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  1. Custom Fit Vehicle Wiring
  2. Tekonsha
  3. Custom Fit
  4. Trailer Hitch Wiring
  5. 7 Round - Blade
  6. No Converter
Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Item # 118242
Our Price: $77.67
Custom Fit Vehicle Wiring

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Tekonsha 7 Round - Blade Custom Fit Vehicle Wiring - 118242
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  • Reviews (280)
  • Q & A (0)
  • Videos (2)
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Tekonsha Custom Fit Vehicle Wiring - 118242

  • Custom Fit
  • Trailer Hitch Wiring
  • 7 Round - Blade
  • No Converter
  • Tekonsha


  • Exact Replacement for Damaged OEM Wiring Harness
  • Installs in Seconds on Vehicles not Factory Pre-Wired
  • Upgrades Vehicles From 4-Flat OEM Wiring to 7-Way Connectors
  • Connects Directly to Standard OEM Connector
  • Fits mounting bracket PK-12711U (sold separately)
  • Fuses and Relays Included
  • Can only be used with a factory 4-pole harness
    • This will not work with a factory 7-pole harness


Product detail

Picture of OEM Connector. The plug is usually located on the driver's side between the back tires and the end of the truck bed.


Product detail

Picture of the 7-Way Connector



118242 Ford Replacement OEM Tow Package Wiring Harness, 7-Way

Installation Details 118242 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Video of Ford Replacement OEM Tow Package Wiring Harness, 7-Way

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




Video Transcript for Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118242 Review

Today we're going to be taking a look at the Ford Replacement OEM Tow Package Wiring Harness with a seven way connector. This product fits numerous vehicles, so to make sure it works with your particular year and model, you can use the vehicle fit guide located on our website at etrailer.com. This is an exact replacement for your damaged OEM wiring harness. It's going to install quickly and easily, and it upgrades vehicles from a four flat OEM wiring to a seven way connector. The existing four way flat harness on your vehicle will still be functional. The unit's designed to connect directly to the standard OEM connector, you can see right here everything that it comes with. Your going to get the actual harness, your going to get your new seven way connector, plugs into this port right here on the harness.

Your going to get a hardware kit that's going to include two zip ties, detailed instructions, and your going to get the necessary fuses and relays. The connector right here, to make sure this is easily accessible at the back of your vehicle, we recommend using a mounting bracket. This is going to fit mounting bracket PK-12711U. That item is sold separate if your wanting to add a bracket to the vehicle for your seven way connector. You can find it here at etrailer.com. Now when it comes to installing the unit, you'll need to disconnect the vehicles negative battery cable, install the included fuses and relays according to the detailed instructions, locate the vehicles wiring plug that's going to be located in the rear underneath the vehicle, inside the driver's side frame rail.

Separate the plugs on the vehicle, and then install the trailer tow harness between mating plugs. These connectors are going to match up perfectly, they're going to snap lock together for a nice tight secure fit. Once you have those connected, make your ground connection, that's going to be you white wire with the inaudible 00:01:37 attached to it. That's going to get connected by using the existing ground stud on your frame rail, and then plug the seven way socket into the harness on this side. Push it in until it snaps together. It's got the locking tabs on it as well for a secure fit.

Once you have that done, you can reconnect the battery cables, test your installation, you can secure all your loose wires with the included zip ties or cable ties. Then you can mount the tow harness in an accessible location using the mounting bracket like I mentioned earlier. Please keep in mind, the unit can only be used with a factory four pole harness. This will not work with the factory seven pole harness. The instructions are detailed, they include some images in there to help with the installation process. A couple more things that I want to mention before we wrap up the video, here on the seven way connector, you can see it has a nice spring loaded lid, has a little tab right there so you can easily get that open, and get everything connected as you need to.

Really nice design. I just want you to know that your wiring is going to be protected. It's got the nice wire loom that goes around there to protect the wires. Again, when installing this, I do recommend going ahead and using the zip ties, to secure the wires up and out of the way, and keeping them safe. Especially during travel, and when a lot of grim builds up under the vehicle, having them tucked up and out of the way. Maybe even along the existing wiring harness is really going to help extend the life of this wiring harness, and just the wires. That wiring loom is going to help as well. That's going to do it for today's look at the Ford Replacement OEM Tow Package Wiring Harness with a seven way connector.

Customer Satisfaction Score:


Customer Reviews

Ford Replacement OEM Tow Package Wiring Harness, 7-Way - 118242

Average Customer Rating:  4.8 out of 5 stars   (280 Customer Reviews)


by:

Easy to install, and worked great until I backed into a concrete light pole support. I needed a new socket end where the trailer plugs in, as original was smashed up and spring cover wouldn't close right. etrailers on-line chat was worthless to try and find a direct fit w/o having to buy a whole new kit. I researched it myself and took a chance and ordered two (2) of etrailers Pollak Replacement 7-pole, RV-Style, Trailer Connector Socket-Vehicle End-PK11893 (Pollak PA66-GF30). This is a perfect replacement for the original that came with this 118242 harness kit. Bought 2 to have spare for next back-up incident.....

Johninky

8/3/2023

No change to original review, AND I DID NOT smash up another socket yet, so still got my spare.....2001 F-150



by:
2000 Ford F-150

Excellent product. High quality and easy installation. Made better than a factory harness I have on a different vehicle. I also purchased the mounting bracket and hardware kit. The bracket is wonderful and most of the hardware was good too. The self tapping screws both got the heads broke off, but it was my fault, not the screws.

Austin J.

6/18/2014

Still working flawlessly, the factory 4 flat isnt working but this one still works like it did when brand new. Highly recommended.



by:
Ford F-250 Super Duty

I installed the wiring on my Ford F250. I've had the wiring for about a year with zero problems. The wiring package had everything I needed for a complete installation. It was easy to install. We've towed our RV over 6,000 miles since the installation. The harness has held up just fine in all types of weather and climates. Also, hats off to Kennika for her exceptional customer service.



by:

Your product fits perfectly I customize the 7 way plug into my bumper I didn't like the way the bracket let hang down so far ill send another picture with me pulling my drag truck with the van thanks again.



by:
1997 Ford F-150 and F-250 Light Duty

The tow package I purchased last year, fits great and installed perfectly. It works perfectly with my electronic under-dash brake controller.

The kit came with everything that I needed and instructions were easy to read I had the entire kit installed in about 40 minutes it's work Flawless for me for over a year and I tow a variety of trailers the plug is never failed due to workmanship it is still water tight.

The receiver cap spring still has excellent tension to help hold the plug into place, the only gripe I have is that I should have installed stainless mounting screwswhen I installed the kit because the mounting starting are starting to rust a little, but that's my oversight and is nothing to do with the kit and its ability to provide flawless service.

I highly recommend this product if you're like me and was looking for an oem Plug and Play setup!

5 stars!



by:

My truck already had 7 pin harness but had a ground issue. Replaced it with this one and it works great now. Plugged right in but had to leave old harness in to get taillights to work. Way less expensive than buying OE harness from Ford
Thanks etrailer

Kirk C.

9/24/2018

One year and many trailer miles later, plug is still working perfect. Thanks



by:
2017 Ford F-150

this adapter is not the only item i bought, i ended buying multiple plug adapters in hopes of finding one that worked, well to make a long story short i ended up taking my motorhome with all the plugs that i had bought to giant r.v. and sales that said please fix it. the bill came to 679.01 so instead of being a plug and play it turn out to be plug and pay. but on the bright side i have extra plug that i will never use.

Etrailer Expert

Rachael H.

3/29/2018

Thanks for the follow up Charles, This 7-way is intended to be a 7-way replacement for the trailer connector on older model Ford F-150s but is is not a fit for either your 2017 F-150 or intended to be used as a flat tow wiring harness for flat towing your F-150 behind your motorhome. I have included a link to the trailer connectors confirmed as a fit for your and a link for the vehicle tow bar wiring for flat towing your F-150 behind your motorhome.



by:

Super quick mailing and exactly what I needed. Wiring is holding up fine after a years usage.



by:

Product does EXACTLY what its supposed to. Do no purchase an aftermarket product as they do not work (already tried) - but this product worked like a charm and continues to work. Good product worth the money.



by:
2003 Ford F-150

The turn around on this order was awesome. I haven't instaiied it yet but it looks simple. I was a little disappointed that there was no mounting bracket with this, but no fear I'm going to bore a hole it the bumper and with some self tapping screws we will be up and running in no time. I'll post some pictures of the completed job. Thanks for your excellent service

Gary M.

9/22/2017

Still loving it works great



by:
2002 Ford F-150

The harness I purchased for my 2002 Ford F-150 was fine with no problems installing it. However, it did not solve the problem I had (no right stop/turn signal and no running lights). I suspect the problem lies elsewhere and is no fault of the new harness.

Etrailer Expert

Laura E.

2/6/2017

Thanks for your review and your purchase, Dave! Often, the culprit is a kinked wire on the trailer or a bad ground. To assist you in troubleshooting your trailer wiring, I have included a link to our help article.

Dave I.

2/5/2018

I was unable to find the problem I was having and ended up removing the harness and just tapping into the trucks lighting system with a smaller, basic harness I already had. But Ill give you an A plus for customer purchase follow up - very nice to see nowadays!



by:
2001 Ford F-150

The product works as described. The only problem I encountered was on a 2001 F150 crewcab. The connector that connected to the wire harness coming from the front of the vehicle did not have any catch mechanism so it wouldn't stay together enough for the right side lights(on truck and trailer) to work. I used some channel locks and pushed together as far as I could without breaking anything then used electrical tape to tape it together. Of course after I crawled out form under truck and put spare back in place I realized I should have used a zip tie to hold it. Would probably last longer and hold better. Everything works well. I do not have a brake controller hooked up on vehicle yet.



by:
2003 Ford F-150

I have a 2003 F-150 and wiring parts I needed were a perfect fit. The videos were very helpful and informative. Now i know that there are relays and fuses that control trailer lights even through the truck lights are working fine.



by:
2003 Ford F-150

My F150 had an OEM 4 pin trailer plug and hitch.
The 118242 - 7 pin connector with wiring harness is the ticket. The hardest part of the install was dropping the spare tire. The plugs connect directly to the factory plugs and the harness length is the correct length.
The 3035-P brake controller connector harness was just as easy. Plugs right in to the OEM plug next to the ECM connector and the other end into the brake controller.
The PK12711U-26 - 7 pin bracket and hardware kit fastens directly the OEM bracket that is on the hitch. My truck had an OEM 4 pin trailer towing set up with the hitch. The OEM hitch had the bracket welded on it to attach the 7 pin mounting bracket to it.
These kits make this install very easy and professional looking.
If I have one complaint, the hardware kit to attach the 7 pin connector bracket is set up to fasten the bracket directly to the bumper with 2 - self tapping screws provided in the kit. The kit also includes 4 #12 machine screws with toothed washer nuts to attached the 7 pin connector to the bracket. This is fine if your truck hitch doesn't have an attaching bracket welded to it. The kit should included in it 6 #12 machine screws and nuts along with the 2 self tapping screws. Since my OEM hitch actually had a bracket welded to it to attach the 7 pin bracket to it, I had to use two other #12 screws and nuts to attach the 7 pin bracket to the OEM bracket on the hitch. Not a big deal, just a thought.
It took me about 2 hours, start to finish to install the 7 pin connector, trailer controller, and add the two relays in the OEM relay/fuse box under the hood.
I highly recommend these kits.



by:
2001 Ford F-150

nice plug and play installation, video on your web site helped to speed the process as well as clarified that this was the right part that I needed, very good quality although the maxi fuses were not correct for my application but mine already had the fuses in place.

Duane G.

6/9/2015

The product is doing fine.



by:

Delivery was fast
Got my order in just
a couple days.
Products did exactly as they were decribed. Very happy with products and customer service. Looking for something else to buy from etrailer.

Clay D.

6/29/2018

All the products are holding up well and working great. If you want check with me next year.



by:
2001 Ford F-150

We purchased a 5th trailer and needed to have my Ford F-150 wired for trailer brakes and 7 pin harness. Checked your website and was able to find all parts I needed. The installaton videos you have are awesome, they help out so much. Ordered all parts and they arrived quickly. All parts were identical to what was ordered. Had everything installed and wired in, in about 45 minutes. They wiring harness was perfect fit and they trailer brake control harness also exact fit. My overall experience was awesome from placing the order and the e-mails to let me know who took my order and who sent it and tracking it. I will recomond etrailer to everyone I can. Thanks to etrailer we are ready to tow our trailer.******



by:
2015 Ford F-150

7 Pin wiring harness for my '02 Ford F-150 was a 15 minute job, easy to install without removing the spare, and worked immediately. Thanks!

Stan

5/11/2019

It works great. I’ve used it quite a bit during the year. Thanks



by:
2004 Ford F-150 Heritage Series

Easiest trailer plug I have ever installed...lowered spare tire (but did not remove) and then unplugged the stock wire plugged this in line and mounted it all to the brackets i purchased here at same time, had it all wrapped up and completed in under half hour, with my 4 year old daughters help of course!



by:
2003 Ford F-150

Installation of the actual harness was easy. However, if you have the factory 4-pin flat connector without the 7-blade connector, you will need to purchase or make a bracket for the 7-blade connector. On an F-150 there is very little space to add an additional bracket, so I extended the 4-pin bracket and made the extension so that it held both the 4-pin and 7-blade connectors. There is a bracket, a Ford part, specifically marketed for the Harley Davidson edition, FY3Z-14A163-CA, which may or may not fit the standard F-150. Also, another part, FL3Z-14A163-BA may or may not fit.



by:
2000 Ford F-150

If you did not see my review for the bracket then I will recap. I did not use the bracket except for a template. Mounted the plug in the factory bumper just left of the license plate recess by knocking it out with an electrical knockout cutter. Drilled the mounting holes and installed the wiring harness. Great product and great video, I highly recommend etrailer.com. Package properly, came early, fit was perfect.



by:
Ford F-150

This kit was exactly what I needed for my '03 F150 to pull my trailer. It was simple to install and nothing additional was needed in my case. The connectors are usually already there if you have the tow package and a 4-pin. Just remove the spare and the connectors are there and it was simple as pie from there. etrailer is the best place for all your needs and I would highly recommend them to anyone needing parts or supplies for their towing needs. Great products, great company!



by:

Simple install! Took longer to get the spare tire off then the installation of the harness did. Make sure to purchase the mounting bracket (sold separately). I also bought the no drill mounting bracket, but chose to use self tapping screws and went straight into the bumper. Makes it easier to hook up, and it's solid. Your choice if you want to save $9. Great product, fast shipping.



by:
1998 Ford F-150 and F-250 Light Duty

I needed a 7 pin wiring system and a friend told me about etrailer.com. I looked at all the options listed for brake controllers and didn't know which to choose from, I called tech support and explained what I wanted and they reccomends a controller for me. I also wanted plug and play, no cutting/skinning/splicing wires for me, I wanted it simple. Well I got simple, very easy install and everything works perfect. Very satisfied and I will be buying more products in the near future.



by:
2001 Ford F-150

I ordered the prodigy 2 controller, the wiring harness, hardware kit and mounting bracket. quick shipping and instalation was super easy with the how to video. I installed the whole kit in under an hour and towed 1650mi right off. Just as described and the kit worked flawless! literally plug and play. I can't say enough good about it.


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See what our Experts say about this Tekonsha Custom Fit Vehicle Wiring

  • Could Tekonsha 7-Way Harness 118242 Fit 2000 Ford Expedition if Connectors Match
    Sounds like your 2000 Ford Expedition is wired for the 7-Way kit part # 118242 to fit. If the two connectors you found match what you see in the attached picture the # 118242 will fit and work well.
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  • What Circuit Would Prevent Trailer Wiring Exterior Lighting From Functioning
    It's very possible that you have a blown fuse in your 2006 Ford F-350 that is causing your trailer exterior lights to stop working, but what's also very likely is that the 12 volt accessory circuit pins of your trailer wiring have corrosion which needs to be sanded off and the circuit will function again so I would check that first. The pin in the 1:00 position of your 7-way is the correct one for this circuit. If that checks out check under the hood for 12 volt trailer power circuit...
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  • Is There Version of # 118242 That Doesn't Have 7-Way
    We do not sell a version of the Ford Replacement OEM 7-Way Wiring Kit part # 118242 without the 7-way connector so you'd need to order this part number and then you'd have a spare 7-way basically.
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  • 7-Way Recommendation for 2003 Ford F-150 with 4-Way
    All you need to install a 7-way on your 2003 Ford F-150 that currently as a factory 4-way is the Tekonsha 7-way Kit part # 118242. This comes with everything you'll need to complete the install. I attached an install video for this kit for you to check out as well.
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  • Does 7-Way part # 118242 Allow Factory 4-Way to Be Kept on 2000 Ford F-150
    When you install the 7-way part # 118242 on your 2000 Ford F-150 you will still be able to retain your current 4-way. The 7-way tees into the 4-way harness so that you can keep both. Check out the install video I attached for more info.
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  • Why Are Boat Trailer Taillights Not Functioning With 4-Way to 7-Way Adapter on an RV
    One of two things are happening. Either the 7-way on your RV isn't wired right and needs to be addressed or the grounds of the light assemblies on your trailer aren't sufficient. This is the most common problem that causes the issues you are describing. I would check the ground for each light assembly and the main ground strap that runs from the trailer connector to the trailer frame. Make sure they are securely attached to a clean metal surface. If that doesn't fix the problem you will...
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    Image 1 for
  • Trailer Related Fuses and Relays in 2006 Ford Expedition
    The online owner's manual for the 2006 Ford Expedition indicates that a number of fuses related to trailer functions are located in the passenger compartment fuse panel. The fuse panel is located under the right-hand side of the instrument panel; please refer to page 277 of the online manual (which I separately sent to you). The following fuse and relay positions/values relate to trailer functions: Fuse Value Function 6 15A Brake controller 10 20A ...
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  • 12 Volt Circuit on Factory 7-Way on a 2014 Ford F-150 Does Not have Power
    It is possible that the fuse and/or relay related to the 12 volt circuit on the trailer connector is missing or blown. You will need to consult the owners manual for your 2014 Ford F-150 to find the locations of all the fuses and relays related to the tow package wiring to check them. If the fuses/relays are present and working then it could be a connection problem somewhere between the trailer connector and where the 12 volt circuit originates. These can be hard to track down. Since the...
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  • Troubleshooting Trailer's Right Turn Signal that is No Longer Working
    It sounds like you have a short on the right turn/brake light circuit. This is the pin in the 3 O'clock position on the 7-way at the back of your truck, and the 9 O'clock position on the trailer. The first thing to do is to make sure these are clean of debirs and corrosion. Next check the fuse. According to an online owner's manual, your truck's "Trailer tow right turn/stop lamps" fuse is in location 36. You might check your owner's manual first just to be sure. If it's not that simple...
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  • Plug-In Adapter Needed to Install Brake Controller In 1998 Ford F-250
    If your 1998 Ford F-250 has the factory 7-pole trailer connector at the bumper, then you should have the brake controller plug under the dash. The factory brake controller plug is located under the dash, near the center console. I have attached a photo of the vehicle side of an adapter. You will want to find the plug that will match up with the end of the adapter in the photo I have attached. I suggest double checking, but it sounds like you have found the correct plug under the dash. There...
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    Image 1 for
  • Amp Rating of Fuse Included with Ford OEM Tow Package Wiring Harness
    The included fuse is a 30 amp and will provide 12 volts through the 7-way connector to a trailer. The Ford OEM Tow Package Wiring Harness # 118242 fits a number of Ford F-150 trucks from 1997 to 2004 that have a factory 4-way trailer connector.
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  • Finding Fuse and Relay Locations for Tow Package Wiring on a 2005 Ford F-150
    If you look at the owners manual for the truck and/or the legend on the power distribution box lid it will tell you the locations of the fuses/relays that are related to the tow package wiring. I found an online version of the owners manual and the fuse/relay section starts on page 224. For fuses it looks like the trailer tow parking lamp fuse is in location 10 and the relay is location R201.
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  • 7-Way 12 Volt Circuit on a 2007 Ford F-150 is Not Working
    I assume that you are talking about the 12 volt circuit on the 7-Way. The auxiliary power would be the center pin if used as such. Otherwise it is for reverse lights. But if you are talking about the regular 12 volt circuit then you might need to be looking for not only a fuse but a relay as well. The 12 volt circuit on a 2007 Ford F-150 uses fuse location 106 (trailer tow BAT charge) and relay location R05 (trailer tow BAT charge). If the fuse is missing it takes a 30 amp fuse. If the...
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  • Location of Trailer Running Light Circuit Fuse for 2005 Ford F-150
    I looked up the owners manual for your 2005 Ford F-150 and it is the same as the 2004 F-150. On page 224 the parking lights for trailer circuit is in location 10 on the diagram and the relay is R201.
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  • Where Do Relays of Ford OEM 7-Way Kit 118242 Install on Truck
    To find out where the relays install of the Ford T-One 7-Way kit part # 118242 you will want to check out the 6:00 mark of the install video I attached. It shows you where all of the fuses and relays install on your truck.
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  • Troubleshooting Trailer Running Lamp Circuit on 2015 Ford Expedition
    The trailer running lamp circuit is protected by a 25A fuse in location 28 and a relay in position 24. Check and replace as necessary, but before plugging the trailer back in, you'll need to find and repair the short in the running lamp circuit on the trailer, or you'll continue to blow fuses. Begin at the trailer connector, and trace that circuit (typically a brown wire) back from the connector to the lamps. Look for pinched wires, loose connections or cracked/worn wire insulation. Pay...
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  • Connection Point for Tow Ready Custom Fit Vehicle Wiring, # 118242 on a 2000 Ford F-150
    The Tow Ready Custom Fit Vehicle Wiring, # 118242, connects in line with the vehicle wiring usually located on the inside of the driver side frame rail between the back tires and the end of the bed. The connection point that you describe sounds very similar. This harness gets all of the wiring from that one connection point, so after it is plugged in, the 7-Way will be routed to the back of the truck. All of the functions should be coming from the forward part of that harness and all...
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  • Tow Package Fuse and Relay Locations for 12 Volt Power on a 2006 Ford F-150
    According to an owners manual I found from Ford for the 2006 F-150 the 12 power fuse for the 7-Way is located in spot 106 and requires a 30 amp cartridge fuse. There is also a Full ISO relay needed in spot R05. Your owners manual has a section on fuses and relays for more information. The fuse you should be able to get at an auto parts store but the relay is most likely a dealer item. I would first test the 7-Way trailer connector to see if it has 12 volt power on the pin in the 1:00...
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  • Trailer Lights Not Working with 2011 Ford F-350 After Trailer Light Burned Out
    Up until you said you switched relays I was thinking relay the whole time. But if using a good relay in place of a potential bad one didn't solve the problem and the fuses are all good then that could only mean there is a problem with the actual wiring somewhere between the front of the truck and the trailer connector. Trace the wiring all the way back to front and look for and repair any damage to the wiring. I assume the truck turn signals work fine but if they don't make sure the flasher...
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  • Troubleshooting Trailer Interior Lights That Won't Work While Exterior Lights Do Work
    The exterior lights on your trailer - stop, turn and tail - and the interior lights will usually be fed by different power sources. On an RV-style 7-way the stop/turn light signals are carried on the pins at the 3-o-clock and 9-o-clock positions and the tail/clearance light signals are carried on the pin at the 11-o-clock position. The +12V auxiliary power circuit on the 7-way that would normally feed a trickle charge to maintain a battery mounted on the trailer is carried on the pin at...
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    Image 1 for
  • Needing a 7-Way Connector for a 2003 Ford F-150 That Already Has a 4-Pole Flat Connector
    The Tekonsha OEM Tow Package Wiring Harness, # 118242, will allow you to connect a 7-way trailer connector to your 2003 Ford F-150. This 7-way harness will connect to a wiring plug on your vehicle. The wiring plug will be located at the rear on the driver's side of the vehicle. I have attached a picture that shows the typical location on this plug. The Tekonsha harness will plug-in to harness. You will also need to add some fuses to your Ford's fuse box under the hood so the 7-way will...
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    Image 1 for
  • Troubleshooting a Tekonsha Voyager Brake Controller, Green Light Doesn't Come On
    According to Tekonsha there are 2 reasons that the green light of the Voyager part # 118242 wouldn't illuminate when connected to a trailer. Corrosion on the trailer connectors or a bad power or ground wire to the brake controller. Since you have already checked the power and ground for the controller it sounds like the problem is on the brake output circuit of your trailer like you have already somewhat figured out. I would start at the brake assemblies and make sure they are grounded...
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  • Troubleshooting Trailer Wiring Connected that Worked for 15 Seconds then Stopped
    Sounds like you may have blown some trailer wiring fuses on your 2012 Ford F-150 if everything worked for a few seconds and then stopped. Check under the hood for all of the trailer wiring fuses and replace as necessary. Before you reconnect the trailer you will want to inspect the wiring of your trailer to see if you can find anything that would cause the box to short out like corrosion or cut/exposed wiring. Fuses don't usually go out unless there is a short on the trailer that takes it out.
    view full answer...
  • Troubleshooting Running Light Circuit on Trailer Pulled by 2001 Ford Expedition
    If you have tested and are getting voltage at the trailer connector when the brake lights and turn signals are activated, you most likely have a blown fuse. Check the fuse box under the hood. The box should have a legend on the underside of the lid that identifies the circuits, or you can check your owners manual for the proper fuse location. Keep in mind that on some Ford trucks and SUVs, the fuses for the tow package are located in a separate fuse block mounted on the firewall in the...
    view full answer...

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Alan C

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