Select Your Vehicle
view cartView Cart



Filter Questions and Answers:


reset filter

Expert Answers about Ford Wiring


  • Does Computer have to be Flashed After Replacing Factory Brake Controller On 2008 Ford F-350
  • The factory integrated brake controllers, especially the first generations of them, performed poorly as you have described. They are just not designed well and thus not effective. On newer trucks they have gotten better but I would still say an aftermarket controller is superior. When you install an aftermarket controller in your 2008 Ford F-350 the factory controller will have to be disconnected. This will cause a fault code to appear. That fault code will have to be cleared by your...
    view full answer...

  • Where to Find the 12 Volt Power Wire for 7-Way Wiring on a 2012 Ford Expedition
  • Actually the color wire you are looking for to power the 12 volt power circuit of the 7-way adapter part # 37185 is orange in color and will be right near where you found the blue wire for the brake controller. See the picture I attached plus the FAQ link to the right that details how to install a brake controller in an Expedition like yours. The other solution you have would be to run a 10 gauge wire like part # 10-1-1 (sold by the foot) through a 40 amp breaker like part # PK54540...
    view full answer...

  • Powering Third Brake Light on a 1985 Scamper Truck Bed Pop-Up Camper
  • The wire that attaches to the red wire on a brake controller is a dedicated brake light only wire so it could work. But I would not use it for a light and a brake controller at the same time since it is not meant to have the extra draw on it. Another option is to take a combined circuit with brake light and turn signal and use a converter such as # 118158. The output side would provide a red, brake light only wire. I have had customers tell me that you would need both the green and...
    view full answer...

  • Installing 7-Way Trailer Connector on 1999 Explorer w/ 12-Volt Power Circuit for Trailer Battery
  • To install a 7-way trailer connector on your Explorer, you'd first need a functioning 4-pole. If you don't have a 4-pole, you can install one using part # 118345. At this point, you'll need to decide if you need the 7-way to provide the lighting and battery circuits only to the trailer, or if you need to install a brake controller on the Explorer as well. If you just need the lighting and battery feed circuit, you can use an adapter like part # 37185. The adapter would plug into your...
    view full answer...

  • Troubleshooting Brake Controller On 2002 Ford F-250 Heavy Duty Truck
  • The red indicator light you have on your brake controller should start out dim and when brakes are applied or if the manual control is used, and increase in brightness as you increase the output. It sounds like your controller is working properly when the trailer is not hooked up but is acting opposite of how it is supposed to work when you hook the trailer to your vehicle. I would use a circuit tester like part # 3808, and make sure all the wiring connections are receiving current...
    view full answer...

  • Brake Controller Installation on 2006 Fleetwood Terra 32S Motorhome
  • You would almost certainly need to install a controller. Factory installed brake controllers are fairly common on full sized trucks, but not so much on motorhomes. You'd need to install a brake controller. I'd recommend the Tekonsha Prodigy P2, part # 90885. The P2 is extremely easy to use and is highly rated by our customers. The controller would install under the dash, most commonly to the right of the steering column so you don't bang your knee on it when getting in and out of...
    view full answer...

  • Will Curt Trailer Connector with Backup Alarm, # C57101, Fit 2009 Ford e-250 Van w/Factory 7-Way
  • Yes, your 2009 Ford E-250 van uses the same connector to plug into the back of the 7-Way as the F-series trucks. So you can use Curt Trailer Connector with back up alarm, # C57101. I have linked a video review for you.
    view full answer...

  • Trailer Side 4-Way Recommendation with Wishbone Wiring for the Running Light Circuit
  • Sounds like you are looking for a wishbone trailer wiring harness. One that has two wires run to the (brown) running light circuit. I have a solution for you, but the # HM48192 would not be the correct part. You would want the part # A20WB instead as it has a wishbone setup already with two wires running out of the running light circuit pin.
    view full answer...

  • Trailer Lights Not Working when Headlights are Turned On On a 2013 Ford Edge
  • There is one sure way to determine if the factory trailer wiring harness on your 2013 Ford Edge is pushing back enough power. You will need a multimeter such as # BTMT15. Have someone sit in the vehicle and go through the light functions while testing for amperage. You would also need to determine how many amps each light draws. Then with some simple math you can figure out if the trailer is drawing too much power to power the lights when the running lights are on. An easier way to...
    view full answer...

  • Troubleshooting Running Light Circuit on 7-way of 2010 Ford F350 Diesel
  • Which fuse box did you check? In addition to the box under the dash, there's also fuses located in the power distribution box under the hood. You'll want to check the fuses or relays in the following locations: 20, 21, 42 and 55. It's not always easy to determine if the fuse is blown by looking at it from the top. It's easier to tell if you can remove the fuse and give it a side view. You'll also want to rule out the connector itself as being the problem. Unplug the wiring harness from...
    view full answer...

  • 4-Way to 7-Way Adapter For a 2010 Ford Escape
  • We have exactly what you need. Check out part # 37185. This is a 4-way to 7- and 4-way adapter. You simply plug your existing 4-flat connector into the 4-flat connector on this adapter, mount the 7-way and 4-way socket and ground the white wire to the vehicle frame. The additional wires are for 12 volt power (black), electric brakes (blue), reverse lights (purple). If you do not need those functions at this time, then you can just tape those wires out of the way. On the Ford Escape,...
    view full answer...

  • Trailer Adapter to Convert 4-Pole Flat to 7-Way RV-Style Blade Connector
  • You found the correct adapter to convert your F-150's 4-pole flat trailer connector to a combination 4-pole and 7-pole to allow you to tow two types of trailers with different wiring connectors. Your existing 4-pole will simply plug in to the female connector on the Hopkins # 37185. The included mounting bracket and hardware will allow you to install this where you prefer. If you ever want to add a trailer brake controller for use with trailers that have electric brakes the extra wire...
    view full answer...

  • Options for 16 Gauge Wire to Power a 12 Volt Spot Sprayer in Bed of 2012 Ford F-150
  • We carry different types of 16 gauge wire. We have bonded 4-Wire, # 16-4B-1, jacketed 4 wire, # DW03240-1, bonded 3-Wire, # 16-3B-1, and single wire # 16-1-1. Each of these are available in increments of 1 foot. So if you needed 8 feet you would enter 8 in the quantity box for an 8 foot length of wire. I would over estimate it because it is better to have too much wire than not enough. You also might be interested in some heat shrink tubing # DW05744-10 to keep the splices water tight.
    view full answer...

  • Installing a Trailer Brake Controller on a 2006 Ford F-150 without Factory Tow Package
  • The 2006 Ford F-150 should have that port under the dash for a brake controller even if it doesn't have the factory tow package. You just have to make sure that the fuses related to it are in place. Use the truck owners manual to find the locations of any fuses and relays that may be required. Relays will need to be obtained from a Ford dealer if required and not present. If the truck has a factory 4-Way connector but not a 7-Way you will also need # 37185. I have included a link to...
    view full answer...

  • Adapting Rectangular 8-Pole Trailer Connector to a 6-Way on a 2001 Ford Escape
  • A trailer that has a 12 volt circuit will be in a certain position depending on which type of connector it has. It will not charge off of the running light circuit unless someone set it up that way. The trailer has a unique connector that is not common or used any more. We do not have an adapter that will fit but not to worry because the solution is easy. All you have to do is replace the connector on the trailer with one that matches the vehicle end. The strange thing is the picture...
    view full answer...

  • 7-Way Trailer Connector on Motor Home Does Not Have Any Power
  • In addition to fuses, some vehicles also have tow package relays. The best way to find the locations of all fuses and relays is to use the vehicle owners manual. There is normally a section on the fuses panels and power distribution boxes that lists out everything. You might also want to check to make sure that the connector is clean and free of corrosion inside and out. Once you have checked everything and made sure all the wiring is intact you can use a circuit tester such as # 3808...
    view full answer...

  • Parts Needed to Install a 7-Way Trailer Connector and Brake Controller on a 2002 Ford F-150
  • If the 4-Way connector on your 2002 Ford F-150 is a factory harness then it may say Ford on it. Otherwise if you have a dealer look up the VIN they can usually tell you how the truck was originally equipped. If it is a factory 4-Way then you would need 7-way harness # 118242. All of the 2002 Ford F-150s, whether they came with 4-Way, 7-Way, or no trailer connector at all, had that brake controller port under the dash so it is not an indication of whether or not the truck had a factory...
    view full answer...

  • After Installing Tow Bar Wiring Harness HM56000 on 2008 Ford Edge Brake Lights Do Not Work
  • You will want to unplug the 2008 Ford Edge from the motor home and use a circuit tester, such as # 3808 if you don't have one, to test the motor home side trailer connector. First test it without the adapter plugged into the 7-Way. Have someone sit in the motor home and go through the light functions while you test with the circuit tester. If the brake light signal is not coming through then there is likely a blown tow package wiring fuse or wiring issue on the motor home you will need...
    view full answer...

  • Wiring US 4-Pole Trailer Connector 2014 Ford F150 to For Trailer with European 7-way
  • I am not aware of the existence of an adapter, but one could be easily constructed. You will need to find a vehicle-side socket to receive the plug from your trailer. We do not carry them, so you will need to obtain one locally. You will also need a vehicle to vehicle taillight converter like part # 118158 and a trailer side 4-pole like part # 18004. You would then wire the converter as shown in the diagram I provided. Using this adapter will separate the turn signal back out so that...
    view full answer...

  • Installation Instructions for Wiring Harness 119179KIT on a 2014 Ford Escape
  • Trailer wiring harness # 119179KIT fits many vehicles so there are no vehicle specific instructions for each vehicle that it fits. But the process for installation is the same on all vehicles. You have to use the included circuit tester to test the vehicle wiring to make the proper connections to the harness. I have linked the installation instructions to the right for you. I have linked a video that you can use as a guide since the wire colors are not likely going to match. Another...
    view full answer...

  • 7-Way Round to 7-Way Blade Adapter Recommendation for a 1993 Ford F150 Towing Travel Trailer
  • What you have on your 1993 Ford F150 is a round 7-way, and it sounds like your travel trailer has a blade style 7-way. All you need is the correct adapter and you would be good to go. For that you would want the Pollak Trailer Connector Adapter # PK12-724. You will need to cut the red and blue wire and reattach them opposite. So the red wire to the blue wire and the blue wire to the red wire so that the wiring matches what you currently have.
    view full answer...

  • Mounting Hole Pattern of Pollak 7-way Trailer Connector # PK12707
  • I've edited a photo for you showing those dimensions. Measured horizontally, the holes are 2-1/4 inches apart, and 1-1/4 inches apart measured vertically.
    view full answer...

  • Can Power Wire from 4-Way Wiring Harness be Used for 12 Volt Circuit on 7-Way on 2010 Ford Escape
  • No need to run 2 separate power wires. You can use the 12 volt power wire from wiring harness # 118551 for it and for the 7-Way when you install it. You just need to have the 40 amp circuit breaker for the 7-Way, # PK54540, installed in the right place. Currently, the power wire goes from the battery, through the fuse holder and fuse, then back to the converter box. With the 7-Way installed have the power wire go from the battery, back to the converter, then tee off. One wire will go...
    view full answer...

  • 4-Pole Trailer Wiring Harness # C56190 Installation in 2008 Ford Escape Without Tow Package
  • There are two basic types of trailer wiring harnesses offered for the 2008 Ford Escape, the hard-wired type like Curt # C56190 that requires splicing into the vehicle's tail light wiring, and the custom-fit plug-in variety that requires only one wire to be spliced into the car's 12-volt battery for power. An example of a custom-fit harness is Tow Ready # 118551. The hard-wired type will be installed most easily if you have a circuit tester like # 40376 to help you identify the function...
    view full answer...

  • Troubleshooting Boat Trailer Taillights that Work with Chevy Trailblazer but not 2013 Ford Edge
  • It sounds like the problem is a weak ground on your boat trailer. I would check the grounds of the boat trailer and make sure they are attached to a clean metal surface of your boat trailer free of corrosion. Some vehicles are more sensitive to ground problems than others and that may be why one vehicle works while the other doesn't. I attached an FAQ on trailer wiring for you to check out.
    view full answer...

  • 7-Way Trailer Plug and Wiring for Use on Car Hauler Trailer
  • The usual 7-way plug that is installed on a trailer is actually the male plug, such as # A7WCB or # H20046 that includes 8-feet of wiring. These fit into the female socket on the tow vehicle, such as the part # HM48470 that you referenced. Sockets like the HM48470 are normally used on the tow vehicle side only. Wiring in a trailer-side plug like the Hopkins # H20046 is usually simplified by use of a junction box, which is an enclosed (protected) connection point for the wiring where...
    view full answer...

  • Wiring Installation Instructions for Hopkins LED-Compatible Tail Light Converter # HM48895
  • The trailer wiring harness you referenced, Hopkins # HM48895, is intended for vehicles that use LED tail lights which draw relatively little power as compared to standard incandescent lights. I do not believe that your 1995 Ford Explorer came equipped with LED-type lighting and this harness is not among those recommended for your vehicle. The red wire on this harness does connect to the brake light circuit as you noted in the instructions. You can identify which wire at your Explorer's...
    view full answer...

  • 5th Wheel 7-Way Recommendation for a 2011 Ford F250 Super Duty
  • You would want the Hopkins Endurance 5th Wheel/Gooseneck 90-Degree Wiring Harness with 7-Pole Plug # 41157 to install a 7-way in the bed of your 2011 Ford F250 Super Duty for your 5th wheel trailer. I attached an install video for this product for you to check out also.
    view full answer...

  • Finding the Brake Output Wire Under a 2009 Ford F-150 to Install a Brake Controller
  • If the blue wire is hot on your 2008 Ford F-150 (I am assuming under the truck, forward of the factory trailer connector) then that sounds like the 12 volt power wire. Which is strange since it is normally the orange wire like in the help article I have linked.. If they are switched then that would mean the orange wire in this case is either the brake output wire from a brake controller or it serves some other unknown function. One way to determine which wire is the correct wire for...
    view full answer...

  • Troubleshooting Trailer Right Turn and Brake Lamp
  • The first step would be to determine if the problem exists on the tow vehicle or on the trailer. Use a circuit tester like part # 40376 on the trailer connector at the rear bumper of the vehicle. Activate the right turn signal, and for a 4-pole trailer connector, test the pin that is fed by the green wire. For a 7-way trailer connector, test the pin in the 3:00 position. With the turn signal on, the tester should blink along with the turn signal. Pressing on the brake pedal should also...
    view full answer...

  • Will Deluxe Round Electrical Cable Hatch Fit a Jayco Quest Pop Up Camper
  • The Deluxe Round Electrical Cable Hatch # 65841 is not trailer specific so you have to go by the measurements. It fits in place of any round hatch that is up to 4-1/2 inches in diameter. The external diameter of the hatch is 5-1/8 inches and the internal cup diameter is 3-1/4 inches. Another option is # S-23-10-A. It takes a 3 inch diameter hole to install it and the mounting flange is 4-1/2 inches in diameter.
    view full answer...

  • Tow Bar Wiring Adapter Recommendations
  • It sounds like you have a 5-way connector on your RV like the part # PK11502 or something similar and are looking for a way to convert it to a 4-way to connect to the tow bar wiring of your towed vehicle. To see all of the tow bar wiring adapters we offer check out the link I provided. If you do not see what you need email me back and I will help you find what you need. If you could send me pics of what each of the connectors look like that would be very helpful.
    view full answer...

  • Troubleshooting Low Brake Output Brake Voltage on a 2007 NU WA HitchHiker 34 5th Wheel
  • It sounds like there is something wrong on the brake output circuit of your trailer. The reason I say that is because you have 12 volts at the connector on your 2008 Ford F350 brake controller but somehow only 3 volts are making it to the brake assemblies. Since the brake assemblies are brand new that eliminates them from being the problem. What I would do is start at the back of the connector with a voltmeter like 7-Function Digital Multimeter # BTMT15 and test the circuit for 12 volts...
    view full answer...

  • 1994 Ford Aerostar Factory Trailer Wiring Harness Does Not Power Trailer Brake Lights
  • You will want to check the stop light and/or CHMSL fuses in your 1994 Ford Aerostar. That very well could be the issue. There may also be separate fuses or possibly relays related to the tow package wiring. Use the vehicle owners manual to find the locations of any fuses/relays. If the fuses/relays are all good then it could just be a ground problem. Make sure the vehicle side and trailer side main grounds are attached to clean and corrosion free bare metal surfaces. Also make sure that...
    view full answer...

  • Can 5-Way Trailer Connector Circuit Tester be Left Plugged In While Driving
  • Yes, you can leave the tester, # 20115, plugged in while traveling. It is not going to fall out, especially when you are towing a trailer since it would be sandwiched in between the vehicle side connector and the trailer connector. But you might find that leaving it in place is not the best idea because you are essentially adding another link in the connection between the trailer and the vehicle.
    view full answer...

  • Only Right Turn Signal Works on Tow Package Wiring on a 2001 Ford Ranger
  • If the wiring harness on your 2001 Ford Ranger is a factory installed harness then there is likely fuses or even relays related to it. The best way to find them is to consult the owners manual for the truck. None of the aftermarket harnesses for the truck have fuses. It could still be a ground issue on the truck. Just make sure that the main ground from the harness is attached to a bare metal surface, no rust or paint. Move the ground if you need to. If you cannot access the truck wiring...
    view full answer...

  • Will the Curt Trailer Connector # C57101 fit the Factory Harness of a 2012 F350
  • Unless someone changed the wiring of the factory 7-way on your 2012 Ford F350 then it should be wired like the picture I attached. I think you might be referring to the release tab on the factory harness for your 7-way. Which if you check out the picture I attached you will see the back of the Curt Trailer Connector part # C57101 and you will see that the release tab attachment point is in the 1:00 position from the view of the picture, but if you were installing it in your harness it...
    view full answer...

  • Only Trailer Running Lights Work with Wiring Harness Installed on a 1994 Ford Aerostar
  • It sounds like the wiring harness # C56175 input wires are not connected to the correct tail light wires on your 1994 Ford Aerostar. You will need to make sure and test the tail light wiring for the correct functions. You would need to use a circuit tester such as # 3808 to test and verify the functions of the vehicle wiring and then splice in the trailer wiring harness accordingly. On the harness there is a white wire that should be grounded to a clean metal surface. The green wire...
    view full answer...

  • Continual 12V Power on at the Trailer Connection of a 2001 Ford F350
  • In order to have a 12V power supply at the vehicle connection point for a trailer you will need to have a fully functioning 7-way. For your truck I recommend using the Tow-Ready Custom Fit Vehicle Wiring Harness # 118243. This harness will replace your existing 4-way, and upgrades it to a 7-way connection using the factor plug. The fuses and relays are included that will be used in your power distribution box, and the trailer towing relay block. Once you have a functioning 7-way...
    view full answer...

  • Installing a 4 and 7-Way Trailer Connector on a 1999 Ford Van Cut Away RV
  • We have a help article that explains how you would go about installing a 7-Way trailer connector on a Ford full size van, or in this case an RV cutaway built on the van chassis. It very well could be different on the cut away models but there are no custom fit options made specifically for the cut away models. If the van did not come with a factory installed 7 or 4-Way connector then you will have to start by hardwiring in a 4-Way using T-connector # 118344. Then to install a 7-Way...
    view full answer...

  • Trailer Running Lights Not Working When Connected to 4-Pole Harness # 18252 on 2007 Ford F-150
  • The first step for troubleshooting your 4-pole installation is to check that the lighting functions on the vehicle itself are operating correctly. This needs to be checked first since the part you referenced, Draw-Tite 4-Pole Hardwire Kit # 18252, relies on input signals from the vehicle lights to send output signals to the trailer. If the vehicle lights are not working properly you will need to get those fixed first. Once you have confirmed the vehicle light functions are all okay you...
    view full answer...

  • Where Does the Purple Wire F\or 4- to 7-Way Adapter 37185 Install on a 2010 Ford F-150
  • If the trailer coupler has an electric reverse lockout on it then you will need a working reverse light circuit in the trailer connector. You will need to tap into a reverse light wire behind one of the reverse lights on your 2010 Ford F-150. I have linked a video that will help you. The vehicle in the video is different but you can use it as a guide. On the 4 to 7-Way adapter # 37185, the purple wire is for the reverse lights. The blue wire is for electric brake output which you will...
    view full answer...

  • 12 Volt Circuit Not Working on a 2002 Ford Expedition
  • The easiest way to check a relay is to use a known good relay in place of a potential bad one. Then if the circuit starts working again you know that was the problem. Also there could be additional fuses that are not obvious but that are associated with the tow package wiring. The best place to ensure you have found them all is the owners manual. If you cannot find any other fuses and the relays are all good then you can bypass the factory wiring. You will need about 20 feet of wire...
    view full answer...

  • What are the Wire Functions on a 7-Way Trailer Connector on a 1991 Ford Bronco
  • Its possible that the trailer connector on your 1991 Ford Bronco was added aftermarket and not all the functions were needed so one was not installed. You can check the functions of the trailer connector using a circuit tester such as # 3808 if you do not already have one. You can follow the diagram I have included here. Ignore the colors and test the pins on the connector for function. That will show you what is present and what is missing. Once we know which function is not present...
    view full answer...

  • Replacement 7-Way Trailer Socket Recommendation for a 1997 Hummer H1
  • I have an option that will work for you, however, the screw holes of the Bargman 7-way Trailer Connector, # 50-87-002, are 2-1/4 inches x 1-1/2 inches, so they would not line up with the existing screw holes on your 1997 H1. Instead, I recommend using the Pollack Replacement 7-Way Trailer Connector Socket, # PK11893, and the 4ft Pigtail Wiring Harness, # PK11998. The screw holes for the 7-way socket are 2-1/2 inches x 1-3/4 inches, which match your specification. I have attached...
    view full answer...

  • Wiring Diagram for a 7-way for Replacing a 6-Way with a 7-Way
  • To wire in a 7-way like the Pollak 7-Way part # PK12707 that you referenced you would need to follow the diagram I attached. This will tell you how the 7-way would need to be wired. You will need to determine the function of the wires on the camper once you remove the square 6-way. You can do that by applying 12-volts to the individual circuits to see what taillights function, or you could trace the wires back to see where they terminate. I also attached an FAQ article on wiring for...
    view full answer...

  • Length of the Wire on the Curt 7-Way Adapter part # C57003
  • I pulled a Curt 7-Way Adapter par # C57003 from our warehouse to measure it and found that the wire measures 9-1/2 inches from the back of the mounting surface to the end of the plug. Check out the video I attached to see this measurement.
    view full answer...

  • Installing a Brake Controller and a 7-Way Trailer Connector on a 2005 Ford F-150 With Factory 4-Way
  • Unfortunately there are no plug-in adapters or harnesses that would allow you to replace the factory 4-way flat trailer connector with a 7-way or a 7-way and 4-way connector on your 2005 Ford F-150. To complete the installation for a brake controller on your truck, you will need a 7-way adapter like part # 37185 that you referenced. It sounds like you may be familiar with the installation process, but I have included some installation details below as well as a FAQ article on how to...
    view full answer...

  • Installing a 5 Pole Trailer Connector on a Ford Explorer with Factory Trailer Wiring
  • If you only need a 5 pin trailer connector for your trailer, then the Tow Ready 4 Pole to 5 Pole Adapter, # 20036, would be the easiest option. This adapter plugs into your existing 4-way trailer connector and has an additional blue wire. The blue wire will splice into the reverse light circuit on your Explorer. The best place to find the reverse light wire is at the back of the tail light assemblies. To access the back of the tail light assemblies, you may have to loosen or remove...
    view full answer...

  • Parts Needed to Add a 7-Way Trailer Connector to a 2006 Ford Crown Victoria
  • Your 2006 Ford Crown Victoria can be fitted with a 7-Way trailer wiring harness but you will first need to install a 4-Way converter, # 119179KIT, because the vehicle has separate turn signals and brake lights. Trailers use combined turn signals and brake lights. After you have the 4-Way installed you can then add a 4 to 7-Way adapter # 37185. Or if you need to install a brake controller use # ETBC7 that comes with the adapter and the wiring and accessories needed to wire it and a brake...
    view full answer...

  • What are the Wire Designations For the Pollak 7-Pole RV-Style Trailer Connector # PK12706
  • I completely understand the confusion, however the diagram that is listed on the Pollak 7-Way RV-Style Trailer Connector # PK12706 is correct. The picture on the right side is the mirror image of the picture on the left. The raised portion at 12 oclock that orients the male plug in the female socket is on the outside housing and the notch on the bottom of the inside portion is for a raised portion at 6 oclock inside the housing.
    view full answer...

  • Where to Find the Reverse Light Wire at the Back of a 2013 Ford Escape
  • On the 2013 Ford Escape, the color wire for the reverse lights could be any color. There is no set color it is supposed to be and when on the assembly line they can use any wire color should they run out of the color they would typically use. Testing the wires to find the right one is the only way to know for sure if you have the correct wire. Use a circuit tester such as # 3808 if you do not already have one to test and find the correct wire. It looks like the reverse light wiring...
    view full answer...

  • Replacement 7-Way Replacement for a 2011 Ford F-150 Raptor
  • What you will need is the Hopkins Custom Fit Vehicle Wiring # HM40975. This is confirmed to fit your 2011 Ford F-150 Raptor, and since the connector is not available without the bracket you would just need to discard the bracket or save it as a spare.
    view full answer...

  • Trailer Right Tail Light and Brake Light Come On and Stay when Plugged Into 1995 Ford Bronco
  • If the lights are coming on as soon as you plug in the trailer without actually turning on the running lights or stepping on the vehicle brakes then there is an issue with the trailer wiring harness on the 1995 Ford Bronco. Disconnect the trailer first so you can do some testing using a circuit tester, # 3808, if you need one. First test the vehicle side connector to determine if there is power on the pins when there should not be. If there is then make sure the connector is clean and...
    view full answer...

  • Wiring Connections For Wishbone Harness To Use On Trailer Wiring
  • It sounds like you have a wishbone harness. On a typical 4-way connector, you would have a yellow wire that would be for a left turn and left brake light signal, and a green wire for the right turn and right brake light signal. You would also have a single brown wire for the running lights and a white wire for the ground. A wishbone connector will have a brown/green wire for the running lights on the right side, and a yellow/brown wire for the left side running lights. you will also...
    view full answer...

  • How to Connect a Trailer-Side 7-Way Blade Connector # A7WCB to a Trailer With 5 Wires
  • We offer a trailer-side 7-way blade connector that can be attached to the 5 wires on your trailer, part # A7WCB from Optronics. The linked video illustrates how this part installs. Since your trailer has only 5 wires some of these pins will not be used. I have attached a photo showing both sides of a trailer connector with notations for a typical wiring configuration by function and color. Although these pin assignments are typical there is no guarantee that your trailer is wired the...
    view full answer...

  • Will Adding Fuses to Power 7-Way Trailer Connector Cause 2011 Ford F-150 Battery to Corrode
  • Adding fuses to power the 7-Way trailer connector will not cause corrosion to start forming on the battery posts. What I recommend in order to stop corrosion from forming is to first make sure that the posts and the cables attached to them are completely clean of corrosion. Using a wire brush like # DW00254 will help a lot. Make sure the battery is disconnected before using any metal tools to clean the battery and cables. Then you can use any number of products available at auto parts...
    view full answer...

  • Installing 7-Way Trailer Connector and Brake Controller on a 2002 Ford Expedition with Factory 4-Way
  • The 12 volt power wire is present under the vehicle and is already fused so you would not need to hardwire in a relay or anything. Installing a brake controller and a 7-Way will be pretty easy on your 2002 Ford Expedition, even if it only came with a factory 4-Way. On models that came with the 4-Way flat the plug for a brake controller should still be there. To access the OEM plug, look near the diagnostic port on the underside of the dash. You should see an open-ended, gray plug hanging...
    view full answer...

  • Where is the Brake Controller Plug for a 1998 Ford F-250 Heavy Duty
  • On a 1998 Ford F-150 that came with either a factory 7-Way or 4-Way, the factory harness to plug in a brake controller should be located under the dash, near the center console. It could also be a little behind the center console. I have included a link to a video and a link to an FAQ article that will help you.
    view full answer...

  • Trailer Tail Light and Brake/Turn Light Both Come On with the Running Lights, 2014 Ford Fusion
  • You may be right. There could be a problem inside the converter. If you are getting power on the running light pin and left turn/brake pin at the same time when you should not be then there could be a short in the converter or there is something not wired up correctly. It appears that on the 2014 Ford Fusion the running light and brake light signal are on the same circuit. If grounding the red wire with the white wire does not work, try grounding the brown wire with the white wire instead. If...
    view full answer...

  • Will the Tow Ready Circuit Protected Modulite 4-pole Kit Work with Both Incandescent and LED Lights
  • Yes, the Tow Ready # 119179KIT Upgraded Circuit Protected Modulite with 4-pole Harness and Hardwire Kit will work with both LED and incandescent vehicle or trailer lights. This kit can be used on either 2 or 3 wire systems. The kit includes a modulite 4-pole wiring harness and the install kit. The install kit is composed of a 20 foot section of 12 gauge wire, ring terminals, an in-line fuse for battery protection, a circuit tester, 5 quick splice wiring connectors, and an integrated...
    view full answer...

  • Can the Quick Fix(TM) 4 Pole Flat Trailer End be Used with Wishbone Trailer Wiring
  • A wishbone wiring harness is simply two wires coming out of the running light circuit, one for each side of the trailer, so you do not have to run a jumper wire from one side to the other. If you have wishbone wiring you can still use # HMC20031. You would splice one a few inches back from the trailer connector into the other tail light wire and then attach the single wire to the Quick Fix 4-Way. The other option is to use a wishbone trailer side 4-Way, # A20WB, and cut of the wire to...
    view full answer...

  • Trailer Wiring Harness for a 2011 Ford Crown Victoria
  • For the 2011 Ford Crown Victoria, it is going to take the same wiring harnesses that fit the 2010 Crown Vic or the 2011 Mercury Grand Marquis. You can use trailer wiring harness # 119179KIT or # 46255. In order to install this trailer wiring you will need to use the included circuit tester with # 119179KIT or add # 3808 for # 46255, and test the tail light wiring behind the tail lights to make the proper connections to the wiring harness. I have included a link to the installation instructions...
    view full answer...

  • Adapter Needed to Convert a 7-Pole Trailer Connector to a 4-Pole Trailer Connector
  • Yes, the Pollack 7-Pole to 4-Pole Adapter, # PK12716, is the adapter you will need to connect a flat 4-pin trailer connector. This adapter will provide all of the light functions (running lights, turn signals and brake lights) for a trailer with a 4-pole connector. I have attached a short review video of this adapter for you to check out.
    view full answer...

  • Wiring Instructions for Wiring Harness 119175/119178 for a 2004 Ford Escape
  • The trailer wiring harness # 119175KIT (recently replaced with # 119178KIT) is a hardwire application that requires testing the tail light wiring using the included tester to determine the wiring functions so you can attach the correct wires from the harness. I have included a link to the installation instructions for the updated 119178KIT. They describe the process to follow to test the wires for installation of the harness.
    view full answer...

  • Trailer Turn Signals Not Working When Connected to 2001 Ford F-350 7-Way Trailer Connector
  • There could potentially be a couple of issues going on at the same time. The first thing you are going to want to do is make sure all the functions works on the truck side with no trailers connected. Use your tester to test the connector while someone sits in the truck and runs through the lighting functions. If the truck side turn signals are not working then you will want to check the vehicle owners manual for the locations of the fuses and relays related to the tow package wiring....
    view full answer...

  • Can a European 7-Way Trailer Connector be Converted to a U.S. 4-Way
  • You have 2 options. First you can convert the Ford Focus wiring harness, after installed, to match the trailer. Or you can convert the trailer connector to match the vehicle connector, once it is installed. The easiest thing to do would be to convert the trailer but there may be certain lights and functions required in Europe that are not required in the U.S. I will try to cover both ways for you but there is no simple adapter for either method. To convert the vehicle, first you will...
    view full answer...

  • 12 Volt Power on the Brake Output Pin All the Time On 7-Way Trailer Connector on 1998 Ford Explorer
  • There can be a very small amount of power on the brake output circuit of a 7-Way (5:00 position) which would be the brake controller checking for a trailer, but there should not be 12 volts of power. That indicates a short of some kind or a problem with the brake controller. Since you said you recently added the 7-Way it is possible that inside the connector where the wires attach the 12 volt circuit wire is touching the brake output circuit causing the constant draw. If you address...
    view full answer...

  • Troubleshooting Trailer Turn Signals With 1997 Ford F150 With Factory Wiring Harness
  • You can check the mini fuse panel located behind the power distribution box. There should be a 20 amp fuse in location 2 for the trailer tow stop/turn lamps. Also, in the power distribution box, there is a 40 amp fuse in location 16 for trailer tow battery charge and stop/turn lamps. If this fails to correct the problem you can troubleshoot. The best way is to disconnect the truck and trailer and test each one individually. If you happen to have access to another truck or trailer that...
    view full answer...

  • Using a Battery Isolator on the 12 Volt Circuit on a 7-Way and 2011 Ford Escape
  • The issue you are describing is a common one. The best way to avoid vehicle battery drain is to install a battery isolator # TR118665, in line on the 12 volt circuit to the 7-Way. The black 12 volt wire to the 7-Way will go first to the AUX post on a 40 amp circuit breaker, # PK54540. Then attach a wire to the BAT post on the circuit breaker and attach that to the output side on the isolator. Then connect wire from the input side of the isolator to the positive battery terminal. Both...
    view full answer...

  • Trailer Wiring for a 1994 Ford Aerostar to Tow a Trailer with a 5-Way Round Trailer Connector
  • There is no adapter to go from a 4-Way flat to a 5-Way round connector so you have a couple of options. What I would do is to install a 4-Way flat using # 119178KIT. Then use a 4 to 5-Way flat adapter, # 20036. The extra wire on the adapter, normally for an electric reverse lockout on a trailer, connects to the reverse light circuit on the vehicle or to whatever function the 5th pin is for on the trailer side 5-Way. Then I would remove the 5-Way round connector on the trailer and replace...
    view full answer...

  • Trailer Wiring Harness Options for a 1993 Ford F-150
  • Based on what I have found on the 1993 Ford F-150, you would use one of the wiring harnesses in the link I have provided. This truck should be a 2 wire system with combined turn signals and brake lights. If yours does have separate turn signals and brake lights you would need a converter like # 119178KIT that you referenced. It takes the separate brake and turn signals and combines them.
    view full answer...

  • Parts Needed to Add a 7-Way Connector and Trailer Brake Controller to a 2000 Ford Expedition
  • There are actually a few places the factory connection point can be for a brake controller on your 2000 Ford Expedition. While it should be in the place indicated in the video I have linked, in other Ford vehicles it is found elsewhere: The harness will be located under the dash near the center console on most vehicles. The harness for the Ford Full Size Van is located underneath and left of the steering column. The harness for the Ford Explorer/Mercury Mountaineer is located behind...
    view full answer...

  • Is Any Additional Wiring Needed to Use a 4-or 5-Way Trailer Connector with a 7 to 4/5-Way Adapter
  • By using adapter # 37385 in your truck side 7-Way you will be able to plug in a 4-Way or 5-Way flat and it will work without any additional wiring needed. In order for the electric reverse lockout to work the center pin on the 7-Way must be active (connected to the reverse light circuit).
    view full answer...

  • Troubleshooting 4-way Wiring on a 2001 Ford F-150 and 6-way Wiring on a 1989 Jayco J Series Trailer
  • I would suggest checking all the fuses on your vehicle and make sure they are in proper working order. Then using a circuit tester like the Quickee # 3808 to test the signal at the truck 4-way and make sure that the trailer is getting the proper signal when the functions are activated. If you are not getting the proper signal from the 4-way a replacement kit for your truck would be Curt # C55256. This wiring harness is a T-one style that plugs directly into your OEM wiring harness. If...
    view full answer...

  • 1999 E450 Econoline Motor Home Chassis Brake Controller Installation
  • I unfortunately have no knowledge of wire colors used by Winnebago. We typically recommend that folks wire by function, rather than wire color because wire colors are not always consistent. If I understand you correctly, all the OEM wiring basically terminates under the drivers seat, at which point Winnebago used purple wiring to complete the circuits, is that correct? If so, I would recommend installing the controller, and have a helper pulse the manual braking switch on your brake...
    view full answer...

  • Curt Tail Light Converter Does Not Provide Right Turn Output Signal on 2010 Ford Escape
  • If you have confirmed with a circuit tester (like the Quickee # 3808) that your right tail light wiring is carrying a signal into your Curt powered tail light converter but there is no output signal, then the converter does need to be replaced. First I recommend a careful review of your trailer wiring to ensure that there is no fault condition that could damage a new powered converter. Check the wiring for signs of worn or cracked insulation, pinched wires or a loose ground connection....
    view full answer...

  • How Are The Covers for Hopkins Endurance Multi-Tow Connector # HM48470 Kept Closed When Not in Use
  • The lid for the 7-way connector has a spring loaded hinge and the flexible rubber lid for the 4/5-way flat connector in on a non-spring loaded hinge and fits snugly around the connector plate.
    view full answer...

  • Installing a 7-Way and Trailer Brake Controller on a 2011 Ford F-150 with Factory 4-Way
  • In order to determine if you will need any additional wiring you will want to look under the truck and find where the factory 4-Way harness plugs into another harness forward of the rear of the truck. If you find this harness you will see that where it is plugged in the forward harness has more wires going into it than the harness that leads to the 4-Way. If you peel back the protective covering on the forward harness there should be additional wires. Use a circuit tester like # 3808...
    view full answer...

  • Installing Draw-Tite Activator II Brake Controller on 2003 Ford Pickup
  • If you are speaking of the connector just to the left of the brake controller connector, unfortunately, I do not know its purpose. If your Activator II controller has a plug on it that is not compatible with the Ford connector under the dash, you can cut the existing connector off the controller and use butt connectors to connect the controller to a # 20260 brake controller wiring harness. The connectors are included with the harness. The harness would easily connect to your brake controller,...
    view full answer...

  • Installing Trailer Wiring Harness on a 2004 Ford Focus
  • It looks like you have purchased wiring harness # 18252 which is correct for a 2004 Ford Focus. This vehicle does not require a converter because it has what is called a combined lighting system. This means the brake lights and turn signals are combined onto one circuit. This is the same way most trailers are wired. You will use the included circuit tester to tech the wires behind the tail lights on the vehicle. Starting on the drivers side, where you will be attaching 3 of the wires,...
    view full answer...

  • Can a 2013 Ford Escape Tow an Aluma Trailer with LED Tail Lights
  • If your 2013 Ford Escape has a factory 4-Way, there should not be any issues towing a trailer with LED lights. Some European vehicles have an issue when towing a trailer with LED lights (dash shows a bulb out error) but this does not damage the wiring on the vehicle or trailer and I have not heard of this being an issue on a Ford. If you need to add a wiring harness that is compatible with LED trailer lights, I recommend # 118566. This is a circuit protected powered converter and it...
    view full answer...

  • When Stepping on Brake Pedal and Connected to Dump Trailer Brake Light Fuse Blows on 2004 Ford E-350
  • It sounds like there is back feeding to the van from the trailer when you step on the brake pedal and that is what is causing the fuse to blow. There may be a higher rated fuse on the other vehicle which could be why it is not blowing. It is also possible that there is corrosion in the van side trailer connector that you will have to clear out. You will want to make sure that the trailer connector on the van and on the trailer are pinned out to match each other. I have provided a link...
    view full answer...

  • How to Wire TowReady Harness Kit # 119179KIT in a 2005 Ford Crown Victoria
  • To wire Tow-Ready Harness # 119179KIT I have a picture attached from the installation directions describing the connection points for each wire. I have attached the installation instructions as well as our FAQ for wiring, which is very thorough. This FAQ designates each wire and its purpose.
    view full answer...

  • How to Make an Adapter to go from a 6-way on a Vehicle to a 5-way on a Trailer
  • I would recommend you get a Trailer Connector Adapter, 6 Pole to 5 Pole # TC-129.
    view full answer...

  • Trailer Right Turn and Brake Lights Not Working When Connected to 1997 Ford Explorer
  • Since you have indicated that the right turn and stop light circuits work on the vehicle the next step is to test the connector on the vehicle side using a circuit tester like # 3808. If the circuit is working there as well then the problem is on the trailer. If it is not then the problem is on the vehicle. If it is not working on vehicle connector and the connector is factory, then you may have some relays or fuses blown or missing that need to be replaced. Check your owners manual...
    view full answer...

  • Adding In-Bed 5th Wheel Trailer Wiring on a 2005 Ford F-150 with Factory 4-Way
  • On your 2005 Ford F-150 with the 4-Way trailer wiring harness, if the harness is from the factory it will be fairly easy to add in-bed 5th wheel trailer wiring. Here is what you need to do. First, follow the factory 4-Way wiring forward on the under side of the truck until you find the connector it plugs into. The forward side of this connection point has more wires running into it then go out to the 4-Way. Using a circuit tester like # 3808, find the functions of each of the wires on...
    view full answer...

  • 4-Way Trailer Connector on 2002 Ford Ranger Does Not Fit Trailer Side 4-Way Connector
  • If the two connectors look exactly the same then they are not going to fit. They should be mirror opposites of each other. The vehicle side 4-Way, if they are 4-Ways, has 1 exposed pin and 3 covered pins. The trailer side with have 1 covered pin and 3 exposed pins like in the picture I have added. the ideal solution is to get connectors that will work together. If your truck side is not as I have described then use # 118344 and plug it in line with the vehicle tail lights. If it is the...
    view full answer...

  • Vehicle Wiring Converter to Separate Turn Signals from Brake Lights on a 2012 Ford F-150
  • If you want to add separate turn signals from the combined circuit on the truck then you will need a vehicle to vehicle converter # 118158. The combined left turn/brake light will go to the yellow input wire. The combined right turn/brake light will go to the green input wire. The white wire must be grounded to the vehicle frame. On the output side you will then have a yellow wire just for left turn signal, a green wire just for right turn signal, and a red wire that will only carry...
    view full answer...

  • How to Hard Wire a 2013 Ford Fusion for Towing a Trailer
  • To determine which wires you should splice into on your 2013 Ford Fusion, you will need to use the circuit tester that is included in the Hardwire Kit, # C56201. The easiest way I have found to determine the correct wires, without damaging the wiring, is to disconnect the wiring connector from the taillight and probe the metal tabs inside the connector while someone activates the stop, turn and taillight signals. Once the wiring functions are found you can determine which wire enters...
    view full answer...

  • Correct Trailer Wiring Harness for 2004 Ford Escape
  • You are correct, the # 119179KIT is the recommended trailer wiring kit for your Escape. The wiring kit would need to be hardwired into the tail light circuits of your vehicle. The kit comes with some general instructions, but because this is not a vehicle specific item, we do not have instructions that are specific to your vehicle. You would need to access the rear of your taillight assembles to access the wiring harnesses that connect to them. Beginning with the drivers side, you...
    view full answer...

  • Replacement 4 and 7-Way Trailer Connector for a 2000 Ford F-350
  • You can use the Hopkins 4/7-Way connector # HM48470. All you will need to do is attach the wires from the old connector in the same places on the back of this connector then mount it where you want it. No other wiring harnesses are needed. The replacement 7-Ways we have for a 2000 Ford F-350 that also have the rectangular plug do not have a built-in 4-Way. We have # C55243 and # 118243. You could use one of these and then use an adapter, # HM47570. If the truck came with the factory...
    view full answer...

  • Isolation Solenoid Recommendation for Preventing a Trailer Battery from Draining Vehicle Battery
  • What you could do is install a Tow Ready Battery Isolation Solenoid part # TR118665. You would install this inline with the 12 volt power circuit of your vehicle. You will need to find a circuit that only sees power when the key is on and then run that to the middle post of the # TR118665. What this will do is make it so that it will only allow current to go past the solenoid when the key is on.
    view full answer...

  • Troubleshooting Brake Light on Trailer Towed by 1998 H-D Road King and 2003 Ford Crown Victoria
  • Because the 2003 Crown Vic uses a separate bulb in the tail light assembly for the turn signals, a tail light converter is needed. If the 4-pole you have does not have a converter, and its simply been tapped into the turn and running light circuits, it would explain why the brake lights on any trailer you connect to the vehicle are not working. You can easily test this using a circuit tester like part # 40376. Attach the alligator clip on the tester to the ground pin on the connector (fed...
    view full answer...

  • Troubleshooting 6-way Trailer Connector on 1999 Ford F350 Flatbed Truck
  • There are actually two different accepted methods of wiring a 6-way trailer connector. The center pin on a 6-way trailer connector usually carries the 12-volt accessory circuit that is used for any trailer mounted accessories that might need a power feed, although sometimes it can be wired so it carries the output voltage from the brake controller to the trailer brakes. If you take a look at the FAQ article I have linked you to, you can see a wiring diagram showing how a 6-way should...
    view full answer...

  • Installing 5-Way Trailer Connector on 2011 Ford Explorer to Control Reverse Lockout on Boat Trailer
  • If you already have a trailer wiring harness and 4 to 5-Way adapter like # 20036 then the easiest way to get to the reverse light circuit is to gain access to the wiring behind the reverse lights. This can be difficult if the reverse lights are on the hatch. If they are then they also have to run out from the hatch and into the body at some point, most likely near the top where the hatch hinges. If you keep following it you should be able to find a good place to tap into the reverse light...
    view full answer...

  • Adding a 7-Way Trailer Connector to a 2006 Ford F-150 with a Factory 4-Pole
  • You are correct. The blue wire would be output from a brake controller and the orange is 12 volt power. You can use a circuit tester, like # 3808 if needed, to test the wires to determine which is 12 volt power to be certain. I have included a link to an FAQ article that, in part, talks about the blue and orange wires. If you want to add a brake controller you will need the brake controller itself and the proper wiring harness. For a brake controller i recommend the Tekonsha P2, # 90885,...
    view full answer...

  • What are the Wire Functions for Trailer Wiring Harness C56175 for a 2001 Ford Escape
  • You will need to use a circuit tester like # 3808 if needed to test the tail light wires to determine the functions. You cannot go by color alone because vehicle manufacturers can change wire color so there is no standard. Once you have determined the functions of the wires on the vehicle you will attach the yellow wire to the left turn signal wire, green to right turn signal wire, red to brake light wire, and brown to running lights. The white wire needs to be grounded to a bare metal...
    view full answer...

  • 4-Pole Trailer Wiring Harness for 1995 FORD E-350 7.3L Turbo Diesel Cutaway Van
  • The 4-pole trailer wiring harness we offer for a 1995 Ford Van is part # 118344, however this particular wiring harness is designed to plug inline at the connection between the OEM tail light assembly and the manufacturers wiring harness. Unless your cutaway van chassis uses the OEM Ford van taillights, this harness will not work for you. Assuming that your cutaway uses a combined lighting system that carries the turn signals and brake light signal on a singe circuit for each side (turn...
    view full answer...

  • Trailer Taillights Do Not Work When Connected to 2001 Ford Van 6-Way Connector
  • The white ground wire should attach to the pin on the vehicle 6-way connector that is located at the 2-oclock position. Please take a look at the photo provided; this is labelled to show to which pin the ground wire should attach. Since you have two white ground wires, it sounds like a second ground jumper wire has been added to provide a better ground connection. A ground jumper wire should connect on one end to the same spot on the frame as the main ground wire and the other end to another...
    view full answer...




Stay Connected


Subscribe to email newsletter

Email  

privacy - we don't send unsolicited email






etrailer.com reviewsetrailer.com reviews

All images, layout and content copyright etrailer.com