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

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• Troubleshooting Horse Trailer Interior Lights Not Functioning
  The interior lights of your trailer would be powered by the 12 volt accessory circuit on the 7-way of your 2010 GMC Sierra. You will want to check the 1:00 position of the 7-way on your truck with a circuit tester like part # PTW2993 to verify if there is voltage on this pin. If there isn't voltage on this pin you are most likely missing the 40 amp fuse in the power distribution box and/or the circuit under the hood hasn't been completed. For more info on how to complete the circuit under...
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• 4-Pole Trailer Connector for 2021 Ford Ranger
  The Tekonsha # 118325 won't fit the 2021 Ranger. Instead, you'd need to use part # 22124 if your truck isn't equipped with the factory 7-way connector. You can then use either an adapter like # 47345 or a T-harness like part # 118384 which would install inline between the 7-way and the harness provided by the # 22124. I'd recommend the T-harness versus the adapter, as the adapters are easily misplaced.
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• 4-Pole Trailer Wiring Harness for 2014 Volkswagen Tiguan
  The TowReady T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118384 that you referenced is not a fit for the 2014 Volkswagen Tiguan. This 4-pole harness uses a standardized round U.S. Car Connector to plug in to the vehicle wiring and your Tiguan does not use this type of connector. Currently there is one confirmed fit for a 4-pole trailer wiring harness for your vehicle and it is a hard-wired type converter, part # 118675 from Tekonsha. This kit installs at the tail...
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• Trailer Hitch and Wiring Recommendation for 2002 GMC Sierra Without Factory Tow Package
  Hitches for your 2002 GMC Sierra are offered in several classes and sizes and the correct fit will depend on the exact version of the truck that you have. The link provided will take you to our main page for hitches for the 2002 Sierra; you can use the Select Vehicle Style drop-down menu to choose the version you have and see hitches that will work for you. For example, if you have a 1500 series you can use Curt hitch # 13322. An install video for this hitch is linked. Again for example,...
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• Is Under Car Trimming Required for Installation of Hitch # C13065 on a 2011 Dodge Grand Cherokee
  For installation of the Curt Trailer Hitch, # C13065, on your 2011 Jeep Grand Cherokee, you will need to trim excess caulk on vehicle frame rails, only if it interferes with hitch installation, see instructions link. I have added a photo showing where the excess caulk is likely to interfere and need to be trimmed. No part of the bumper or fascia will need to be trimmed. You may be interested in the following items to complete your trailer hitch setup. Trailer Wiring, # 118425 (without...
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• Troubleshooting Trailer Turn Signals Malfunctioning with 2007 GMC Acadia with 4-Pole Wiring
  The problem you describe, both trailer turn signals activating when either turn signal on the Acadia is engaged, is typically a grounding issue. Since you have already re-worked both the vehicle and trailer main grounds to ensure both are solidly connected to clean bare metal surfaces, then the most likely cause for the problem is either a bad wiring harness on the Acadia or some issue with your adapter. I could not find purchase history to let me see the specific wiring harness and adapter...
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• Recommended Trailer Hitch Receiver And Wiring Harness For 2019 Jeep Grand Cherokee
  For your 2019 Jeep Grand Cherokee I recommend the etrailer Trailer Hitch Receiver # e98901 which has the highest ratings for towing at a maximum tongue weight of 600lbs, and a maximum trailer weight of 6000lbs, and the matte black powder coat finish will protect the hitch from chips and scratches to keep it looking new. Since the towing capacity of your Jeep is based on which engine you have, and if you have HD or Standard cooling, I recommend checking your owner's manual , or calling your...
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• Recommended Vehicle Wiring Harness With 4-Pole Flat Trailer Connector For 2017 GMC 1500 Denali
  On your 2017 GMC 1500, I recommend using the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, # 118384, to add that 4 way connection. There will be a connection behind the bumper that will allow you to simply plug in this harness without cutting or splicing. It is a simple plug and play assembly. I've attached a video of this installation on a 2012 GMC Canyon, and your installation process on your Sierra will be the same.
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• 7-Way Trailer Connector Recommended for 2016 Chevy Traverse
  I'd be happy to help you with that. Even though you don't have the 'factory tow package', your vehicle is already prewired for a 7-way and a brake controller, if you need one. For the 7-way, you can use part # 118271 that will plug into the connector under the bumper. The kit includes the fuses and relays needed to activate the tow package. For a 4 pin connector, you can either use an adapter like # PK12716, or you can use a t-connector like # 118384 that would plug into the connection...
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• Trailer Hitch and Wiring for 2019 Jeep Grand Cherokee Altitude Towing a Boat Trailer
  The trailer hitch I highly recommend for your 2019 Jeep Grand Cherokee Altitude is the Draw-Tite # 75699 because it has a concealed crosstube so your Jeep maintains its clean look and is also strong, with a 5,000 lb towing capacity and 500 lb tongue weight capacity. Keep in mind you still want to verify what the towing capacity of your Jeep is in your owner's manual and abide by that. is a bolt-on installation that will not require drilling into your Grand Chrokee's frame to install. This...
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• Turn/Brake Trailer Lights Not Working After 4-Way Install
  Thank you for your purchase from etrailer of the # 118384 connector. There are a number of issues to check if your brake lights/turn signals on your trailer are not working, which is what I assume the results are that you were referring to. You mentioned a 4-pin tester and I'm not sure if that means a circuit tester or plug-in tester but to troubleshoot you'll need Circuit Tester # PTW2979. Then what you'll do is take a look at your owner's manual to locate any trailer fuses or relays...
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• Fuse Locations for 7-Way Connector on 2016 Ram 1500 Big Horn
  I took a look at the online version of the owner's manual for your 2016 Ram 1500. There should be a 30 amp pink fuse located in the F30 position inside the power distribution center. This fuse is specifically for the "Trailer Tow Receptacle". Make sure this fuse is present and in good condition. Additional fuse locations related to the 7-Way and trailer towing on your 2016 Ram are as follows: F11 (30 amp pink) - Integrated Trailer Brake Module F28 (20 amp blue) - Trailer Backup Lights F29...
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• 2017 Jeep Grand Cherokee Options Needed To Tow a Trailer
  On your 2017 Jeep Grand Cherokee, if you do not already have a 4-flat trailer plug installed, then you will need to install wiring harness to allow you to use the lights on the Detail K2 trailer, # K2MMT5X7. The wiring harness that I recommend is the Tekonsha 4-Pole Flat Connector, # 118384. This harness is designed to plug in to the existing wiring of your Jeep with no cutting or splicing. The harness will allow you to run the trailer lights off your vehicle's lights. Next, you will...
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• Installing Tow-Ready T-One Vehicle Wiring Harness On 2010 Jeep Liberty
  The T-One Harness, part # 118384 is designed for vehicles that either have a 7-way already installed on the rear of their vehicle or they have the US car connector tucked up behind the rear bumper. It would have a plastic cap on it. Since you said you cannot find the connector on your Liberty it makes me believe there is not one on your vehicle. The 118384 would not work if that is the case. If you do not have the connector or a 7-way on your Liberty you would need part # 118554. This...
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• Using 4-Pole Trailer Adapter Part # 118384 for Tailgate Light Bar on 2008 Silverado
  You are absolutely correct. The 4-Pole Trailer Adapter part # 118384 would plug inline to the connector for your existing 7-way trailer connector. If you need a mounting bracket for the 4-Pole, we offer part # 18144. To see the installation instructions for the Adapter, click on the link below.
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• Troubleshooting 2011 Dodge Ram No Running Lights on Trailer, Brakes and Turn Signals OK
  Under the hood of your 2011 Dodge Ram there should be a 20 amp fuse for the trailer running lights. It is a fairly common problem with your generation of truck that fuse ends up blowing. There should be a legend on the fuse box somewhere that details where all the different fuses are. Use that to find the correct fuse and replace it.
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• Installed 7-Way and 2012 Jeep Grand Cherokee Dealer Reprogrammed But No Brake Lights/Turn Signals
  If your 2012 Jeep Grand Cherokee did not come with a factory installed 7-Way then if you plug one into the wiring at the back of the Jeep the 7-Way would not function. Like you already did, you would go to the dealer and have them reprogram the computer to get the newly installed 7-Way to function. If everything was installed properly then it should work. If not then they may have made a mistake in the reprogramming process. Or, it could be that there is a fuses or fuses or even relays...
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• What Connector Does Chevy Lighted Hitch Cover part # CR-007C Attach to
  The Chevy Hitch Cover part # CR-007C that you referenced plugs into a 4-way trailer wiring connector. Most likely your 2009 Chevy Tahoe does have trailer wiring that matches this, but if not you would also need the # C59496. If you instead have a round connector (7-way) then instead you would need the part # 118384 which plugs in line with the 7-way. You could use zip ties to hide the excess wires if needed.
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• No Left or Right Trailer Stop/Turn Trailer Signals on a 2010 Chevy Silverado 2500
  If you have no trailer stop/turn signals, left or right on a 2010 Chevrolet Silverado 2500, you'll first want to start with taking a look in your owner's manuals for the correct fuse location. I went ahead and did this for you, the #1 fuse location is for the right trailer stop/turn and the #3 is for the left trailer stop/turn in the underhood fuse block. If the fuses are good the next step would be to inspect the terminals inside the trailer connector to be sure there is no corrosion....
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• How to Add Second Wiring Harness to 2018 Toyota Tundra to Power Tailgate Light Bar
  If your 2018 Tundra has wiring that uses a round U.S. Car type connector (like the item shown in the linked photo) then you can easily piggyback a second wiring harness and have both remain active. Most tailgate light bars use a 4-pole flat connector so if this is what you have all you need is part # 118384 which will simply plug in between your 7-way socket and the U.S. Car connector that connects to the back of it. Please check out the linked install video. I strongly recommend using...
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• Parts Needed To Add A Brake Controller To A 2018 Ford F-150 With A Factory 4 Flat
  Though your 2018 Ford F-150 does have a plug under the dash, not all the wires are connected and you will need extra wiring to get it working, This can be quite the pain to do, so it is actually easier to just run all new wire for the 7 Way. If you take a look at our Universal Installation Kit for Trailer Brake Controller # ETBC7, this will piggyback off your existing 4 Flat and will include all the wiring, circuit breakers, 7 Way, and bracketry needed to complete this task. This will...
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• Connecting a 3rd Brake Light on an In-Bed Camper to a 2022 Ford F-150 Lightning
  I do have an option for you that will allow you to not have to splice into your taillights, but we do not have a product that is similar to the Leer 300200 harness. The Tekonsha T-One Vehicle Wiring Harness # 118384 will connect in line of the factory 7-way already on your F-150. This gives you a 4-way flat trailer connector. To that you can attach the Wesbar 4-Pole Flat Connector w/ Jacketed Cable # W787270. This cable gives you a place to disconnect your wiring if you need to remove...
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• All Lights Work But Trailer Showing Not Connected on 2013 Ram 3500 with Factory Brake Controller
  You're likely correct that this issue is with the truck, and I know that with the first generation of the factory integrated brake controllers on the Ram trucks there were a lot of issues like this that people have seen. You also mentioned that you changed the 7 way connector on your truck, so corrosion on the connection isn't going to come in play since it's new. I would start by checking the ground wire connections on the trailer and your vehicle's 7 way connection. You'll want to make...
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• Trailer Running Lights Not Working when Using a 7-Way to 4-Way Adapter
  I assume you meant 7-Way since there are no 8-pin connectors. The 7-Way to 4-Way adapters will have the pins in the standard locations for the trailer lights but no other pins will be present. Rather than changing the pin out on the adapter it would be easier to swap wires around on the vehicle side 7-Way connector to the positions you need. The 7-Way trailer connector can be opened up and the wires switched around. If your 7-Way cannot be opened then you will have to cut and splice the...
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