - Left turn and stop White - Ground Blue - Electric brakes Green - Right turn and stop Black - Battery Brown - Running lights Yellow - Reverse lights Although these are the typical wiring colors it can vary by manufacturer. The best way to know that you installed the 7-Way correctly is to verify the function of each...
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  • Brake Controller Installation on 2017 Expedition XLT
  • If you are installing a brake controller like the Prodigy P3 # 90195 on your 2017 Expedition XLT and you cannot locate the wires for the hot lead you will need to run your own wire to your Expedition's battery and connect it to a circuit breaker with Wiring Kit # 5506.
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  • Prodigy P3 Brake Controller Installation in 2018 Jeep JL Wrangler without Tow Package
  • Brake controllers like the excellent Prodigy P3 # 90195 use the vehicle brake light switch to deliver the electrical signal that tells the controller your vehicle is braking, and from there the built-in accelerometer sensor determines the amount of braking power that needs to be sent to the trailer's brakes. This is how all proportional type brake controllers operate. They take in the triggering electrical signal from the pedal and then proportionally deliver brake power to match the rate...
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  • Trailer Brake Controller and 7-Way Installation on 2012 Mercedes-Benz GLK 350 4-Matic
  • We can help you upgrade the trailer wiring on your 2012 Mercedes-Benz GLK 350 to the 7-way type to enable use of a trailer brake controller like the excellent Prodigy P3 # 90195. Kit # ETBC7 includes a 7-way vehicle socket and all of the connectors and components needed to install a brake controller. This will be a hardwire installation as shown in the linked article and video which shows a Mercedes-Benz install. You can avoid the connection issues and hassles of using wiring adapters...
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  • 2018 Jeep Wrangler Unlimited Rubicon Trailer Wiring Harness Recommendation
  • For your 2018 Jeep Wrangler Unlimited JL Rubicon the T-One 4-way harness part # 118782 is a confirmed fit that will not cause any dash lights to come on. This would be a great solution. This is our most reliable trailer wiring brand so we recommend it the highest. It installs by plugging inline with your taillight assemblies which allows it to function without the vehicle wiring even knowing it's there.
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  • Does 1989 Mazda B2600 Need Powered Converter?
  • To answer your first question, no, you will not need to use a powered converter with your 1989 Mazda B2600. As for your second question, for separate signals you will simply need to install the Vehicle to Vehicle Tail Light Converter # C56196 and you'd be set.
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  • Should Vehicle Battery Be Disconnected Before Installing Curt Wiring Harness C56208
  • It is always a good idea to disconnect a battery terminal before installing any electrical device, including a wiring harness, on any vehicle. It is likely that our video team just edited that specific step from the video. Since Curt 4-pole harness # C56208 does require a +12V power connection at the battery this step will help avoid the risk of an accidental short that could cause injury and/or damage the item being installed.
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  • Best Trailer Wiring Harness Recommendation for 2015 Honda CR-V
  • For trailer wiring the brand we have the best luck with is Tekonsha. They are the most reliable and overall give us the fewest problems. The majority of the time we have an issue with a wiring harness it's a Curt brand. And they've redesigned a few times with the same result. So for your 2015 Honda CR-V you'd want the # 118561 which is a confirmed fit and will work well. I attached an install video for you to check out as well.
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  • Wiring Kit That Fits 2017 Chrysler Pacifica LX
  • Yes, I can confrim for you that the Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56399 WILL fit your 2017 Chrysler Pacifica LX. This connector fits both the LX and the Touring models and will work for you.
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  • Adding 7-Way Trailer Connector and Brake Controller to 2015 Toyota Highlander Limited Platinum
  • Your pictures did not make it through so please email them to me by responding to this message. In the meantime the easiest way to determine if a vehicle has the factory tow package is to have the dealer run the VIN in their system and they should be able to tell you how the vehicle is equipped. You can also tell me the VIN and I can run it through some decoders to see if I can figure it out. It is possible for some vehicles to have the tow package wiring but not have the factory...
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  • How to Replace the USCAR Connector on a Trailer Wiring Harness
  • In order to determine the correct function of the wires that are included with the Ford Replacement OEM Tow Package Wiring Harness part # 118242 you are going to want to plug the harness into the vehicle and have a friend sit in the cab and operate the signals while you are testing them with a circuit tester like part # 3808. It does not appear that the wires leading into the USCAR connector follow the RV standard 7-way wiring colors exactly. In order to replace the USCAR connector and...
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  • Will a Wiring Harness Extension Work with the T-One Vehicle Wiring Harness Part # 118372
  • The 4-way wiring harness extension I recommend for the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118372 on your 2002 Suzuki Grand Vitara is the Hopkins Endurance Easy-Pull 4-Flat Extension part # HM47004 which measures 24". I reached out to my contact at Tekonsha and they stated that you should have absolutely no problems using this extension with your wiring harness. If you do have troubles please let me know what those are and I would be happy to offer...
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  • Installation of 4-Pole Wiring Harness in 2017 Nissan NV 3500
  • To install the T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56148 in your 2017 Nissan NV 3500 you only need to plug it into your Nissan's tail light wiring harness, which you can find in your van's rear cargo area and then wire a hot lead to the battery. I have added a cut out of the directions for you to check out, and the full installation instructions are also linked.
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  • How to Locate the Reverse Sensor Connector on a 2018 Honda Pilot
  • There are two connectors on the T-One Vehicle Wiring Harness for Factory Tow Package part # 118760 that you will need to plug into your 2018 Honda Pilot in order to activate the wiring harness. There is one with several wires that contains the functions for taillights and there is one that only contains one blue wire which is for the reverse sensors so they can still function. The installation instructions for this wiring harness state to just remove the access panel inside of the storage...
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  • Troubleshooting Installation of Tekonsha 7-Way Wiring Harness 118286 in 2018 Honda Pilot
  • Tekonsha 7-way wiring harness # 118286 (and the discontinued harness 118274 that it replaces) are correct fits for your 2018 Honda Pilot. Since your Pilot does not have the backup sensors you will NOT connect the separate plug with the blue wire. If you installed all fuses (both in the engine compartment and in the receptacle on the harness near the converter box) and all of your connectors are fully seated together what I suggest is testing the wiring leading into the converter. These...
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  • Troubleshooting Installation of Curt 4-Pole Wiring Harness C55378 in 2002 Toyota Tundra
  • The two wiring harness kits you referenced, Curt # C55378 and Tekonsha # 118378, are both correct fits for your 2002 Toyota Tundra. Both of these kits are multi-part harnesses that include the required fuse/fuse holder and the installation of the Curt kit in a 2002 Tundra is shown in the linked video. The troubleshooting steps I suggest are to double-check that all connectors have no bent or damaged contacts, that they are fully seated together and that the ring terminal on the harness...
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  • 4-Way Trailer Wiring Recommendation for 2015 Chevy Equinox
  • We carry a great 4-way solution that does fit your 2015 Chevy Equinox but it is not the part # 118319 you mentioned. Intsead you'd want the part # 56094 which is a confirmed fit and would work great. I attached an install video for more info as well.
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  • Troubleshooting Trailer Wiring Blinkers that Do Not Work After Second Harness Install on Vehicle
  • That makes me think that the problem is related to your tow vehicle and not the trailer wiring harness like the part # 118644. Have you check the turn signal fuses on your Sonata? Does the blinker seem to work fine on the vehicle? have you tried using a circuit tester like # 3808 to test the pins of the 4-way for voltage when blinkers are on?
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  • Trailer Wiring Recommendation for 2016 Jeep Grand Cherokee without Tow Package
  • For trailer wiring that is confirmed as a fit for your 2016 Jeep Grand Cherokee that does not require ECU flashing we have the T-One kit part # 118727 which will install by plugging inline with the factory taillight harnesses your vehicle has currently and does not require an ECU flash. I attached an install video for this harness for you to check out as well.
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  • Troubleshooting Trailer Taillight Blinkers that Both Flash When Either is Applied
  • First thing you should do at this point is test the 4-way of the wiring harness with a circuit tester part # 3808 for voltage on all of the right pins when the taillight signals are being applied. Just like in the video I attached. If the voltage checks out there but the trailer lights still don't function right then the problem is on the trailer wiring. That would mean that problem is either due to a ground issue or a short issue. I suspect you have a short between the blinker circuits...
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  • Parts Needed to Bypass TIPM of 2006 Dodge Ram 2500 for Trailer Wiring
  • Your 2006 Dodge Ram 2500 is a generation of Dodge truck that uses a very bizzare trailer wiring setup. It has a TIPM which manages the trailer wiring. If it shorts out you can only reset it so many times (at a crazy price) until you have to just buy a new one. It's a God-awful setup if you ask me, but we do have a solution that allows you to bypass that if you are okay with a little bit of wiring. The best way around the TIPM is to bypass it all together with the trailer wiring. For...
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  • Availability of 4-Way Trailer Wiring Harness Recommendation for 1997 Ford Super Duty Van
  • It sounds like you are looking for a 4-way like the Curt part # C55316 which is a confirmed fit for your 1997 Ford Super Duty and has the style of connector you mentioned. Round connector but pins arranged in a square-like pattern. Check out the picture I attached for more info. If this is not what you need send me a picture of what you have and I'll take a look.
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  • Fuse Locations for Trailer Running Lights on 2011 Ram 2500
  • I took a look at the online version of the owner's manual for your 2011 Ram 2500 and found a couple of fuses you will want to check inside the power module located in the engine compartment. There should be a 40 amp green fuse located in the J01 position and a 20 amp blue fuse in the J14 position. Both of these fuses are related to trailer lights so you will want to check to make sure they are present and in good condition. If the fuses are good and you are having issues with the trailer...
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  • Vehicle Wiring Harness with 4-Pole Flat Trailer Connector For 2018 Toyota Sienna
  • The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56261 is the correct 4-way for the 2018 Toyota Sienna SLE. The etrailer.com Ball Mount Kit for 2" Hitches 7,500 lbs # 989900 is an excellent product to consider. It includes two ball mounts, two hitch balls and pin & clips. If your hitch or trailer has a different towing capacity, or if your trailer has brakes, contact me back, I can make tailored recommendations according to those specifications.
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  • Determining if Trailer Brakes are Needed for 2006 Aliner Being Pulled by Jeep Renegade
  • Generally speaking, trailer brakes and a brake controller are recommended when the gross trailer weight (loaded and ready for a trip) is greater than 1/2 of the tow vehicle's weight, or over 2,500 pounds. You mentioned that the Aliner Camper has a gross weight of 3,000 pounds, but you are going to be limited by the 2,000 pound capacity of your trailer hitch. As long as you are sure that the camper's loaded weight will not exceed your hitch's and Jeep's 2,000 pound limit, a brake controller...
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  • Locating Red Wire in Rear Cargo Door When Installing Tekonsha Wiring Harness # 22119
  • I spoke with my contact at Tekonsha regarding the OEM Replacement Vehicle Wiring Harness # 22119 that you are installing on your 2015 Toyota Highlander. He said that if you found more than one red wire in your cargo door harness, your best option for ensuring that you tap into the correct one is to simply test them for function using a circuit tester like # 3808. You are just looking for a reverse light circuit wire. You can have a buddy activate the reverse lights on the vehicle while...
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  • Recommended Trailer Wiring Harness for 1996 Ford Contour
  • Your 1996 Ford Contour does indeed have a combined wiring system, meaning the brake and turn signals are sent along the same wire. If you are needing to install a 4-Way wiring harness for towing a small trailer, I recommend the Tekonsha 4-Pole Hardwire Kit # 18252. This universal hardwire kit is designed for combined vehicle wiring and includes a circuit tester to help with installation. I have attached the written installation instructions that you can take a look at.
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  • Troubleshooting Trailer Lights and Brakes After Rainstorm
  • Since the issue you are describing after the rainstorm is the same on two different trailers, it definitely appears to be coming from your Ford F-150. With that being said, I still recommend using a circuit tester like # 3808 to test the pins on the truck's 7-Way for function. Have a buddy run through the light functions in the cab while you test the pins. If you don't get any power, then you know for sure the problem is on the truck. Since water got into connector, I recommend inspecting...
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  • Trailer Wiring Harness 56083 Not Working After Installation on a 2011 Lexus RX 350
  • Did the dealer say it didn't need to be reprogrammed or that your 2011 Lexus RX 350 doesn't have the factory tow package? Because if it does not have the factory tow package then you would need to install a different wiring harness, # 118478. I have linked a video showing how it installs. If it does have the factory tow package then re-check the following fuses: Under the hood locations 43 and 44; Driver's side instrument panel fuse box location 22. If those are all good to go then you...
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  • Parts Needed to Install Brake Controler in 2011 Jeep Grand Cherokee
  • You will need to start with a 4-way (if you do not have one). For that you would want the # 118425 which is a confirmed fit for your 2011 Jeep Grand Cherokee. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For a brake controller I would recommend the Prodigy...
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  • Trailer Wiring Recommendation for 2014 Hyundai Santa Fe Sport
  • For your 2014 Hyundai Santa Fe Sport without the tow package we have the Curt trailer wiring harness part # C56184 as a confirmed fit that would work well. I attached an install video for this kit for you to check out too. I double checked with Curt that it fits your exact vehicle configuration too and it does.
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  • 7-Way and Brake Controller Recommendation for 2013 Honda Ridgeline
  • We have what you'd need to install a 7-way and brake controller in your 2013 Honda Ridgeline that has no trailer wiring currently. You will need to start with a 4-way. For that you would want the # 118491. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. For...
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  • Where to Find the Fuse and Relay Locations and Functions on a 2012 Nissan Pathfinder
  • I checked the owner's manual for the 2012 Nissan Pathfinder but they only show where the various fuse panels are. What you will need to do is check the lids of those panels for the fuse and relay locations and functions. There is one fuse panel under the hood and another behind a lid in the glove compartment.
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  • Recommended 7-Way Wiring for 2005 Jeep Liberty without Tow Package
  • We do have what you need to install a fully-functional 7-Way on your Jeep Liberty, however there is not a direct plug-and-play option like what you are looking for that would allow you to plug your existing 7-Way to a factory port on your vehicle. In order to install a 7-Way, you will want to start by adding a 4-Way connector. I recommend the Tekonsha T-One Vehicle Wiring Harness # 118524. This custom harness will install by plugging into factory ports behind the driver and passenger...
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  • Troubleshooting Trailer Lighting Brake Lights Not Functioning on 2008 Chevy Trailblazer
  • Check the third brake light fuse of your 2008 Chevy Trailblazer. It sounds like that circuit is blown and because of that is not allowing your trailer brake lights to illuminate. This is a common problem for Chevy vehicles like yours.
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  • Left Turn Signal Blows After Trailer Wiring Harness Install on a 2011 Buick Enclave
  • There is always a possibility that the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118450 is faulty but I would say that 90% of the time this is not the case. For starters, you will need to inspect the pins inside of each connector that goes to the taillight to ensure they are not bent or broken. If they are then this is what is likely causing the short. If the pins are not bent/broken then I would begin to trace the left turn signal wire from the harness to the...
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  • 7 and 4-Way Recommendation for 2018 Ford Explorer without Tow Package
  • Your best option for installing both a 7-way and a 4-way on your 2018 Ford Explorer without the tow package is the T-One 7-way kit part # 118272 that you referenced and then swapping the 7-way out for the # HM40975 so that you have both connector styles. Once you do that you'd be set!
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  • Troubleshooting Trailer Lights with a 1993 Jeep Cherokee
  • Typically when lighting problems pop up in a towing situation it is due to a bad ground. If you installed a converter like part # C59236 then I would start off by checking the ground wire. Make sure that it is secure and connected to a clean, bare-metal surface as even some paint can cause issues. If that looks good then double check your Jeep and trailer connectors to make sure they are clean and free of any debris. Next use a circuit tester like part # 3808 to test the 4-Way on your...
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  • 4-Way Trailer Wiring Kit Recommendation for 2013 Volkswagen Tiguan with 7-Way Wiring
  • Sounds like your 2013 Volkswagen Tiguan has a round connector with 7-wires running to it which is designed for plugging into a 7-way. So what you could do for a 4-way would be the part # C55384 which will plug right in and you'd be set. Or if you wanted a 7-way and a 4-way you'd want the part # 74682.
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  • How to Test Trailer Wiring for 2016 Jeep Compass to Determine if 4-Way is Functional
  • Try plugging in a trailer to the 4-way of the # C56344 and you should find that it works fine. Testing the wiring on the input side of the box doesn't always tell you if the harness is working. If you wanted to further test the wiring though test the pins of the 4-way. The brown wire should have only running lights, yellow should have left turn/stop, and green should have right turn/stop.
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  • Troubleshooting Tekonsha Mark 12 Brake Controller
  • The Tekonsha mark 12 brake controller is a pretty old controller. On ebay people are selling them as "vintage" brake controllers which is pretty funny. It sounds like the gain needs to be adjusted up since it can put out 12 volts when you use the manual override lever but only 2 when you use the brake pedal. Try to adjust the gain or power setting higher to see if that makes it put out more voltage. If not, then due to the age of the controller I would not be surprised if it has internal...
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  • Recommended 7-Way Connector for 2014 Toyota Tacoma
  • If your 2014 Toyota Tacoma did not come equipped with a factory 7-Way connector, you will need to start by using a 4-Way harness (if you don't already have one). For this I recommend the Tekonsha T-One Vehicle Wiring Harness # 118496. This custom harness will install by simply plugging into factory ports behind the driver and passenger side tail lights. With the 4-Way installed, you can then use the Universal Wiring Kit # ETBC7. This kit includes everything needed to convert the 4-Way...
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  • Parts Needed to Add a Trailer Hitch and Wiring Harness on a 2016 Buick Enclave
  • If you are wanting to add a trailer hitch and a wiring harness to your 2016 Buick Enclave I recommend installing the Draw-Tite Max-Frame Trailer Hitch Receiver # 75528 and then either the T-One # 118270 for a 4-Way or the T-One # 118271 for a 7-Way. If you would like to have both a 4-Way and a 7-Way then install the T-One # 118271 and swap out the connector with the Hopkins # HM40920. To mount the 4-Way near your receiver you need part # 18144 while the 7-Way requires part # 18138. Instructions...
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  • Troubleshooting Installation of Curt Wiring Harness on 2015 Honda CR-V EX-L
  • My contact at Curt Tech said their harness # C56158 is a fit for your vehicle. He said that some later model vehicles had a second blue connector that had the wire you are seeking, so you may want to grab a flashlight and see if there is another blue connector. He also said to make sure your fuse is in the correct location in your box. I've attached a video as well as their installation instructions to help further. If you need further help, let me know.
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  • Running Lights Stay On 2013 Volkswagen Tiguan
  • I looked up your order and found that you had purchased the Curt T-Connector Vehicle Wiring Harness part # C56358. The issue you are describing is undoubtedly caused by a faulty converter box. Unfortunately, the converter box is an electrical component which means that it can fail at any time. Although weather is certainly a factory in regards to the longevity of the product I would say that vibrations is the number one cause of failure, especially with the Curt converter boxes. The unit...
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  • How to Add a Trailer Connector to a 2018 Jeep Grand Cherokee
  • I do not believe all 2018 Jeep Grand Cherokees came with a factory trailer connector. In order to add one you will want to first look under the vehicle's rear bumper near the spare tire for a USCAR car plug which I have attached a photo of for you. The plug may be taped to an existing wiring harness. If you have this plug then you can use part # C55384 to add a 4-way trailer connector or part # C55774 to add a 4 and 7-way trailer connector. I have attached install videos of both harnesses...
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  • What is the Difference Between the Tekonsha # 118249 and the Curt C55593 for a 2009 Mazda CX-7
  • If you already have the plug-in that is behind the passenger side trim panel then I recommend going with the Tekonsha # 118249 over the Curt # C55593 for your 2009 Mazda CX-7. These are essentially the same product, but we have found that the Tekonsha products tend to be the most reliable when it comes to wiring and electronics. I have attached an installation video of this wiring harness being installed on a 2008 CX-7 for you to reference. When it comes to choosing the correct Bearing...
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  • Adding 7-Way and 4-Way Connectors to a 2018 Toyota Tacoma Without the Tow Package
  • The best (and easiest) wiring kit that we have for your 2018 Toyota Tacoma (without the tow package) is the Tekonsha OEM Replacement Vehicle Wiring Harness # 22117. This comes with everything needed to add a fully functioning 7-Way and 4-Way on your pickup. It connects your basic lighting functions with the T-Connectors that you mentioned and has the rest of the wiring bundled in a loom to make running them up to your cab/engine compartment much easier. This kit even comes with a pigtail...
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  • Troubleshooting Trailer Wiring Running Lights Not Functioning After Wiring Install
  • Sonds like the problem is the trailer wiring kit part # C56407 that you referenced. Typically when this happens if you unplug and replug the connectors of the kit back in the circuit will make the appropriate contact and the circuit will come back on. So what you'll want to do if that does not fix the problem is use a circuit tester like # 3808 to test the brown wire that comes off of the connector than runs to the left taillight (one with yellow wire) to see if there is voltage there...
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  • Trailer Wiring Recommendation for 2013 Volkswagen Tiguan
  • What you described sounds like a shorted out converter box on the trailer wiring you installed. The converter boxes of trailer wiring are designed to take themselves out before allowing a short from trailer wiring to make it to the vehicle wiring. We've also noticed that Curt converter boxes typically short out easier than other brands. So best option will be to replace your Curt kit on your 2013 Volkswagen Tiguan with a Tow Ready harness part # 118675 after tracking down what caused the...
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  • Wiring Needed to Use a Prodigy P3 on a 2013 Kia Sorento
  • It depends on what kind of lighting you have on your 2013 Kia Sorento. If you just have a 4-Way connector, like what comes on the Tekonsha T-One # 118269, then you do need some additional wiring as the T-One only operates the basic lighting functions on your trailer. To use the Prodigy P3 # 90195 with your Sorento you need to have a fully functioning 7-Way. If you don't already have a fully functioning 7-Way you need to install the Universal Wiring Kit # ETBC7. This comes with all of...
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  • Trailer Running Lights Not Working when Connected to 2017 Ford Transit T250
  • You can determine if the vehicle side is the issue by testing its trailer connector with a circuit tester such as # 3808 or a meter if you have one. If the running light pin shows power when the vehicle headlights are on then the issue is on the trailer side. If it does not show power then the issue is on the vehicle side. The easiest thing to check is the trailer connector itself (on the vehicle and on the trailer). If there is enough corrosion then there won't be a good connection...
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  • Installing a 7-Way Trailer Connection on a 2000 Toyota Tundra
  • The Hopkins Plug-In Simple Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Flat Connectors # HM43385 is a fit for 2003 - 2006 Toyota Tundra with factory 7-Way. For your 2000 Toyota Tundra, there is only a 4-way trailer connector available so you will want to start with the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118367 and then add the Universal Brake controller wiring kit # ETBC7 for the 4-way and 7-way. Then you will need a brake controller like...
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  • Fifth Wheel/Gooseneck 7-Way Recommendation for 2004 Ford F-250
  • Sounds like you are looking for a fifth wheel/gooseneck 7-way setup that is a confirmed fit for your 2004 Ford F-250. For that we have the Draw Tite kit part # 20110 that is a confirmed fit and would work well. I attached an install video for this for you to check out as well.
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  • Trailer Wiring Recommendation for 2015 Lexus RX 350
  • Based on our experiences and what you listed as having in your 2015 Lexus RX 350 all you'd need for trailer wiring is the 4-way kit part # 56083 that you referenced and you'd be set. I attached an install video for thits for you to check out too but I believe you may have viewed it already. Since you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise...
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  • 7-Way Trailer Wiring Recommendation for 2011 Nissan Xterra
  • For 7-way wiring for your 2011 Nissan Xterra we have the Tekonsha kit part # 118266 which comes with the harnesses, connectors, and relays. We don't have any portion of this kit available separately.
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  • 7-Way Adapter Recommendation for Land Rover Towing Trailer with LED Taillights
  • Adapters like the Curt part # C57003 are designed for use on vehicles that will show a "bulb out" error code if towing a trailer with LED taillights like what your 2014 Land Rover LR4 would have. This would would well for you if your trailer and vehicle has a 7-way and you are getting that error code.
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  • Recommended Trailer Wiring Harness for a 2017 Toyota Tacoma
  • I do have a plug-in trailer wiring harness that will fit your 2017 Toyota Tacoma but the plug you are referring to is not used for the trailer lights. For your Tacoma, I recommend the Curt T-Connector Vehicle Wiring Harness part # C56349 which actually plugs in behind the taillights as you can see in the attached instructions. This kit will provide you with a 4-way trailer connector. If you need a 7-way trailer connector then in addition to the Curt harness you are also going to need...
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  • Is a Converter Box Needed for Trailer Lights on a 1991 Toyota Pickup
  • Your 1991 Toyota Pickup has a separate wiring system which means that the brake and turn signals are on seperate circuits. If the lights on your trailer use one light for both the turn and brake signal then yes you would indeed need a converter box. For this, I recommend the Hopkins Plug-In Simple Vehicle Wiring Harness part # HM43315 which is a plug and play harness that will not require any cutting or splitting. The converter box is integrated into the harness so no additional wiring...
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  • Recommended Trailer Brake Controller for 2017 Chevy Equinox
  • We have everything you need to get you set up to use a brake controller with your 2017 Chevy Equinox so you can pull your Rockwood camper. I assume you do not have the factory 7-way or tow package on your 2017 Chevy Equinox so you need to start by adding a 4-way, the T-One Harness # 118494. You will also need the Universal Installation Kit for Trailer Brake Controller # ETBC7, which will give you a 7- and 4-way trailer connector, circuit breakers and the rest of the hardware needed to...
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  • Choosing Between Hard-Wire and ZCI Zero Contact Wiring Harness Kits for 2014 BMW X5
  • For your 2014 BMW X5 the two 4-pole wiring kits you referenced, hard-wire kit # 119190KIT and the ZCI no-splice kit # 119250KIT, both will provide the same basic lighting signals for a trailer but they differ a lot in price and in the nature of their installation. The ZCI kit is ideal for those with a leased vehicle that cannot be modified, for those that simply have no interest in cutting into the wires of their premium vehicle and for those that may soon change cars and wish to avoid...
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  • Will the Barman # 51-97-410 Fit a 2017 Ford F-250
  • Yes! The 5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug # 51-97-410 is compatible with any wiring system that uses the US Car Connector. Since your 2017 Ford F-250 has a US Car Connector this will work pertect for your.
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  • Will the 7-Way Trailer Adapter # C57003 Activate Trailer Brakes when Used on a 2014 VW Tiguan
  • Any brake controller should be on a separate pin from the turn/brake light circuits so using the 7-Way Trailer Adapter # C57003 should not activate the brakes on your trailer (see attached picture). With that being said, there could be something going on with the wiring on your 2014 Volkswagen Tiguan that the techs are aware about if you are using an OEM controller. Any controller should be tied to a signal that only activates when your brake pedal is pushed so if they are saying that...
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  • 4-Pole Trailer Wiring Harness for 2014 Ford Transit Connect
  • Many of the 4-pole trailer wiring kits we sell will install at the vehicle's tail lights. The harness connectors on such kits install in between the vehicle plugs and the tail lights themselves. For the 2014 Ford Transit Connect we have three such products, all shown on the linked page, and all of these use custom connectors selected to match those on your vehicle. Of the three we have I recommend the Tekonsha # 118613 since we find their wiring products to be the most reliable. If...
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  • 7-Way, Weight Distribution and Brake Controller Recommendation for 2013 Jeep Wrangler Unlimited
  • You will need to start with a 4-way (if you do not have one). For that you would want the # 118416 which is a confirmed fit for your 2013 Jeep Wrangler Unlimited. From there you would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. This will also complete the wiring for a functional...
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  • Troubleshooting Trailer Wiring Install that Shows No Blinkers but Other Circuits are Active
  • If you test the pins of the 4-way right now do they flash with the blinkers? It's bizzare that the higher drawing circuits of stop and running lights would work but the blinkers would not. Typically that's a converter box issue so let me know if those circuits test positive with a tester. If not test the input side of the box too to see if the correct voltage is making it into the box. If not, then the issue is connections.
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  • 7 and 4-Way Trailer Wiring Recommendation for 2006 Nissan Xterra
  • If your 2006 Nissan Xterra has a round connector like what you see in the attached picture for trailer wiring then all you'd need is the # 30955 and you'd have a 4 and 7-way setup that will easily install. If instead you have something different you'd want the # 30955 plus the Curt connector kit part # C56226 and you'd be set.
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  • Best 4-Way Trailer Wiring Kit Recommendation for 2018 Jeep JL Wrangler
  • The best choice for 4-way trailer wiring for your 2018 Jeep Wrangler JL is the T-One kit part # 118782. Reason is it has higher amperage ratings so it would be more difficult to short out and because T-One in general just makes more reliable trailer wiring for vehicles.
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  • T-One Wiring Harness for 2018 VW Golf TSI
  • There is T-One Wiring Harness available for your 2018 VW Golf that does not require splicing, the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118646. You can plug in the T-connectors and then only need to run a hot lead to your VW's battery and you'll be set.
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  • Is There a Seperate Fuse for the Right and Left Hand Turn Signals on a Trailer
  • There is more than likely a separate fuse and or relay that controls the right side trailer brake/turn signals and the left side trailer brake/turn signals. This fuse should be located in the power distribution center under the hood of the vehicle next to the engine but it could also be in the interior fuse box. If you can let me know the year on your Envoy I would be glad to let you know which fuse/relay to check. If not then you can find this information in your owner's manual or printed...
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  • Converting 4-Way Trailer Connector to a 4- and 7-Way Connector on a 2017 Jeep Wrangler Unlimited
  • Take a look at how the factory 4-way of your 2017 Jeep Wrangler Unlimited is installed. Follow the harness to see where it plugs in. If it has a rectangular connector like the # HM40975-11933 plugs into then this will work for you. You also will need to add wiring using our # 5506 kit in order to install a brake controller. If your Jeep's 4-way doesn't plug in using that type of connector, or if you just want to run everything new instead of having to find the correct wires in the...
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  • Curt Wiring Harness Compatibility with 2018 Ford Transit Connect
  • I reached out to my tech contact at Curt and they have confirmed the fit of the wiring harness # C56218 for the 2018 Ford Transit Connect on the Titanium, XL, and XLT trim packages. Do you have a different trim package?
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  • Wiring Solution to Convert Pop-Up Camper Trailer to 7-Way RV Wiring Format
  • We do not offer 6-pin wiring kits for your B Series pickup but we can offer you a solution for connecting your pop-up camper trailer. Since the majority of vehicles and RVs now use the 7-way blade style setup I suggest you install this type of wiring on the trailer. This is a straightforward process using a 7-way/junction box combo item # 277-000141 or # ET7WK. The junction box makes it easy to connect the trailer's existing wiring and to install the 7-way plug. Just match up the wires...
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