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

• Recommended 7-Way and 4-Way Trailer Wiring Connector Compatible with Factory Harness
  For your 2002 Ford F-250, the wiring harness you are seeking with both 7-way and 4-way connectors is the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors # C55774 or the Reese # 74682. Either of these will connect to your factory wiring harness to give you both of the trailer connectors you seek.
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• Circuit Configuration in RV-Type 7-Way Trailer Wiring
  Your photo shows the 7-way trailer wiring setup that we call the RV format. The photo I linked shows an actual trailer plug # A10-7W6 like yours and the circuit arrangement is the same as your photo diagram. For reference, the included article covers all wiring formats in detail. The item you referenced, replacement OEM wiring harness # 118242, is configured in the same way.
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• Recommended Wiring for 1998 Ford F-150 to Add 7-Way to Factory 4-Way Trailer Connection
  For your 1998 Ford F-150 Extended Cab with factory 4-way flat, you need the Tekonsha Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242. This will give you the two additional relays needed as well as the wiring harness. Then you will need a brake controller. I recommend the Tekonsha Prodigy P3 # 90195 as well as the wiring adapter # 3035-P. This will give you an easy to use proportional brake controller with easy to use presets as well as a nice LCD screen for diagnostics....
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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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• Radiator Cooling Fan Fuse/Relay Location on a 2011 Ford F-150
  There are typically two cooling fans attached to a radiator, the high speed fan and the low speed fan. I looked in the owner's manual for your 2011 Ford F-150 and its does not specify which fuse is for which fan so you will just need to check all of the ones that relate to the electric fan circuit which I have listed for you below. The fuse will be more or less apparent if blown but the relay will be more difficult to check. If you switch the suspected faulty relay out for one that you...
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• 2012 Ford F-150 with Factory Came with Fuse and Relay Labeled AL3T-15A416-AA
  Normally, a factory tow package will be fully functional from the factory when you buy the truck. But in some cases, a tow package can be added very easily (by plugging in a 7-Way and adding some relays/fuses) that they can provide the parts at the dealer. It sounds like your truck may fall under the second category. To be sure, all you have to do is use the owner's manual to find the proper locations of the fuses/relays related to the tow package, and insert the ones you found (if needed,...
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• How to Unplug a 7-Way Harness from the 7-Way on a Ford Super Duty
  Do you see the white plastic piece in the shape of a U in the picture that you sent me? You will need to pull that piece out away from the harness to release it from the rest of the 7-way. Check out the video I attached and skip to the 3:25 mark to see how it unlocks and locks.
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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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• What is Needed to Wire Mark 12 Brake Controller on 2002 Ford F-150?
  Does your 2002 Ford F-150 have a factory 4-flat, factory 7-way or no trailer connector at all?
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• Signal Lights Not Working on a 2001 Ford F-250
  I do know that the 7-Way replacement connector # 118242 that we offer for the 2001 Ford F-250 light duty models will include the necessary relays and fuses for installation, so the flasher issue could very well be that you are missing a required fuse or relay. This would be something you could check with Ford. Please note that the 118242 wiring harness is only a fit for the F-250 light duty models. If your vehicle is a Super Duty model and is equipped with a factory tow package, you...
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• Parts Needed to Install Brake Controller and 7-Way in 2000 Ford F-150 with 4-Way
  Hey Matthew, to install a brake controller and 7-way in your 2000 Ford F-150 so that you can control the brakes of your trailer what you'd need is a brake controller like the Brake EVN part # TK83BR which comes with the correct install harness and then the 7-way kit custom fit for your truck with the part # 118242 and you'd be set. What are you towing?
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• Troubleshooting Trailer Wiring on 2013 Ford Expedition
  I did not find purchase history for you to confirm which wiring kit you have installed in your 2013 Ford Expedition but if you have recently installed one of the kits intended for your vehicle (shown on the linked page) and you do not have output on the contacts for the trailer there are a few things to check. If your wiring has been on the vehicle and has suddenly stopped working then the likely causes are blown fuses, bad relays or corrosion in the connectors. First, make sure that your...
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• Parts Needed For Functioning 4-Way & 7-Way Connectors On A 2003 Ford F-150 XLT
  Hey Walt, Since you have a factory connector you can use the harness included with the Tekonsha # 118242 you were looking at and then swap out the 7-way socket with part # 30955 so that you have functioning 4-way and 7-way connectors that can be used at the same time. Since this harness is designed to tee into your factory wiring instead of replace the old wiring I would tee it in and then just zip tie up the old wiring running to the 7-way to keep your new harness's connector from...
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• Where Does a Brake Controller Plug Into on a 1999 Ford F-150
  On your 1999 Ford F-150 with factory 4-Way flat, the brake controller port is located under the dash close to the center console. It is near the OBDII diagnostic port. I have included a link to a video showing installation of a brake controller that shows this location. Your truck uses harness # 3035-P and not # 3034-P. You will also need to add a 7-Way connector. For that I recommend # 118242 which also includes the relays and fuses to make the harness functional. You might want to check...
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• Adding a 7-Way Trailer Connector to a 2017 Ford Expedition with Factory 4-Way
  In order to add a 7-Way trailer connector to your 2017 Ford Expedition you will need to use # ETBC7. There isn't a plug and play type of harness to add a 7-Way to your Expedition. I have included some links that show and explain the ETBC7 installation for you. If you are also looking for a brake controller I recommend the P2 # 90885 because it is easy to set up and use and it is reliable.
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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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• 1998 Ford F150 4 Pin To 7 Pin Connector Upgrade
  The Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242 will upgrade your factory 4-way connector to a 7-way. You will also want the mounting bracket # PK-12711U to position your 7-way connector in a convenient location and keep dirt and corrosion out. Included are both review and installation videos to help you get started.
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• Installing a Brake Controller on a 1998 Ford F-150 with Factory 4-Way Trailer Connector
  If your towing package includes a 4-Flat connector, you will first need to add a 7-Way. For your 1998 Ford F-150, you will need the Ford Replacement OEM Tow Package Wiring Harness, # 118242. Follow the wires from the 4-Flat towards the front of the vehicle until you find a connection point, usually on the driver side between the rear tires and the end of the truck bed. There will be more wires going into the connector then coming out. You will disconnect the factory connection and plug...
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• Recommended Trailer Wiring for 2006 Ford F-150
  If you are using the Ford Replacement OEM Tow Package Wiring Harness, 7-Way # 118242 on your 2006 Ford F-150, that is most likely the issue. That harness only is compatible with models up to 2004. For your 2006 F-150, you will either use the 4 way # C56031 to give you a 4-way trailer connection or # 74682 if you are replacing a 7-way connector. If you wish to upgrade from a 4-way to a 7-way, then you will want the Adapter 4-Pole to 7-Pole and 4-Pole # 37185 and after connecting the...
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• Adding 7-Way and Brake Controller on a 2001 Ford F-150 with Factory 4-Way Trailer Connector
  If your 2001 Ford F-150 has the factory 4-Way flat trailer connector then you can use harness # 118242 to add a 7-Way. Once plugged in in place of the 4-Way harness and after the included relays and fuses are installed then it will be fully functional including the orange and blue wires. You would only have to splice into them if you were hardwiring in a 7-Way. But for your truck and year you can just plug in this harness. The orange wire will be active and the blue wire will be ready...
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• How to Replace the Trailer Connector and Wiring Harness on a 2002 Ford F-150
  I have exactly what you need to replace the 4 and 7-way trailer connector and wiring harness on your 2002 Ford F-150. In order to do this you are going to want to use both the Ford Replacement OEM Tow Package Wiring Harness part # 118242 and the 7- and 4-Pole Trailer Connector Socket part # HM40975. The wiring harness is not available separately so what you will need to do is instead of using the included 7-way you would need to swap that out for the 4 and 7-way trailer connector which...
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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 # ALL640595. 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...
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• What Is Needed To Add A Brake Controller To A 2003 Ford F-150 With Factory Tow Package
  The parts you will need to add a Tekonsha brake controller to your 2003 Ford F150 with factory tow package will depend on the trailer connector you have on your vehicle. If you have a factory 7-way connector on your vehicle, you will need the brake controller and the Tekonsha Wire Replacement Harness, # 3035-P. The # 3035-P will plug into your brake controller and the other end will plug into the factory brake controller port, which will be located under the dash near the center console...
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• Where Does a Brake Controller Plug Into on a 1998 Ford F 150 and F 250 Light Duty
  Some 1998 Ford F-150 and F-250 Light Duty Trucks have a factory installed connector and some do not. This depends on if you have a factory tow package or not. To figure out if your vehicle has a tow package, you can contact your local Ford Dealer and give them your Vehicle Identification Number, and they will be able to tell you if you have a factory tow package. If you do have a factory installed brake controller wiring harness it will be near the diagnostic port on the underside of the...
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