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Expert Answers about Ford Wiring


  • How to Troubleshoot Travel Trailer Running Lights Not working
  • Since your trailer is brand new I suggest a visit to the selling dealer or to another authorized service/repair center. Small parts such as light lenses are easy to replace and inexpensive, but troubleshooting the blown fuse problem is not. Finding and correcting this problem is the dealer's responsibility (if the problem is indeed on the trailer side) but if you cannot do that then I suggest you test the truck's wiring, without the trailer connected, to see if you can isolate the source...
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  • Will Curt Fifth Wheel and Gooseneck Wiring Harness for Aluminum Truck Beds Fit 2017 Ford F-250
  • Yes, I confirmed with Curt that the # C57008 fifth wheel and gooseneck wiring harness will fit the 2017 Ford F-250 and the F-350.
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  • Parts Needed to Install 7-Way Socket on 2011 Ford Ranger XLT with 4-Pole Connector
  • For your vehicle to be able to send a 12V trickle charge back to your trailer's battery you will need a 7-way type installation which includes this power feed. You do not need a converter box for the truck, just a 7-way socket # 37185 and some additional wire and a circuit breaker. Your existing 4-pole will simply plug in to this 7-way. You'll then need to make only the one 12V power connection using 10-gauge wire like # 10-1-1 and circuit breaker # PK54540. Your trailer will need to...
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  • How to Change the Old 6 Pin Rectangular Wiring Harness to a 7-Way Wiring Harness
  • I do have a solution for you, but unfortunately we do not carry an adapter that goes from the 6-Way rectangular harness to a current 7-Way harness for your trailer. You will have to do some splicing to get the result you want. What I recommend doing is using a circuit tester, like part # 3808, to find out what the function is on each wire. You can either cut the harness off that you currently have, or you can use the Connector Kit # 37995 to access the wiring. You can use Butt Connectors...
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  • Blue Wire Not Receiving Power on 7-Way Connector in 2005 Ford F-250
  • ***emailed customer (how testing blue wire - brake pedal or manual override) 3-13
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  • Bumper-Mount & Bed-Mount 7-Way Trailer Sockets for 2003 Ford F-250
  • You can use the harness portion of kit # 40167 to plug in to the OEM wiring on your 2003 Ford F-250 but change out the socket part with part # 20119 for use on your bumper. Then for the truck bed gooseneck harness you can use the 7-way # C56000 which will connect between the bumper sock and OEM wiring using round U.S. Car connectors.
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  • Adapter Availability 13 Pin European to 4-Way US Trailer Connector
  • Unfortunately we do not have an adapter to go from a European 13-way trailer connector to a U.S. style 4-way trailer connector. European trailers typically have separate brake light and turn signal circuits, but U.S. trailers use a combined wiring system that use one wire for the turn signals and brake lights. You could make an adapter using a universal 4-way flat tail light converter like part # 119130, but you would need to find a European trailer side 13-way connector that can be...
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  • Troubleshooting Brake Controller When Manual Override Does Not Work
  • It sounds like the brake controller is possibly going out and would need to be replaced. You can do some troubleshooting to make sure. I have attached a link to a helpful article that explains how to troubleshoot a brake controller you can check out. First inspect the trailer connectors on the vehicle and the trailer for any signs of corrosion or rust and clean as needed . Make sure there are no damaged wires for the connector and the trailer wiring is good as well. Then, you will...
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  • Troubleshooting Having No 12 Volt Power At 7-Way Trailer Connection On 1995 Ford F-350
  • Yes. Check Fuse # 90 in your fuse block. It is a 25 Amp cartridge fuse for trailer tow battery charge located in the engine compartment. You can find the location in your owners manual if you need further location help. I've also attached a help article on wiring to help with further troubleshooting if needed. If the fuse isn't blown, you will need to use a circuit tester like # 3808 to check for a short in the wire and replace the wire as needed with # 10-1-1 sold by the foot.
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  • Trailer LED Light Load Resistors for Wiring Harness in 2014 Ford Escape
  • If the factory trailer wiring harness in your 2014 Ford Escape does not function correctly with the LED lights on your trailer you can correct this issue by installing load resistors at each of the trailer lights. You do not need to replace the factory harness unless it has damage. Usually factory converter harnesses will be installed under dash. High-efficiency LED lights can have this issue because they draw so little power. That can cause the converter to not sense them correctly. The...
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  • Recommended 6-Pole To 7-Way Trailer Connector For 1999 Ford F-250 Super Duty
  • If you have a 6-pole connector on your 1999 F-250 I recommend using the Hopkins 6-Pole to 7-Pole Trailer Wiring Adapter, part # 47435. You simply plug this into your 6-pole when you want to tow the gooseneck and you have a 7-way connector to use. The 7th pin is likely a reverse light circuit that likely is not used so you should be good to go. If you have a 7-way on your truck and need a 6-pole to tow a trailer then you can use part # HM47570.
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  • How to Replace 9-Pin on Vehicle with 7-Way
  • 9 pin connectors aren't normally used on light duty vehicles so yours is most likely not wired to any standard. What you will have to do is test all of the wires ran to it by function with a circuit tester like part # 3808 so that you can determine all of their functions and then wire according to the chart I attached.
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  • Ford OEM Connector With Bare Trailer Wiring For 2001 F-350 Dually For Custom Install
  • For your 2001 Ford F-350 Dually, we don't have a bare wire kit with the gray OEM harness. I recommend using the 7-way # 20031 that is confirmed to fit and cutting the CAR adapter off the other end. This will give you the relays and fuses you need to make those wires function correctly as well. For a shorter length you can use # 118243. If you just need a 7 way connector, you can use # PK12-707E and connect the wires. If you need a wiring extension you can use # PK11-934. If you...
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  • Recommended 7-Pole And 4-Way Adapter for 2000 Ford F-350
  • The trailer connector I recommend is part # 37185. This connector can be installed with your existing 4-way connector, or you can remove the 4-way connector and hardwire the adapter that will give you a working 7-way and 4-way trailer connector. I have attached a link to a helpful article about trailer wiring you can check out.
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  • Does Wesbar Adapter WG54006-046 Use Standard Wire Colors for Trailer Wiring
  • The # WG54006-046 that you referenced does follow the color code chart that you attached a picture of.
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  • 7-Way Adapter Recommendation for Adding 7-Way to the Bed of a Truck
  • Yes, what you need is a fifth wheel/gooseneck 7-way setup like the # 41157. This kit installs in line with the 7-way at the rear of your truck and gives you a second one to install in the bed.
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  • Troubleshooting Brake Controller in 2008 Ford F-250 Gas Pickup
  • There are many reasons why a trailer brake controller could fail to operate. Since I do not know anything about your controller or its installation I can give you some general guidance. If the controller does not light up (if it appears not to have power) then start by testing the black wire that delivers 12V power to the unit. Use a circuit tester like # 40376 or # 3808. If you do not get a signal on the black wire then check your fuse/circuit breaker. You should have 12V power on that...
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  • What Type of Steel is Used in the Metal Loom Clamp A0500
  • The wire loom part # A0500 is a zinc-coated steel. The zinc coating fights rust to prevent corrosion.
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  • Adding a 5-Way Trailer Connector to a 2008 Ford Super Duty and Trailer for Reverse Lights
  • If your 2008 Ford Super Duty came with the factory installed 7-Way trailer connector then all you would need for it is a 7- to 5-Way adapter # A75TB. If your truck came with the factory 4-Way then you would need adapter # 20036 and the blue wire will splice into a reverse light wire on the truck. Then for the trailer you can install a 5-Way wiring harness # HM47910. The existing light wires can splice to this harness but for reverse lights you would need to add wire, # 16-1-1 sold by...
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  • How to Tow a Trailer that has a 5-Way Trailer Connector with 1984 Ford F-250 that has a 4-Way
  • Since your 1984 Ford F-250 already has as 4-way flat trailer connector all you need for the connector is an adapter # 47515. Your existing 4-way will plug into the adapter and the additional blue wire will need to be tapped into the truck's reverse light circuit using the included quick splice wire connector. I've linked a video of the adapter being installed onto a Nissan Murano. The vehicle is completely different but the process is still the same.
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  • How to Prevent a 12 Volt Power Circuit on a 7-Way from Being Active All the Time
  • What most people use to allow the 12 volt charge wire from being hot all the time and only when the key or the vehicle is on is an isolation solenoid part # TR118665 on the charge wire. You basically run the center pin to a keyed power source and then run one side of the solenoid to the 7-way and the other to the wiring of the truck. If you were wanting to install it on a 4-pole connector that was used strictly for that circuit that is possible too. This wouldn't work through a 7-way...
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  • 12 Volt and Reverse Light Circuits Not Working on 1999 Ford F-250 Tow Package
  • There are also relays associated with the reverse light and 12 volt circuits for the tow package wiring on a 1999 Ford F-250. There are also multiple fuses for each. If any one of them is bad or missing then that circuit will not work. The relays are in locations 38 and 39 in the fuse panel so those are the first to check. There are also a fuses in locations 4 and 16 in the under hood panel and in location 28 in the in-cab fuse panel.
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  • Replacement 7-Pole Trailer Connector For 2002 Ford Excursion
  • The Replacement 7-Pole trailer connector that will work with your Excursion is part # PK11893. This is the vehicle-end RV-style connector and is an exact replacement for the OEM.
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  • Adapting a 7-Way Round Pin Connector on a 1992 Ford F-150 to 7-Way Blade Style Connector
  • To adapt a 7-Way round pin vehicle side connector to a 7-Way blade style connector use adapter # PK12-724. The adapter will route the functions to the proper pins on the output side so you would not have to move any wires around.
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  • Solution for No Power to the 12v blade on 7-way Connector on 1999 Ford F250 Super Duty Truck
  • Easiest method will be to bypass the factory wiring and go with 10 gauge wire like part # 10-1-1 with the breaker # 9510 to the vehicle's positive terminal. Since this bypasses everything it would not interfere with vehicle wiring at all.
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  • Trouble Connecting the 4-Flat Trailer Wiring to the 4-Flat on My 2008 Ford F-250
  • After viewing the photos that you sent me, I have a solution to your problem. It looks like the weather shielding around the 4-flat on the trailer was manufactured different then the standard 4-flat. I recommend cutting the old plug on the trailer of and wiring in Curt Wiring Harness with 4-Pole Flat Trailer Connector, # C58044. The Curt end is designed to fit the plug that is on your Ford. You could also try to trim back the weather shielding on the trailers plug to fit the one on your...
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  • Second 4-Way Wiring Harness For 2016 Ford F-150
  • To add a second 4 way to your factory system, you only need to add a adapter from your 7 way since you already have a separate 4 way. I recommend using the Adapter 7 Pole to 4 Pole with Tester and Cover, # 47345. I reached out to my contact at Cequent and the T-One # 118384 should fit without issue if you want the second 4 way in line. The only reason why the male end may not connect properly is if there is a bent pin on the male side or something stuck in the female side of that...
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  • Recommended Wiring And Adapters For 2012 Ford F-250 Bumper Connectors
  • If your 2012 Ford F-250 doesn't have any wiring for trailers, we will need to start with the 2012 Ford F-250 and F-350 Super Duty 4-Pole Hardwire Kit with Circuit Tester, # 18252. This will be a hardwiring kit to give you a 4-pole flat connector. To upgrade that 4 way, I recommend the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires, # ETBC7. This kit will utilize the 4-way flat and will connect it to a 7-way and 4-way connector....
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  • Parts Needed to Install 7-Way on 2016 Ford F-150 with 4-Way
  • For your 2016 Ford F-150 if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 37185 and the install harness part # 22292. If you check out the install video I attached you will see how the connections would be made. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well...
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  • Trailer Running Light Pin on 2013 Ford F-150 Trailer Connector has No Power
  • It could be a tow package fuse or relay that is causing the trailer running light circuit to fail on your 2013 Ford F-150. In the power distribution box the fuse that feeds the trailer park lamp relay is in position 6. Also check position 67. I am almost certain that it is a fuse/relay that needs to be replaced but if not then like you said this is an issue somewhere in the wiring that will need to be tracked down.
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  • How to Troubleshoot the Voltage From a Brake Controller on a 2005 Ford F-250 and F-350 Super Duty
  • If you have the controller set to max gain then you should be getting 12 volts. Instead of a voltage tester I strongly recommend using a circuit tester with an incandescent bulb like part # 40376. The bulb will basically trick your brake controller into thinking that there is a trailer connected to it by placing a load on the circuit where a voltage meter does not. Some brake controllers will not send back full voltage if they don't sense a trailer is connected. If you are using...
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  • 7-Way Recommendation for 2016 Ford F-150
  • That's interesting that Ford installed a brake controller in your 2016 Ford F-150 but did not give you a 7-way to go with it as well. What you would need is the part # C56307. This will plug in line with the 4-way harness you have at the rear of your vehicle and will give you a fully functional 7-way.
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  • Recommended Wiring To Add Trailer Harness And Brake Controller To 2016 Ford E-450 Cutaway
  • We do not offer any wiring harnesses that are designed for your 2016 E-450. I am afraid any trailer wiring you want to do is going to be a hardwire effort. We do offer universal wiring harnesses that will work for you but you will need to identify the wires for each of the functions by using a circuit tester like part # 3808. You will need to first install a 4-way harness like part # HM48030. You will also need a 7-way connector for the RV so I recommend part # ETBC7. This plugs...
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  • Troubleshooting Trailer Wiring that Stops Working When Headlights Are On
  • Try improving the connection of the main ground wire of the trailer wiring harness. Make sure it is attached to a clean metal surface. Or you can run all of the trailer wires back to the main ground. This is actually the ideal solution. But you can also check the current grounds for the lights to make sure they are making a solid connection to a clean metal surface. What you described is the classic insufficient ground scenario so finding a way to improve the grounds will fix the problem.
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  • Can a Non-Powered Trailer Wiring Harness be Used on a 2014 Ford Escape
  • I wouldn't say you are completely wrong. The reason that some vehicles require (or it is recommended) a powered trailer wiring harness is because modern vehicle wiring has become so then that it often times cannot handle the additional power draw from trailer lights. In other circumstances if the vehicle computer sense more draw than what its own lights draw it can cause error messages and might not allow the trailer lights to work. A powered trailer wiring harness supplies the power...
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  • Can 7-Way part # PK11720 Wire to 7-Way Harness Part # C56307
  • Yes, the # C56307 could wire to the 7-way connector part # PK11720 that you also referenced.
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  • Compatibility of Hopkins 4-Pole to 7-Pole Adapter 37185 with Wiring on 2005 Ford F-150
  • The Hopkins 4-Pole to 7-Pole Adapter # 37185 and the similar Tow Ready part # 30717 are not vehicle specific products. Either can be installed on any vehicle that has a 4-pole already in place. Between the two I recommend the Hopkins since it allows you to have both connector types in place at one time and it includes a mounting bracket. The Tow Ready gives you only the 7-way and no bracket. Please refer to the linked photo that shows you how to connect the four pigtail leads for...
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  • Ring Terminal Sizes Needed for Installing Epicord 7-Way Plug with Junction Box 277-000141
  • The terminal posts in the Epicord 7-Way Molded Trailer Plug with Junction Box # 277-000141 are indeed a 3/16-inch diameter. You can use ring terminal # 44-5310A for connecting 10- and 12-gauge wires. For the lighter 14-gauge wiring use part # DW05702-1. You'll need a crimping tool like the one included in our Deluxe Trailer Wiring Kit # HM51020. I also recommend using dielectric grease # 11755 on those connections to protect them from moisture and corrosion.
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  • Best Way To Check Brake Light Signal For An Electric Brake Controller On A 1997 Ford Explorer
  • When checking the wires associated with a brake controller, you should use a incandescent circuit tester like the Quickee Circuit Tester # 3808. This will actually cause a power draw on the wire to light the bulb and give you an accurate visual of if the system is functioning correctly. You will need a 12V power for the brake controller to work. I can confirm you are testing the correct wires and that the green wire will connect to the red wire on your brake controller. If the incandescent...
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  • Will 7-Way Trailer Connector on Trailer Side Wiring Diagram Match a 2015 F-250 Factory 7-Way?
  • The wiring diagram for the Optronics 7-Way Round RV Style Trailer Connector - Trailer Side, when installed correctly will match a factory 7-way system or an aftermarket 7-way vehicle side connector on your 2015 Ford F-250. I have attached a trailer wiring diagram help article to assist.
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  • Recommended 4-Way To 7-Way Adapter For 2008 Ford F-150 With 4-Way Trailer Connector
  • We do have a wiring adapter that will plug into the 4-way on your 2008 F-150 and give you a 7-way and a 4-way at the back of your truck. You will need part # 37185. This gives you the 4-way functions and the additional wires for the 7-way are available for brakes, power, and an auxiliary wire for 12V power, reverse lights, or even a reverse lockout for trailer brakes. The black wire is for 12V power from the positive post on the battery. The white wire is a ground and is attached to...
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  • Adding a 7-Way and Brake Controller to a 2015 Ford Expedition with Factory 4-Way
  • From what we have found the 2015 Ford Expedition that came with a factory 4-Way connector will need a little bit of hardwiring to install a brake controller and 7-Way connector. You will need # 37185, some wire (more on that later), a brake controller, and a brake controller wiring harness. The 37185 will plug into the 4-Way. Then you will ground the white wire to the frame. That will leave a blue wire, black wire, and purple wire. The purple wire is for reverse lights so if the trailer...
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  • Troubleshooting Light Bar Installation On 2015 Ford F-150
  • It sounds like your light bar has been wired incorrectly. You somehow tied the light bar wiring into the wiring that identifies a trailer. I recommend disconnecting the wiring for the light bar. Most have just two wires. One is typically white with a ring terminal and that is the ground which should be attached to a clean metal surface. The other wire should be attached to a wire that shows power only when the running lights on your truck are on. You can use a circuit tester like...
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  • Parts Needed to Convert 4-Pole Harness to 7-Way on 2012 Ford Escape
  • You can convert your Escape's 4-pole trailer wiring to a 7-way that includes a 12V power feed to help maintain your trailer-mounted battery. You will need part # 37185. This item simply plugs in to your existing 4-pole. All you'll need then do is connect the ground wire and run 10-gauge wire # 10-1-1 from the battery + post through a circuit breaker # PK54540 and back to the 7-way where it will connect to the black wire on # 37185. A wiring kit like # HM51020 includes the ring terminals...
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  • Replacement 7-Way Socket for 5th Wheel Truck Bed Wiring Set-Up
  • It sounds like you have a 5th wheel wiring harness such as Pollak # PK11893-11932 which consists of a 7-way socket along with a harness with U.S. Car Connectors on it. For a replacement 7-way with the mounting flange you can use part # PK11893. For the harness portion only we offer part # PK11932.
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  • 7-Way to 4-Way Adapter Recommendation
  • I looked up the part number you mentioned and it is basically just a 7-way to 4-way adapter for Ford 7-ways. For that all you would need is the part # PK12716 which is also made by Pollak.
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  • Troubleshooting Trailer Taillights that Stop Working When Headlights are On
  • Your main problem is an insufficient ground for the trailer wiring. Try improving the connection of the main ground wire of the trailer wiring harness. Make sure it is attached to a clean metal surface. Or you can run all of the trailer wires back to the main ground. This is actually the ideal solution. But you can also check the current grounds for the lights to make sure they are making a solid connection to a clean metal surface. What you described is the classic insufficient ground...
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  • Where to Find Brake Output Circuit of 2006 Ford F-150 with 4-Way
  • You have to look at the driver side frame rail for the wiring needed to connect to the blue wire of the # 30717 that you have. I attached a couple pictures that show what you are looking for.
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  • Availability of Self-Tapping Screws
  • We offer two sizes of self-tapping button- (or washer-) head screws. Part # FA1131822 has an unslotted hex head and is 1/4 -14 x 3/4-inch long threads. Part # 101131802 is # 8 x 1/2-inch long.
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  • Can a Trailer Battery Get Charged by a 12 Volt Accessory Circuit from a 7-Way
  • Yes, what you are interested in doing is something that is very common for people who have powered jacks on their trailer. You should note that a wire ran from the 12 volt circuit of the 7-way will only put a maintenance charge on the battery and would not charge a dead battery. But if the battery has a good charge on you will be able to keep the battery going for as long as possible between charges with this method. You would want to run 10 gauge wire from the 7-way to the battery like...
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  • How to Find Which Wires to Use to Install Trailer Wiring in a 2002 Ford Crown Victoria
  • I wish we had specific info on how to wire the part # 119179KIT to your 2002 Ford Crown Victoria but all we can recommend is to test the wiring like what you see in the install video I attached to identify the wiring functions of the taillight harness so that you can wire up the harness properly.
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  • 7-Way Wiring Harness Recommendation for Use with Pollak Heavy-Duty, 7-Pole
  • We have a jacketed 7-way wiring sold by the foot. For that you would want the part # DW04914-1. Just order the quantity of the harness in the amount of feet that you need. It would wire right up to the terminals at the back of the connector part # pk11720.
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  • Trailer lights
  • It sounds like there is either fuses or relays blown on the truck or the trailer connector on the truck side has corrosion in or on it. Checking the fuses and relays is easy. Just locate the tow package fuses/relays using the owner's manual or the legends on the fuse panel lids (many vehicles have fuse panels in the cab as well). For a relay the easiest way to check for a bad one is to use a known good one in its place. Inspect the trailer connector and make sure it is clean and free...
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  • Recommended Wiring When Adding 7-Way Trailer Connector To 2016 Ford Escape
  • First, I would recommend using part # 37185 instead of the # C57674 you mentioned because the test lamps on the connector can cause issues with the Tekonsha Prodigy RF Wireless Trailer Brake Controller, part # 90250. The best way to run the system is to connect the black wire from the # 37185 directly to the positive battery post for your 12V power on the 7-way. This prevents any issues with power draw and possibly performance problems with the lights on the trailer. I have attached...
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  • Agricultural Type 7-Way Vehicle Socket for Trailers Using Round-Pin 7-Way Plugs
  • 7-way trailer connectors can be wired in several ways and heavy-duty commercial/agricultural round-pin 7-way wiring can be different too. Please refer to the linked image to see the different vehicle-side connectors and their common wiring configurations. To use your trailers that have plugs like # PK11702 with your F-250 you will need to install a socket such as # PK11720. A circuit tester like # 3808 will help you identify the function on each wire of the truck's existing 7-way. The...
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  • How to Order Everything Minus 7-Way Adapter of # ETBC7
  • We have a kit that includes everything that comes with the # ETBC7 minus the 7-way adapter that you already have. For that all you would need is the # 5506. Since it looks like you have a 2010 Ford Escape I attached an install video for the # ETBC7 on a similar 2011 Ford Escape. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional...
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  • 7-Way Wiring Harness Recommendation for 2015 Ford F-150 with 4-Way
  • If your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 22292 and the # 37185 and a brake controller. There will be a few connections you need to make under the rear of your truck that you can see in the install video and help article I attached but the # 22292 plugs in under the dash of your truck. For a brake controller I would recommend the Prodigy P2 Brake Controller...
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  • Recommended 7-Pole Round Plug & Play Wiring Harness Adapter for 2005 Ford Super Duty Factory Wiring
  • It sounds like your 2005 Ford Super Duty was outfitted with the 7-way blade system which is the most common in the market today. To adapt your 7-way blade to a 7-pole round for your trailer, I recommend the Pollack # PK12728. This 7-pole connector is prewired to simply plug into your truck's 7-way plug. It has the # PK11720 connector you referenced but is pre-wired like you are desiring. A great mounting bracket for the # PK12728 is the # PK11771. I have linked all the above...
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  • How to Get Blue Brake Output Wire to 7-Way on a 2015 Ford F-150 with Factory 4-Way Connector
  • On a 2015 Ford F-150 that has the factory 4-Way flat connector you can either cut the blue wire back from the brake controller and run a wire from it to the blue wire on the # 37185 adapter like you said or access the wire were it terminates further back under the truck. I recommend the second method because it is less work and you can still just plug in the brake controller using harness # 22292 (for Tekonsha controllers) or the specific harness to match the brake controller you have. Both...
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  • Is the 12 Volt Hot Lead Required when Installing a 7-Way Trailer Connector
  • Trailers that use 12 volt power for accessories or that have a battery will use the 12 volt circuit in a 7-Way trailer connector. If the trailer does not have those items then you would not have to make that circuit active. That means that you would not have to run any wire or install a fuse or relay associated with the 12 volt circuit.
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  • No Power to Trailer Brakes when Connected to 2003 Ford F-350
  • The blue wire on a brake controller is output to the trailer brakes. If that wire is not connected the trailer brakes will not be getting any power. If there is a break in that wire somewhere between the controller and the trailer connector then that could be why it isn't working when the wire is connected. You could bypass it by running your own wire if you wanted to. The ABS system should be separate from the wiring for the brake controller. Usually the only time the ABS comes into...
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  • Is There Camper Shell Third Brake Wiring Available Near 7-Way of Truck
  • For a lot of trucks there is a third brake light circuit available near the trailer wiring. You would need to use a circuit tester like part # 3808 to check the voltage of both wires to see when they activate to determine what their function is.
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  • Fifth Wheel 7-Way Recommendation for the Bed of a 2012 Ford F-Super Duty
  • What you would want is the part # 41157. This plugs in line with the 7-way at the rear of your 2012 Ford F-250 and then allows you to route the additional 7-way up to the rear wheel well so that it can be mounted for easy access for the fifth wheel. I attached an install video for you to check out as well.
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  • Is Using a Brake Controller Necessary for Towing a Trailer
  • If the trailer is equipped with electric brakes and you want them to actuate, you'll need a brake controller. A brake controller is a fairly small investment that will go a long way to keep you safer when towing. There are two types of controllers, the older time-delayed variety and the newer proportional type. I'd recommend going with a proportional controller like the Tekonsha Primus, part # TK90160. A proportional controller can sense how quickly the tow vehicle is braking, and...
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  • 7-Way Wiring Harness for 2008 Ford F-150
  • The 7-way wiring harness kits offered for your 2008 Ford F-150 are shown on the linked page and all include both the wiring harness portion and the trailer connector as well, such as PK11893-11932 from Pollak and Tow Ready # 20119. Both of these use a standard round U.S. Car connector. The part you referenced, # 118247, uses two OEM connectors and is a fit for 2004 model year trucks but not for your 2008 F-150.
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  • Adding a 7-Way Trailer Connector and Brake Controller to a 2005 Ford E-150 Van with 4-Way
  • I have seen 4, 5, 6, 7, 9, 12, and 13 pin trailer connectors but never an 8 pin connector. Are you sure it is an 8 pin and not the regular blade style 7-Way such as # H20044? If it does not look like this please send me a picture of the trailer's connector so I can determine what it is. If it is indeed a regular RV style 7-Way then we do have the parts to add a mating 7-Way to your 2005 Ford E-150 van. You will need # ETBC7 to add the 7-Way, retain the 4-Way, and have the wiring needed...
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  • Trailer Wiring Harness Recommendation for a 1998 Ford Crown Victoria
  • For your 1998 Ford Crown Victoria we have the Hopkins trailer wiring harness part # 46255 as a confirmed fit that is designed to work with the taillight circuitry that your vehicle has.
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  • Converting Wiring On 1998 Ford Ranger From 4-way To 7-Way For Trailer
  • We have what you need to convert your wiring from 4-way to 7-way to match your trailer. You can cut the round connector off on the vehicle side and replace it with part # HM48035. Then you need to use part # ETBC7. Your 4-way flat will plug into the # ETBC7 and you will need to run the additional wires. You will need to attach the white wire from the # ETBC7 to a clean bare metal surface for a ground. The blue wire will go to your brake controller. The purple wire is used for reverse...
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  • Can Wire Torn from Factory Wiring Connector be Reinstalled on 2006 Ford Expedtion
  • It sounds like the blue wire on the factory connector tore off of the round connector that plugs into the back of the 7-Way trailer connector. I have a solution for you, but unfortunately we do not know of any way to install a new wire into the factory connector. The best solution I have for you is to cut off the existing round connector and install a replacement harness and connector, # PK11998. This replacement connector will need to be connected to the existing wires on your 2006...
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  • Where Does Fifth Pin of Trailer 5-Way Run to Activate Reverse Lock Out Solenoid
  • Sounds like you are trying to activate a reverse lock out solenoid on a surge brake trailer so that it can back up freely. The fifth pin that is the furthest from the jacketed ground pin is the fifth circuit to use. This circuit would need to tap into the reverse light circuit of your tow vehicle. I attached an install video for the 5-way adapter part # 47515 that shows this process on a 2014 GMC Acadia.
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  • Electric Trailer Brakes Not Working on 2002 Ford Excursion but Work w/2003 Ram with Same Controller
  • It is possible that on your 2002 Ford Excursion the output wire (blue on the controller) is not connected to the trailer connector at the back. You can test this by testing the 7-Way pin in the 5 o'clock position with a circuit tester such as # 3808 or a meter while someone sits in the vehicle and fully applies the manual override. If no power shows on that brake output pin then the likely cause is that the connection is not complete from the controller to trailer connector. This could...
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  • Adapter Recommendation to Go From 7-Way Round to 4-Way Flat
  • You have a 7-way round connector on your truck so you would instead need the part # 118709 and not the # 47345 that you referenced.
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  • Trailer Wiring Harness for a 2007 Ford F-150
  • It sounds like that 2-pin connector you found might be related to power lights or a brake light in/on a camper shell. If it is not that then I am not sure what it would be for but I can tell you that it will not be for trailer wiring. To add a 4-Way on your 2007 Ford F-150 you can use # C56031. I have included a link to a video review of this harness for you.
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  • P3 Brake Control Shows No Trailer Connected Even with Trailer Connected to 2002 Ford F-150
  • A brake controller like the P3 # 90195 senses the brake magnets on the trailer when connected to the truck. It is possible that the blue wire (brake output wire from the controller to the trailer) is broken or missing somewhere so it cannot sense the trailer. To test this adjust the controller to the highest setting. Then have someone sit in the truck cab and fully apply the manual override lever while you test the brake output pin in the 7-Way connector at the back of the truck using...
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  • Replacement 7-Way Socket Recommendation for a 2011 Ford F-250
  • The 7-way connector you have on your 2011 Ford F-250 would plug right into the Replacement 7-way part # PK11893 that you referenced. All of the circuits of the 7-way match what you see in the diagram I attached that you also referenced.
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  • Can Hopkins Multi-Tow Trailer Connector Adapter HM47675 Deliver Lights and 12V Power Simultaneously
  • The 12V power circuit on a 7-way trailer connector is separate from the lighting circuits. If you use an adapter like the Hopkins Multi-Tow Trailer Connector Adapter # HM47675 the 4-and-5-pole connector will carry the stop/turn/tail light signals for the trailer lights while the 12V power outlet will deliver a maintenance-level charge to keep a charged battery topped off. Both will operate at the same time. Do note that this 12V power feed, which comes through your F-150's trailer wiring,...
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  • Can the Pollak Trailer Connector Adapter PK12-724 Be Used Unmounted
  • If you didn't want to permanently mount the # PK12-724 you could easily leave it hanging. As long as it doesn't drag the ground when traveling you would be fine.
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  • Solution for Trailer Wiring Harness on a 2008 Ford F-150 With Dead CIRCUIT at Fuse Slots
  • If there isn't power to either side of the fuse slots on your truck when the blinker is on that is not a great sign. That would indicate a much larger problem upstream of the fuse box. To save yourself the headache, you might just bypass the factory 4-way by installing a part # 18252 which would just hardwire to your truck's wiring.
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  • Adding a Functional 7-Way with Reverse Light Circuit to a 2004 Ford F-150
  • If your 2004 Ford F-150 has a factory installed 4-Way trailer connector and you install 7-Way # 118247 and its relay (and all of the other tow package fuses/relays are in place) then you will have a fully functional 7-Way connector and the reverse light circuit will be active. This will then activate the reverse lockout solenoid that is on the boat trailer so the brakes won't engage when in reverse.
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  • Parts Needed to Install a Brake Controller in a 1999 Ford Expedition with 4-Way
  • One of the components needed to install a brake controller in your 1999 Ford Expedition is the part # 37185 that you referenced. You would also need a brake controller and install harness. For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of braking the tow vehicle is applying and applies...
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  • Connecting Wires of 37175 4-Pole to 6-Way Adapter to Install Brake Controller on 2011 Ford F150
  • The # 4 pole on the 37175 would plug directly into the existing 4 pole on your truck, leaving three remaining wires. The blue wire carries the output voltage from the brake controller, the red wire carries 12-volt auxiliary power from the vehicle to the trailer and the white wire is a ground. The red and blue wires would be lengthened and ran under the vehicle up to the engine compartment. The blue wire would run through the firewall and connect to the blue wire exiting the rear of the...
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  • Wire Gauge Sizes in Epicord 7-Way Molded Trailer Plug with Junction Box
  • The wire gauges in the Epicord 7-Way Molded Trailer Plug with Junction Box # 277-000141 are as follows: White = 10 Black = 10 Yellow = 14 Green = 14 Red = 14 Brown = 14 Blue = 12 The wire gauge in the Epicord # 277-000141 changes with different functions of the wires. Signal wires, like yellow, green, red, and brown, draw less amperage so they use a lighter gauge wire. Heavier gauge wire is used for functions like the brake signal, ground, and 12V power because they carry...
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  • Parts Needed to Install Brake Controller On 1996 Ford F150 w/ 4-Pole Trailer Conenctor
  • I'm not able to access your shopping cart, but I am able to see the various products you checked out before you submitted your question, and I'd be happy to run through everything with you. For a brake controller, the Tekonsha Prodigy P2, part # 90885 would be an excellent choice. The P2 provides safe and predictable braking in a unit that's easy to set up and easy to use. You'll need the # 3035-P brake control wiring adapter which will allow you to plug the controller in under the dash. At...
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  • Difference Between Hopkins 4 Pole to 6 Way Trailer Connector Adapter 37175 and 47175
  • There is no difference between the # 37175 and the 47175, it's the same exact part. Our part number for the Hopkins 4 pole to 6 way trailer connector adapter is # 37175, and Hopkins uses 47175 as the part number.
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  • Troubleshooting Wiring On 2014 Ford F-150 When Backup Camera Is Not Working
  • It sounds like you have a wiring issue on your truck somewhere. Since you said you are getting very little current when you test the reverse pin on your 7-way connector that would be where you want to start. Use a circuit tester like part # 3808 to check the power going into the 7-way connector on the truck side. If it still reads very little as you said then it is further upstream in the wiring. It could also be a ground that is loose. Look for signs of corrosion or a pinched or broken...
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  • Trailer Wiring Recommendation for a 2004 Ford Crown Victoria
  • The only option we have for trailer wiring for your 2004 Ford Crown Victoria is a hardwire option like part # 46255. Or if you didn't want to splice any wires into your vehicle taillights you could use the zero contact kit part # 119250KIT that uses sensors to detect the vehicle taillight wiring instead of having to splice into them. You will still need to run a power wire up to the vehicle battery though.
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  • Wiring Harness for a Superwinch LP10000 Electric Winch at the Back of a 2009 Ford F-350
  • There are some different ways that you could power your Superwinch electric winch on your 2009 Ford F-350. Tow package wiring won't have the proper rating for the winch under load so what I recommend winch wiring kit # SW2008 for up to 16.5K winches. I have linked a video showing an example installation using this wiring kit.
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  • Replacement 7-Way Trailer Connector for 2001 Ford F250
  • Since you're needing everything from the rectangular connector back, we have exactly what you're looking for. You'll need the Tow Ready # 118243. Once you unplug the existing gray plug, this connector assembly will take its place. I've also linked you to an install video. You'd then use an adapter like # PK12716 if you needed to tow a trailer that had a 4 pole trailer connector.
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  • Trailer Wiring Harness Options for a 2003 Ford Windstar SEL
  • Hopkins trailer wiring harness # HM48895 is compatible with both LED lights and regular incandescent bulbs on the vehicle or trailer so it will work with either system but it may not work with your 2003 Ford Windstar. The 2003 Ford Windstar has what is called a low-side switch for the brake circuit and not straight 12 volt power like other vehicles. There are vehicle specific trailer wiring harnesses that will fit your 2003 Ford Windstar and I have included a link to them for you. For...
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  • Parts Needed to Convert 4-Way to 7-Way on 2016 Ford Escape and Activate 12 Volt Accessory Circuit
  • You are on the right track. For a 7-way adapter to convert your 4-way signal you would only need the part # C57674. For the power wire you would need the circuit breaker part # PK54540 that you also referenced ran to the positive post of the battery with 10 gauge wire like the part # 10-1-1 which is sold by the foot.
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  • Parts Needed for 2005 Ford Ranger to Tow Trailer with Electric Brakes
  • I am happy to help you with the parts needed in order to tow your trailer with electric brakes. You are on the right track with the products that you referenced. Some vehicles allow for custom wiring adapters to install a brake controller, but there is no such wiring harness adapter for your 2005 Ford Ranger. The Ranger does not have a port available under the dash with the functions needed for the brake controller pre-ran. You will want to hardware the installation of the brake controller....
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  • Trailer Hitch and Wiring Recommendation for a 2001 Ford F-250 Stake Pocket Truck
  • If there is no trailer wiring at all at the rear of your 2001 Ford F-350 with a stake bed you are going to have to hardwire in a 4-way and then a 7-way adapter after. If there is a 4-way connector currently or you find the square connector that the part # 20031 attaches to you could go that route as well. For a hardwire 4-way you would need the part # 18252. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way....
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  • RV 7-Way to Round 7-Way Adapter Recommendation
  • The part # F77R will plug into the RV style 7-way you have installed on your 2013 Ford F-250 and then will provide you with a 7-way round socket for your trailer to attach to. I attached a review video for you to check out as well.
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  • Trailer Wiring Harness Options for a 2003 Ford Windstar
  • Hopkins tail light converter # HM48895 is a universal fit item so you can use it on your 2003 Ford Windstar. There are other, custom fit options available though. Check the build-date sticker in the door jamb of your Windstar. If it was built before November 2002 you can use # 118366. If it was built after October 2002 then you can use # 118305.
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  • 7-Way Trailer Wiring Recommendation for a 2015 Ford F-150 with 4-Way
  • I wish there was a simple plug-in option for installing a 7-way on your 2015 Ford F-150 but there isn't at this time. Now if your trailer does not have brakes all you would need is the part # 37185 as an adapter to convert the 4-way to a 7-way. If you do have trailer brakes you would need the # 37185 as well as the an install harness for the brake controller like the part # 22292. There are a few connections at the rear of your truck that you would need to make as well. The brake...
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  • Availability of 5-Way to 4-Way Adapter
  • Sounds like you may be looking for the part # 47515 as this is basically exactly what you described. I attached an install video for this for you to check out as well.
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  • Replacement 7-Way Socket for 1998 Ford F-150 Factory Trailer Connector
  • You can use Tow Ready Replacement Multi-Tow 7-Way & 4 Pole Trailer Connector # 20119 to replace the factory-installed 7-way blade style connector on your 1998 Ford F-150. This harness uses a round U.S. Car type connector to join the mating connector on your truck's driver-side frame.
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  • Recommended Parts for Re-Wiring 5-Pole Flat Boat Trailer to Match Truck 7-Way Wiring
  • Adapters like # 37385 and # HM47570 are convenient and can work fine for the short-term but for long-term reliability you are really better off replacing the connector on the trailer to a 7-way that matches your truck with no adapters - or their potential problems. Those extra connections can mean more chances for corrosion. You can easily test your truck's 7-way using a circuit tester like # 40376 or # 3808. Have a helper activate each function while you apply the tester to the appropriate...
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  • How to Disconnect Locking Tabs on OEM Wiring Harness on 2004 Ford F-350 Diesel Crew Cab
  • If the OEM wiring harness on your 2004 Ford F-350 Diesel Crew Cab uses square connectors like those on Hopkins harness # 40167 you will need to press in the release tabs in order to disconnect the existing harness. The tab is inside the small channel on the fastener. If you refer to the linked video at the 1:35 mark you will be able to see the tab engage as our technician makes the connection. If the plastic fasteners are factory original, then they may well be less flexible than when...
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  • Troubleshooting Trailer Lights Not Working, Except Taillights, with 2002 Ford F-450
  • I recommend beginning by testing your 7-Pin connector on your truck. You will want to use a circuit tester, like # 40376, to ensure the plug has all of the functions working properly. I have attached a help article on trailer wiring that will help you determine the functions of each pin on the connector. If you are not getting signal on all of the pins, you will want to check the fuses for those wires. If a fuse is bad, it will need to be replaced for the function to work properly at...
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