FITS 2010 Dodge Ram Pickup
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

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

Item # 118384

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Custom Fit Vehicle Wiring
Confirmed to Fit
2010 Dodge Ram Pickup

1500 with factory 7-Way

2500 and 3500 Pickup with factory 7-Way

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118384 - 4 Flat Tekonsha Trailer Hitch Wiring
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Product Images

In Use/Installed

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  • Custom Fit
  • Trailer Hitch Wiring
  • 4 Flat
  • Tekonsha
  • No Converter
Call etrailer.com at 800-298-8924 for expert service. We are your Dodge custom fit vehicle wiring experts, and offer a lowest price guarantee. etrailer.com carries a complete line of Tekonsha products for your Dodge Ram Pickup 2010. T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part 118384 from Tekonsha can be ordered online at etrailer.com. Complete custom fit vehicle wiring installation instructions and technical support.


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  • Reviews (224)
  • Q & A (242)
  • Videos (11)
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  • Why etrailer?

2010 Dodge Ram Pickup - T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Quickly and easily install a 4-way trailer connector on your Dodge Ram Pickup. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Retains functionality of factory-installed 7-way, RV-style connector (if present)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points behind rear bumper
    • Plug in T-connector
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the rear bumper. If you have a factory-installed 7-way, blade-style connector, the T-One will plug in between the 7-way and the OEM socket.


Once installation is complete, the 4-way flat connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.



118384 Tow Ready T-1 T-Connector - 4 Wire



118384 Installation InstructionsInstallation Details 118384 Installation instructions

California residents: click here


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


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Trailer Wiring Harness Installation - 2018 Jeep Grand Cherokee

Speaker 1: Today, on this 2018 Jeep Grand Cherokee, we'll be having a look at and showing you how to install the Tekonsha 00:00:06 T1 Vehicle Wiring Harness with a Four-Pole Flat Trailer Connector, part number 118384.Here's what our wiring harness looks like installed. We have nice dust cover that'll help protect it from the elements when it's not in use. And that covers up our four pole connector, which gives us the basic lighting functions, which are required by law in order for us to safely and legally tow a trailer.We'll have our tail light and running light circuit, our left turn signal and brake light, and our right turn signal and brake light. And on each one of these circuits, we have a maximum power output of seven and a half amps, which is more than sufficient to tow a trailer with several incandescent light bulbs, or basically as many LED lights as we want, because LED lights do draw less power.What's great about this wiring harness is that it gets the job done for your basic towing needs, so you'll be safe and legal. It's a simple plug and play operation with no cutting or splicing required. It utilizes the factory tow package connector, which is already on your vehicle.Now that we've gone over some features, we'll show you how to get it installed.

To begin our install we're working at the back of our vehicle. And clipped to the facia 00:01:17, closer to our drivers' side, we'll find our factory tow package connector.We can grab this connector, pull it away from the facia 00:01:27, and inside we'll find a plug. In order to remove this plug, we'll press in on this black tab right here, and pull the plug out.We'll hang onto the plug because we will need it again. We'll take our new wiring harness, and on the female end, we'll put a little dielectric grease inside of it to help protect it from the elements.We'll take our plastic plug, slide it back over, and clip it into place. We'll take a little dielectric grease, and put it inside our factory connector, and we'll plug our harness into that.

Now we can clip our factory harness back to the facia 00:02:22.Now, for our four-pole connector we have a few different options. We can secure it around the safety chain loops on our hitch, using the dust cover. But in our case, our hitch has an attachment point for mounting wiring brackets welded to it.And you can see we attached a four-pole flat bracket to it, where it just screws in using the provided hardware. To this bracket, we can take our four-pole connector, slide it inside of that, this will secure it into place, and the dust cover will close around it giving us a nice clean look.Our excess wiring, we can just zip tie up behind our facia 00:03:14. We have it all bundled up, and we'll secure it with the zip tie.

Now that we have our wiring connected and mounted, there is one final step that most Grand Cherokee owners will have to do.The factory tow package connector is disabled in the computer from the factory. So once you have it installed, it will require a trip to the dealership in order to have the computer reprogrammed, so the connector will work properly. All dealerships can reprogram it for a minimal fee.And that completes our look at and showing you how to install the Tekonsha 00:03:54 T1 Vehicle Wiring Harness with a Four-Pole Flat Trailer Connector, part number 118384, on this 2018 Jeep Grand Cherokee.


Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118384

Average Customer Rating:  4.9 out of 5 stars   (224 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle. This T-One typically plugs directly into the back of your factory-installed 7-way connector so you can retain the 7-way and also pull a trailer that has a 4-pole flat.

- 118384
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I am very happy with the product I received. Perfect fit and working fine I highly recommend 649794



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2012 Jeep Liberty

unable to locate factory wiring to connect this harness to. sent a search party who said it was located inside of a frame member. still searching...there are NO wires showing under the vehicle and i have not started to pull apart the interior in a search as the weather is uncooperative. i do like the fact that the 4 wire in enclosed in a loom for protection. my last vehicle did not have that feature. it is thoughtful. 462005



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2011 Chevrolet Silverado

Best product you can get to eliminate all the guessing and wire cutting. 491056



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2014 Chevrolet Silverado

Bought Fire Lights for my 2010 Chevy Silverado hides the connector perfectly. Works well installed one on my uncles 2014 GMC Sierra for his fire lights even worked for him. Great products Great Service 156359



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2012 Jeep Grand Cherokee

Perfect fit on my 2012 Jeep Grand Cherokee. Hitch and wiring harness installed in 20 minutes. This is my fifth hitch and wiring harness purchased thru etrailer and have yet to be dissapointed. Both the video and written instructions were spot on, the installation of the wiring harness couldn't be easier! 34414


Comments

Just did this install on a 2011 Jeep Grand Cherokee everything is just like the video. But the only thing that worked was tail lights. No turn or brake lights. I could not find any fuse or relays bad or missing. Did I miss something?

-- comment by: Glenn H - 09/21/2012

58

Part # 118384 is designed for Grand Cherokees with a factory tow package. Without the factory tow package, not all functions will work. In order to make it function, youll need to head to your dealer and have them re-flash either the Body Control Module BCM or Power Control Module PCM to fully activate that port.The other option is to use a harness designed for Grand Cherokees that dont have factory tow packages like part # 118425.

-- Patrick B - 9/21/2012


- 118384
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2012 Jeep Liberty

Fit my Jeep perfectly. Quick install. Looks good. 424561


Comments

Hey! It works great, no problems. As I’m a little fussy about appearance, it also looks really good on my black Jeep. Thanks.

Gail S - 08/24/2018

42771

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2013 Toyota Tacoma

I ordered the wrong harness and called to find out about returning it. The gentleman I spoke with was awesome giving me the info I needed and by using your label it saved me any shipping costs plus being refunded for the harness. Truthfully I have never experienced such a great group of people than I have with etrailer. You have won me over and I thank you for being the great company you are . 573047



- 118384
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TRAILER WIRING HARNESS WENT TOGETHER REAL GOOD. IT ONLY TOOK A VERY LITTLE TIME TO INSTALL. THIS MADE INSTALLING MY LED BRAKE LIGHT KIT VERY EASY. 35167



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2016 Jeep Grand Cherokee

Purchased this hitch for my new 2016 Jeep Grand Cherokee Laredo online after being quoted a $700 installation price at my local Chrysler Dealership. After doing some online searching and reading multiple reviews I decided to give these folks a try. My husband and I watched a very detailed video explaining 3 different hitch options for my Jeep and quickly decided for the price it was worth giving it a try. From opening box to install was less than 20 minutes that included connecting trailer light kit that I purchased extra $$.$$. You can barely see it under my JEEP. I'm very pleased and can't hardly wait to use it. Thanks again etrailer.com you helped me prove my to my husband that it would work and saved me $600! 337917



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2012 GMC Sierra

On my 2012 GMC Sierra, this was the best way to retain the 7 pole factory connection and also have a 4 pole connection. This product lets me have both 4 and 7 pole connections available at the truck, all the time, without adaptors to carry around. Most of the light trailers I pull have the 4 pole connection. I don't use the factory 7 pole very often. Installation is about 2 minutes. Check out the video on this product, it's very helpful. 38140



- 118384
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Product is well made and was delivered quickly 699877



- 118384
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2018 Jeep Grand Cherokee

part was delivered very quickly. it was very easy to order part through websites without any hassles. would order from again in the future 698469



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2015 Jeep Grand Cherokee

Everything looks good in the shipping package. Package arrived the day I was told it would arrive. Very happy. Thank you. 695206



- 118384
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Easy install Works great 695017



- 118384
by:

Easy instal. Plug and play! 692467



- 118384
by:

The hitch and wiring harness fit perfectly and was easy to install. I'm very pleased with my purchase. 680239



- 118384
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Great Product, Great Price, Great Deliv ery. 676670



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2019 Ram 1500

very easy install work good for what i need 673447



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2014 Jeep Grand Cherokee

I read all the reviews, I watched the provided videos, I purchased what was recommended. Product arrived quickly and was SUPER SIMPLE to install. I am a simple guy who can only install and repair basic things. I installed this in less than 20 minutes. It probably could have been installed in five minutes but I really take my time and read everything provided before I start the process of installing something. 661830



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2011 GMC Acadia

Although I have not installed the hitch, I did check it for fit and size, and it was perfect! I was impressed with the customer service, during and after the order process. I received a a conformation about my order, and (to my suprise) a name and phone number to contact to call if there was any problem!! The order was delivered 2-3 days earlier than I expected, and was perfect. I have already told my friends about etrailer.com, and expressed my pleasure about the transaction. This is the only company I will deal with in the future. 658385



- 118384
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2018 Chevrolet Silverado 1500

Good quality and reasonable price and shipping. Installed in 20 minutes. 657610



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2016 Jeep Grand Cherokee

Quality parts and a perfect fit. 654609



- 118384
by:

The shipping was very prompt. Hitch and electrical wiring kit were of good quality. The instructions and the supporting on-line video tutorials were terrific. The installation went very smoothly with the detailed instructions. Follow up by customer service was spot on and appreciated. Excellent overall! Thanks. 650620



- 118384
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Perfect. Easy to install. 647603



- 118384
by:

great product easy install. I couldn't be happier. 640967



- 118384
by:

The wiring harness was delivered on time. However I was shocked that when I opened the package the box had the wrong harness pictured. Already making my way to repack and send it back, something prompted me to open the box and to my surprise, it was the correct wiring harness to tap into the existing factory wiring. 638610



- 118384
by:

works great no issues 634788



- 118384
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2014 Jeep Grand Cherokee

Bought a trailer hitch, and wiring harness for my 2014 Jeep Grand Cherokee. etrailer was fantastic, right on the money with the videos and it was very helpful in choosing the right hitch. Very easy to install. 633705



- 118384
by:

After a year it is stilling working gre at! 627894



- 118384
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No problems and the install was relatively easy, it could use some improvement for hooking up the reverse lights 619588



- 118384
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2018 Volkswagen Golf

Easiest connection made from my 2018 jeep to my golf trailer. I was amazed how easy and how little time it took, and ready to go! 616669



- 118384
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2018 GMC Sierra 2500

Quick to install, worked perfectly. 611499



- 118384
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Very satisfied with your products and service representatives. Thanks again. 597603



- 118384
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2018 Toyota Tundra

Great product. Easy installation. Fast shipment. Very pleased 595364



- 118384
by:

Easy installation and works as it should Used it to install a LED tailgate light bar so I didn’t have to cut into wiring 593576



- 118384
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So easy to install , even a caveman do it 582961



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2017 Jeep Grand Cherokee

Good product, ez installation 569957



- 118384
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2018 Jeep Grand Cherokee

Was a breeze to install just plug it in to existing wiring harness and a few zip ties and done 553659



- 118384
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Great product, easy to install 515323



- 118384
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2017 Jeep Grand Cherokee

Excellent product and easy to install. 511497



- 118384
by:

Everything fit like a glove took about 10 minutes to install a hitch and wiring harness 511570



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2015 Jeep Grand Cherokee

As has been my experience in the past, etrailer has always sold me a good product and fast shipping. Will continue to buy from them. Good job, keep up the good work! 507909



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2012 Chevrolet Traverse

nice easy quick install harness 500717



- 118384
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2008 GMC Canyon

Looks like it will fit. Will definitely fit the trailer lights 493601



- 118384
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2018 Jeep Grand Cherokee

Easy and looks factory thanks etrailer!! 491366



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2011 Chevrolet Traverse

Follow the instructions and it's easy. Don't over think it. Great product. Worked as advertised. 491192



- 118384
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Promised it work and it does. Came in 4 days. 480729



- 118384
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2000 Chevrolet Silverado

Looks good like pictures, looks easy to install when I get hitch installed hook this up to 477486



- 118384
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2016 Jeep Grand Cherokee

As advertised exact factory fit. Perfect length to run from factory connector to trailer. 475911



- 118384
by:

Works like it’s supposed to . Very good product !! 472621


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

Do you have a question about this Custom Fit Vehicle Wiring?


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  • The 4-Pole Trailer Adapter, # 118384, is a T-style connector. When plugged into a truck that has an existing factory trailer connector, that factory trailer connector will remain functional and you will be able to use either one. However, I advise against using more than one of the connectors at the same time. Doing so can overload the circuits and cause electrical damage. I have included a link to the installation details for this harness for you to view. The harness itself is rated...
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  • The fuse location for an electric brake controller in a 2011 Ram 1500 is position J02 and it takes a 30-amp fuse. This is shown in the manual on page 564. The part you referenced, T-One 4-Pole Vehicle Wiring Harness # 118384, is a basic wiring harness that carries only lighting signals but not brake power for a trailer. For a 7-way wiring set-up for your 2011 Ram 1500 that includes a trailer brake power circuit you can use kit # 74682. This plugs in to the factory wiring connector. If...
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  • Does the T-One Wiring Harness 118727 Require Programing on a 2018 Jeep Grand Cherokee Altitude
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  • Towing and Kayak Carrier Setup for a 2018 Jeep Grand Cherokee Laredo
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  • Correct Trailer Wiring Harness for 2012 Jeep Liberty
  • To install the # 118384, you would need to unplug your existing 7-way harness from the rear of the socket. The # 118384 would plug inline between the vehicle harness and the existing 7-way, as shown in the video I linked you to. If your Liberty does NOT have the factory tow package with the 7-way trailer connector, the connector that the # 118384 would connect to will NOT be present. In this case, you would need part # 118554. I have linked you to the installation instructions for the...
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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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  • Can Rear Fascia Panel be Replaced After Installing Curt Trailer Hitch # 13424, 2011 Chevy Traverse
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  • Is Trailer Draw-Tite Trailer Hitch Visible When Installed On 2016 GMC Canyon
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  • 7-Way and 4-Way Trailer Wiring Recommendation for a 2015 Jeep Grand Cherokee
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  • 12V Fuse Location for 2017 Ram 3500
  • I took a look at the online owner's manual for your 2017 Ram 3500. It looks like the fuse related to the 12V pin at the 7-Way should be located at the F30 position inside the power distribution center (in the engine compartment). This will be a 30 amp pink fuse. You will just want to make sure this fuse is present and in good condition. Other fuses on your Ram related to towing are as follows: F28 - Trailer Tow Backup Lights - 20 Amp Blue F29 - Trailer Tow Parking Lights - 20 Amp...
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  • Trailer Hitch Recommendation for a 2011 Jeep Liberty
  • You may not believe this but even the Class II trailer hitches for a 2011 Jeep Liberty have the face of the receiver extend beyond the rear bumper of the vehicle. Since this is the case, I would go ahead with a Class III. If you are going to have bruised shins, might as well be from a hitch with a higher capacity and more accessory options. For a Class III hitch I recommend the Draw-Tite Trailer Hitch, # 75578. I have included a link to the installation instructions. In the upper left...
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  • Trailer Wiring Harness for a 2011 Toyota Tacoma Access Cab
  • The definitive way to determine if a vehicle has a factory tow package or any other options is to have a dealer run the VIN number. Although if there is no 7-Way connector at the back of the truck, you most likely do not have a factory tow package. To install trailer wiring, you would need to use the custom fit vehicle wiring, # 118496. I have included links to the installation instructions and a video showing a typical installation. If you then wanted to add a 7-Way trailer connector,...
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  • Parts Needed To Install Prodigy Brake Controller on 2012 Toyota Tundra
  • The brake controller will not be a 7 pin or 4 pin, it is the trailer connector that is at the back of your vehicle that will be either a 7-Way connector or a 4-Flat connector. To use a brake controller like the Tekonsha Prodigy P2 Brake Controller, part # 90885, on your 2012 Toyota Tundra you will need to have a 7-Way trailer connector at the rear of your vehicle. The 7-Way is required to give you the additional leads that are needed for the electric brakes, 12 volt hot lead, and backup...
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  • Troubleshooting a 7-Way Install on a 2012 Jeep Grand Cherokee, Brakes Work but no Turn Signals
  • It sounds like you may not have the tow package on your 2012 Jeep Grand Cherokee, you should head to your dealer and have them reflash your bcm so that you have all functions of your trailer connector. If you do have a tow package the first thing you will want to do is use a circuit tester like our part # PTW2993 and test the functions of the 7-way to determine if the problem is on the vehicle or the trailer side of the setup. Check out the video I attached that shows how this is done. If...
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  • Adding 4-Pole Trailer Connector to 2009 GMC Sierra Equipped with Factory 7-Way Connector
  • There's a few different ways you can do this. For the easiest choice, you can use a simple adapter like # PK12716. Simply plug it into the 7-way then plug the 4-pole connector for the trailer into the adapter. Another option would use the # 118384 4-pole connector. This 4-pole would plug inline between the vehicle wiring harness and the twist-in # PK11916 7-way. This would provide you with an always functioning 4-pole connector, and you wouldn't need to fool with an adapter.
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  • Adding a 7-Way Trailer Connector to a 2012 Dodge Ram 2500 Big Horn With Flatbed
  • If your 2012 Dodge Ram 2500 came with a factory tow package that included a 7-Way at the back of the vehicle, you can use 5th wheel and gooseneck in-bed wiring harness, # 50-97-410. This harness plugs in line with the factory wiring harness under the truck and provides a 7-Way in the bed area. If the truck did not come with a factory tow package that included a trailer connector, you will have to hardwire one in starting with a 4-Way using # 119178KIT. A T-connector is not available....
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Info for this part was:

Expert Research:
Michael L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Brandon M
Expert Research:
Adam R
Expert Research:
Rachael H
Expert Research:
Jeffrey L
Video Edited:
Zack K
Video Edited:
Jeff D
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Dustin K
Video Edited:
Chris R
Video by:
Andrew K
Video by:
Joshua S
Video by:
Kathleen M
Video by:
Zach D
Video by:
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Installed by:
Jeff D
Test Fit:
Nicholas E
Test Fit:
Randy B
Test Fit:
Brent H
Test Fit:
Robert C
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
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