Select Your Vehicle
Select Your Vehicle


Filter Questions and Answers:


reset filter

Expert Answers about Ford Wiring


  • Troubleshooting 3035-P Connector Doesn't Power Brake Controller When Installed in a 1998 Ford F-250
  • It sounds like the pin out for your # 3035-P may be off. You may actually have a different harness that uses the same connector, but has a different pin out on the side that installs on the vehicle. You will want to verify that the pin out of your connector matches what is in the picture I attached. If yours is different you can use a paper clip to release the wires from the connector so that you can move them where they belong.
    view full answer...

  • Replacing Existing 7-way Trailer Connector on Motorhome on Ford E450 Chassis
  • Depending on the 7-way connector you presently have, we might have a very easy solution for you. Take a look at your existing 7-way, and see if it's possible to unplug the factory harness from the back of the connector. There will be a gray locking tab that needs to be slid toward the front of the vehicle before the connector can be unplugged. If it's possible to unplug the harness, the Tow Ready # 20119 would be a perfect plug and play replacement. If you cannot unplug the connector...
    view full answer...

  • 4-Pole to 4-Pole Adapter to Connect a Colorado Sport Trailer to a 2004 Ford Ranger
  • Thanks for the pictures! On your Colorado Sport trailer, I have a solution for you but the connector that came with your trailer doesn't match the typical style vehicle trailer connectors and unfortunately no adapter is available. I recommend splicing in the Draw-Tite 4-pole trailer end connector # 18004 as it will connect with your existing 4-pole connector on your 2004 Ford Ranger. Because your trailer uses separate turn signals from the brake lights, you will also need to splice...
    view full answer...

  • Recommended 7 Way to 5 Way Adapter for 2014 Ford F-250
  • I have just the thing for you. Take a look at the Hopkins 7 way to 5 way adapter # HM47075. The adapter plugs into a 7-Way blade style on the truck and has a 5-Way flat at the back to plug in any trailer that uses a 5-Way flat. I have included a video review of this part for you to check out.
    view full answer...

  • Trailer Brake Lights Do Not Work When Connected have a 96 ranger with seprate turn and brake
  • Whenever any type of adapter like # PK12716 is used to mate different types of connectors on the vehicle and trailer, connection problems can develop because of all the extra contact points. The best way to go is to install a new connector on the trailer that directly matches that on the tow vehicle so that you can avoid using an adapter. This is easily done by using a junction box like # 38656 and a new 7-way plug like # H20044. All you need to do is verify the function on each trailer...
    view full answer...

  • Mounting Hardware for a Bargman 7-Way Super Sealed Connector with Cable
  • I recommend the plated steel mounting bracket # PK12711U-26 for the Bargman 7-way super sealed connector # 50-87-002 because it has ports for mounting a 7-way round or 4-flat trailer connector. The mounting holes are 2-1/4 inches eye to eye. See diagram I included. The mounting hole dimensions on the 7-way super sealed connector # 50-87-002 are 1-1/2 vertical eye to eye and 2-1/4 horizontal eye to eye. See picture. Take a look at the video reviews for each product if you would like.
    view full answer...

  • Troubleshooting 7-Way to 5-Pole Adapter with the Left Turn Pin Isnt Working
  • That's kind of an odd problem...does the left turn pin (9:00 position) in the 7-way function properly when the adapter isn't being used? Use a circuit tester like part # 40376 to ensure the trailer connector's been wired correctly. Activate the left turn signal, then test the pin in the 7-way for the left turn. If you're not getting a signal, use the tester on the wiring harness feeding the 7-way. If you're not getting power reaching the 7-way on that circuit, you likely have a blown fuse....
    view full answer...

  • Troubleshooting Trailer Running Lights That Dont Work When the Rest of the Lights Do
  • In addition to the main ground, each tail light assembly at the back of the trailer must also have a ground. These are most commonly grounded to the trailer frame or through the bolts of the tail lamp assembly. I recommend checking to make sure that each light on the trailer has an adequate ground. Next I would check to make sure that both connectors, vehicle and trailer, are free of dirt and corrosion. If both are in good condition, I would move on to testing the vehicle connector....
    view full answer...

  • 5th Wheel Wiring Harness for 2000 Ford F-150 Extended Cab
  • Yes, you can add a second 7-way in your truck bed for 5th wheel towing while keeping your existing bumper-mount 7-way active. Curt harness # C56000 plugs in inline with the existing wiring leading to your 7-way. It allows that socket to remain active while adding the second 7-way in the truck bed for towing your 5th wheel trailer.
    view full answer...

  • Troubleshooting 12 Volt Accessory Circuit Not Functioning After 6-Way Connector Install
  • It is possible that you shorted out the 12 volt trailer wiring circuit of your truck while you were wiring in the connector. Since this circuit would have voltage all the time it would be pretty easy to short it out while wiring up a new connector. Check the fuse box for the 12 volt accessory trailer circuit relay/fuse and replace as needed.
    view full answer...

  • Recommended Trailer Wiring Harness for 1998 Holiday Rambler
  • Your 1998 Holiday Rambler shouldn't require a special converter but if the installation was completed per the instructions and this is the second unpowered converter that you have tried, I recommend trying a powered converter with circuit protection like the Tow Ready, # 119190KIT. With a powered converter the power is drawn directly from the vehicle's battery which virtually eliminates any draw on the taillight circuit.
    view full answer...

  • How to Rewire Trailer for 6 Way Connection with Separate Turn Signals and Brake Lights
  • First you will want a new 6-way like the Hopkins 6-Way Molded Connector, # H20036. Installing the 6-way plug will be made easier by using a junction box such as # 38656. This box mounts to the trailer frame and serves as a connection point between the trailer's original wiring and the new 6-way. Also you will want some Deka jacketed 2 wire, 10 gauge, brake wire # 10-2-1 to run the brake output circuit from the junction box to the brake assemblies as well as some Deka 16-gauge bonded 4-wire...
    view full answer...

  • Dimensions of Bargman 5th Wheel and Gooseneck 90-Degree Pigtail Harness # 51-97-407
  • I pulled a sample of the Bargman 90-Degree Pigtail Harness # 51-97-407 from our warehouse so I could take the measurement you require. As shown in the linked photo the distance from the rear surface of the mounting flange to the 90-degree bend is 3-3/8-inches.
    view full answer...

  • 4-Way to 6-Way Wiring Adapter to Power Lights and Charge Battery of Camper
  • Sounds like you have a 4-way connector at the rear of your 1999 Ford F-150 and are looking for a way to install a 6-way so that you can power the camper you have that has a Pollak 6-way like the part # PK11604. For an adapter you would want the part # 30637. This will plug into the 4-way and will convert the taillight signal to a 6-way. To activate the power circuit for the camper battery you will need to run the black wire from this adapter to the positive post of the truck battery...
    view full answer...

  • Installing 7-way Connector on 2003 Ford Explorer with Factory Tow Package
  • If you'll follow the wiring from your 4 pole trailer connector back under the vehicle, you'll find it plugs into a connector on the driver's side frame rail. Just past where it plugs in, remove the tape or wire loom from the wiring harness. You should see an orange (or red) and a dark blue wire. The orange wire carries a trailer power circuit from the battery, and the blue wire connects to where you plugged the controller in to carry the braking voltage to the trailer brakes. You'll...
    view full answer...

  • Brake Controller and Wiring Recommendation for a 2008 Ford Explorer Towing Trailer with 6-Way
  • The part # 37175 could be used to adapt your 4-way to a 6-way, but you will be required to track down several other components so that you can make the connector functional and to install a brake controller. A better product to get would be the part # ETBC6 as it comes with everything needed to convert the 4-way to a 6-way and wire up a brake controller. I attached a link to install instructions plus an install video for you to check out. I also attached a picture that has a diagram...
    view full answer...

  • Factory 7-Way Replacement Recommendation for a 2014 Ford F Series Super Duty Truck
  • The truck manufacturers all decided to start using the same 7-way wiring harness connectors in the early 2000's, so the # PK11893 will fit all of them. I attached a picture that shows what the round connector looks like that the 7-way is designed to fit. As long as your 2014 Ford F Series Super Duty has/had a factory 7-way installed on it, or the connector is present, the part # PK11893 will be the correct part to use.
    view full answer...

  • Installing 7-Way Trailer Connector on 2001 Winnebago
  • From what you describe, your trailer connector isn't converted. Most trailers use the same bulb for brake lamps and turn signals, so the signals for the right turn and brake lamp are combined onto one circuit, and left turn/brake lamp are combined onto another. I wouldn't use the 47435 adapter, I have a better solution for you. For starters, I'm assuming your trailer lamps operate as I mentioned above. If that's the case, you'll need to install a converter like # 119178KIT on the circuits...
    view full answer...

  • Wiring a Truck Bed Camper Shell Brake Light on a 2007 Ford F-150
  • To wire a brake light only on a truck bed topper/camper shell you will need a dedicated brake light only circuit. Tow package wiring would not work because the brake light circuit and turn signal circuits are together. So you would either need to find a wire under the truck that is dedicated brake light only or you would need to tap into the CHMSL (center high mount stop lamp) circuit. Check the owners manual to see if the CHMSL is fused by itself or if the fuse handles other functions...
    view full answer...

  • Installation Of 4-Pole to 7-Pole On 2006 Ford Expedition
  • I recommend using the Hopkins Adapter 4-Pole to 7-Pole and 4-Pole, part # 37185 for your 2006 Ford Expedition. I have attached a photo of the adapter that shows the wires and what they are used for you can check out. You can find the wires you need to connect the adapter to on the driver's side frame rail as shown in the photos I have attached. I have also attached a helpful article that explains how to complete the installation. I recommend using a circuit tester like part # 3808 to...
    view full answer...

  • Troubleshooting 4-Way Harness On 2013 Ford F-150 And Trailer Wiring
  • If you installed the 4-way connector at the back of your 2013 Ford F-150, you can check the connector first to make sure it is wired correctly. I recommend using a circuit tester like part # 3808 and check each pin for function. You want to make sure the pin connected to the yellow wire shows current for your left turn and brakes, green is for right turn and brakes, brown is for the tail lights, and the white wire is the ground which should be secured to a clean, bare metal surface. You...
    view full answer...

  • Mounting Bracket Recommendation for Use with 4-Way to 7-Way Adapter part # 37185
  • The correct bracket to use for the 7-Way Adapter part # 37185 is the Mounting Bracket part # 18138. This comes with the bracket and the mounting screws.
    view full answer...

  • Installing New 7-Way Harness On Camping Trailer With Electric Brakes
  • I have attached a helpful article that explains trailer wiring. You are correct that most diagrams do list the Yellow wire for the left turn and green for the right turn wiring. Since you are re-wiring the entire trailer you can easily make sure you run the wires to match your 2011 ford Explorer wiring. You can test your Explorer wiring by using a circuit tester like part # 3808. Test each pin for function and not by color. Then match the pins on your trailer connector to the mating...
    view full answer...

  • Replacement 7-Way Recommendation for a 1994 Ford Bronco
  • The easiest way I can recommend you replace the 7-way on your 1994 Ford Bronco would be to go with a part # 20023. You will have to cut the harness running from your 7-way and then wire the new 7-way by function. To determine what wires go to each other you can use a circuit tester like part # 3808 to test all of the wires by function while a buddy applies the different taillight functions of your Bronco and then wire it by function according to the diagram I attached.
    view full answer...

  • Troubleshooting 7-way On 2004 Ford F150 Not Showing Left Turn Signal
  • If you've tested the 7-way on the vehicle, and have determined that you have no signal on the left turn signal pin, closely examine the trailer connector. Make sure it's not damaged or excessively corroded and clean/replace if necessary. If the trailer connector checks out okay, take a look at the wiring harness that feeds the 7-way, right behind the connector. Find the yellow wire in the harness and use a circuit tester like part # 40376 to test the wire as a helper activates the left...
    view full answer...

  • 7-way Recommendation to Replace a 6-Way
  • I would recommend you cut off the 6-way you have at the rear of your truck and then install a # 50-87-004 in it's place. I attached a couple wiring diagrams for the two styles of connectors so that you would know how to wire up the new 7-way with the wires from the 6-way.
    view full answer...

  • Where to Find the Orange 12 Volt Power Wire for Wiring a 7-Way on a 2010 Ford Expedition
  • Follow the 4-way trailer connector wires from the trailer connector to the front of the vehicle. These wires connect to a factory plug along the frame rail, usually on the driver's side, between the back tires and the rear bumper (see attached picture). The factory plug should be mated to another connector which has wiring that continues back toward the bumper. There are more wires coming from the front of the vehicle than there are coming out toward the 4-Way plug. Ford wires the front...
    view full answer...

  • How to Install a 7-Way on a 2010 Ford Expedition EL with a 4-Way
  • The 2010 Ford Expedition should have a round connector at the rear of the vehicle where your 4 pin plug is plugged in. If there is a round connector there you can use the Replacement Multi-Tow 7-Way and 4 Pole Trailer Connector, item # 20119, to replace the 4-Way OEM connector on your Expedition. If your Expedition does not have the mating round connector under the rear of the vehicle you will need to use a 4-Way to 7-Way adapter like item # 37185, to provide a 7-Way connector at the...
    view full answer...

  • Instructions to Wire Dump Trailer with Electric Brakes
  • I would use the RV-Style Trailer Connector, # PK12706, which you reference, and install the wires in the proper locations in the 7-Way connector. Our wiring page, see link, has photos that detail the wiring configuration of the 7-Way RV trailer connector for you to check out. You will need to test the functions of each wire using a 12 volt battery to determine their function. Once you know the function, you can use our trailer connector wiring diagram to make the proper connections.
    view full answer...

  • Troubleshooting a Trailer that Taillights, Blinkers Both Flash and Only One Running Light
  • It sounds like the problem is the wiring of your truck like it sounds you have determined already. What I would do is use a circuit tester like part # 3808 to test the circuits of your 7-way while a buddy applies the different taillight functions. Use the diagram I attached to the right for more info. The problem could be as simple as corrosion on the connector that needs to be cleaned off (inside or outside of the connector), or it could be that the wires of the connector have shorted...
    view full answer...

  • Troubleshooting Trailer Brakes that Lock Up When Connected to Trailer Wiring
  • This is a fairly common problem for trailer setups that use 6-way connectors like the # PK11604 that you referenced. The issue is that there is two accepted ways the connector can be wired up. The only difference between the two setup is that the brake output circuit and the 12 volt accessory circuits are swapped. It sounds like your vehicle is wired one way and the trailer is wired the other way. What you will need to do is swap the two circuits on either the trailer or the truck....
    view full answer...

  • Horse Trailer Brakes Lock Up When Connected to 1999 Ford F-250
  • It sounds like either the trailer side connector is not pinned to match the vehicle side connector or there is a short circuit (possibly due to corrosion on the pin or inside the trailer connectors) causing the brakes on the trailer to lock up. The easiest thing to check first is for dirt/corrosion on the pins and inside each of the trailer connectors. Then you can make sure that the trailer side connector is wired up to work properly with the vehicle side connector. I have included...
    view full answer...

  • Flat Towing Wiring Options for 2014 Ford F-150 Platinum
  • Strictly speaking, both you and your friend are correct. It just depends on which type of toad wiring harness is used. The link at right will show you all flat-towing wiring kits for the 2014 Ford F-150 Platinum. These include a custom-fit option from Hopkins, part # HM56000. This kit installs without cutting and splicing by plugging in to the F-150 tail lights and includes integrated diodes to prevent feedback. This operates as a combined lighting system.
    view full answer...

  • Troubleshooting Factory Trailer Wiring for 2003 Ford F250
  • First I recommend cleaning the connector and make sure there is no corrosion on the pins. Check the wires at the back of the plug. You may need to remove the wires from the connector as corrosion can build up in the connector. If all of the connection points are corrosion free, then begin testing the wires themselves. Since you are not receiving a signal on some of the pins I recommend tracing those wires back till you find a point where the signal is active. It may be that connection...
    view full answer...

  • Brake Controller Install on 2000 Ford F-150 With 4-Flat trailer Connector Using Adapter # HM47200
  • The additional wire leads on the Hopkins # HM47200 Quick-Install Trailer Connector Adapter are provided to deliver additional signals to the 7-way vehicle socket. These signals include the brake controller output signal (blue wire), the trailer 12V power feed (red wire) and the vehicle's reverse light signal (purple wire). The white wire is ground. The blue lead connects to the blue wire at the back of your brake controller; the red wire connects to your vehicle battery positive terminal...
    view full answer...

  • Replacing 4-Pole Trailer Connector on Trailer With 7 Different Circuits Feeding It
  • It sounds like you've got a pretty good handle on what you're dealing with. You're correct, the green is right turn/brake, yellow is left turn/brake, black/green is right taillight and black/yellow is left taillight. The remaining wires are almost certainly grounds. I'm guessing you're not the original owner of the trailer or the person who wired it last time. Rather than grounding each trailer lamp directly to the trailer frame by its mounting studs or individual ground wires connected...
    view full answer...

  • Installing a 7-Way and Brake Controller on a 1998 Ford Expedition with 4-Way Flat Connector
  • On a 1998 Ford Expedition with a factory 4-Way trailer connector, it is fairly easy to install a 7-Way and a brake controller. All you will need is the 4- to 7-Way adapter and the proper brake controller wiring harness. If you follow the factory 4-Way forward on the vehicle you will come to a point where it plugs into a forward connector. There are more wires going into the forward connector then go out to the 4-Way. On the forward connector and the wiring running to it, pull back the...
    view full answer...

  • Adapter to Mate Round Vehicle Connector with 5-Pole Flat Trailer Connector
  • Most often vehicles with factory- or dealer-installed trailer connectors have a 7-way RV blade style connector, but indeed sometimes a 6-pole round pin socket can be found on vehicles. The part you referenced, Pilot 6 Pole to 5 Pole & 4 Pole Adapter # TC-129, has the correct configuration to adapt your vehicle and boat trailer that has a 5-pole flat connector. Adapters are great for occasional or short-term applications but you may find that over time you'll prefer to replace one of...
    view full answer...

  • Trailer Wiring Recommendation for a 2003 Ford Crown Victoria
  • Yes, the Hopkins Active Taillight Converter with Install Kit # 46255 that you referenced has been confirmed to fit your 2003 Ford Crown Victoria so it would be a great option to use to install trailer wiring. I attached installation instructions to the right for you to check out as well. Another option you have is the part # 119178KIT, this is also confirmed to fit your vehicle. We had the chance to install this wiring kit in a very similar 2003 Crown Vic as yours and shot an install...
    view full answer...

  • Troubleshooting a 2013 Ford Escape that Hyper Flashes When Connected to Trailer with LED Lights
  • You have a couple options to solve the hyperflashing problem you are experiencing with your 2013 Ford Escape when towing your RV. You can either use a product like the part # C57003 or you can take your vehicle to a Ford dealer and they will do a software update on your vehicle which should fix the problem. There should be a technical service bulletin that said that trailers with LED taillights can cause the Escapes to hyper flash and they can fix it if you bring the vehicle in to them.
    view full answer...

  • Trailer Connector on 1994 Ford F-250 Only has 12 Volt Power on the Center Pin
  • If it is really a 6-Way and not a 7-Way blade style trailer connector then the center pin being hot would indicate that particular pin is the 12 volt power circuit. But the other functions not working could mean that tow package wiring fuses and/or relays are missing or need to be replaced. Check the truck owners manual to find the locations of any and all fuses related to the tow package wiring. If the wiring was added and is not factory then you will need to check the wiring connections...
    view full answer...

  • Troubleshooting Running Lights and Dash on 1986 Ford Econoline Jayco Motorhome
  • You said you checked the fuses. Some motorhomes have fuse boxes in multiple locations, inside the engine compartment, inside the cab under the dash, and even in the camper sewer/electrical compartment. Sometimes a fuse may appear to be in good condition, but really needs replacing. To rule that out, take a new fuse that has the same rating and insert it into the proper location. If the problem is a short, and the next fuse that you insert shorts out as well, you will need to use the...
    view full answer...

  • What Is The Wiring Configuration For 4-Way Round Connector
  • On a flat 4-way connector, the standard function is Green is the right turn signal and brake, Yellow is left turn signal and brake, White is ground, and Brown is the running lights, used when the headlights are on. You may want to test the wires for function just to be sure. You can use a circuit tester like part # 3808 for that. I have attached a photo that shows typical wiring for a 4-way round connector.
    view full answer...

  • 4-Way Recommendation for a 1997 Dutchmen Popup with a 6-Way Square
  • The pinout of the # 30104 that you referenced will only work on Jayco trailers. Although the connector is the same the wires are run to different pins on the 6-way side of the connector. Your best option would be to cut off the 6-way on your trailer and then wire up a 4-way to the trailer wires. For that I would recommend the # HM48110. You will need to wire the 4-way up by function to your trailer and not wire color as they most likely are different. The yellow wire of the 4-way...
    view full answer...

  • Parts Needed to Install a Prodigy RF and 7-Way Connector to a 2013 Ford Escape
  • The Hopkins adapter # 37185 works great with the Prodigy RF wireless trailer brake controller # 90250. You will also need about 20 feet of 10 gauge wire # 10-1-1, and 40 AMP circuit breaker # PK54540. The Prodigy RF will need 12-volt circuit on a 7-way to work which is why you need the 10-gauge wire and circuit breaker. I recommend using dielectric grease between the two connection points to help keep down corrosion. The Edelman dielectric grease part number is # 11755 I have included...
    view full answer...

  • Will Hopkins Endurance Flex-Coil Trailer Connector Adapter Work With Heavy-Duty 4-Way Connector
  • If you have a round 4-way connector, the Hopkins Endurance Flex-Coil Trailer Connector Adapter w/ Nite-Glow, part # HM47043, should work just fine. This adapter plugs into a 7-pole blade-style connector for use with a 4-wire round connector on your towed vehicle. This also has a Nite-Glow feature so you can make your connections even in the dark. I have attached a video you can check out for this connector.
    view full answer...

  • Adding 5th Wheel/Gooseneck Trailer Wiring in the Bed of a 2015 Ford F-350 with 4-Way Flat Connector
  • To determine if you will be able to use the 5th Wheel adapter harness # 20140 you will need to follow the factory 4-Way back to where it plugs into another harness. If the plugs are round and match the picture I have included then you could use this adapter and you would still have full functionality of the bumper mounted 4-Way. But if you used this item you would have to then hardwire the blunt cut wires to the back of a vehicle side 7-Way. So if you do have the round connectors that...
    view full answer...

  • Brake Controller and Wiring Recommendation for a 2006 Ford Explorer with Factory 4-Way
  • What you will need to install a 7-way/4-way on your 2006 Ford Expedition would be the Hopkins Adapter part # 37185. Your current 4-way will plug into the 4-way of this adapter and will connect to the vehicle's tow package wires which are along the rear frame rail (if present). Check out the two picture I attached to determine if you have the tow package wiring on your vehicle plus the FAQ article I attached as well on installing a brake controller in a vehicle such as yours. If you...
    view full answer...

  • 4-Way Trailer Wiring Harness Recommendation for a 2014 Ford C-Max
  • The recommended trailer wiring harness for your 2014 Ford C-Max is the Curt Harness part # 56146KIT. The local trailer rental place would have no problem at all installing this kit as I am sure they install similar harnesses on vehicles on a regular basis. There are instructions included with this kit that I attached to the right in a link as well as an install video. For ball mounts I recommend the etrailer Ball Mount Kit # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with...
    view full answer...

  • Where to Connect the Red Wire of a Brake Controller in a 1995 Ford F-150
  • For the red wire of your brake controller you will need to tap into the brake light switch of your 1995 Ford F-150. What you need to do is test the wires of the switch at the brake pedal to determine which of those wires sees voltage when the brakes are applied and none when released. That will be the circuit you attach the red wire of your brake controller to. The brake controller should still power on though without this connection being made. As long as the power wire (black) and...
    view full answer...

  • No Power from Ford Brake Controller to 7-Way Trailer Connector on 2010 Ford F-150
  • I think this might be the ultra-rare Ford dummy harness issue. A few years ago I had a customer with a similar problem. It took days of troubleshooting and a savvy Ford tech at a dealership to determine that the harness behind the dash that the controller plugs into was not a complete harness so that could be what is going on. Ford would have to provide the harness. If you have the correct harness, which is likely given how rare this issue is, then it could be another problem with bent...
    view full answer...

  • No Power to 7-Way Trailer Connector on a 2004 Ford F-150
  • It sounds like a possible tow package fuse has blown on your 2004 Ford F-150. You will want to use the truck owners manual to find the locations of all fuses/relays associated with the tow package wiring to check them. The 12 volt pin on a 7-Way does not affect the regular trailer lights and the fact that everything stopped working with the interior lights is what makes me think the issue is related to the tow package fuses (specifically the one that controls the 12 volt circuit on the...
    view full answer...

  • Trailer Wiring Installation on 1999 Ford E450 Van
  • If you're speaking of the video showing the # 119178 being installed on a 1999 Ford Van (see link), the harness is wired into the vehicle side of the van, closer to the front of the vehicle. The vehicle being wired in the video had a 'separate' taillight system, meaning that the turn signal and brake lamp are combined on the same circuit. You can quickly tell if your vehicle has this type of system by looking at the taillights. If the turn signals use a separate amber bulb or there's an...
    view full answer...

  • 5-Way Adapter Recommendation for a 2008 Ford Explorer Sport Trac
  • Your 2008 Ford Explorer Sport Trac should come with a 4-way already installed. All you would need to convert it to a 5-way would be a # 20036. Next you will need to do is figure out where to run the fifth (blue) wire of the # 20036. Most likely this wire is used for a reverse lockout for surge brakes, or reverse lights. If this is the case you will need to tap into the reverse light circuit of your Soul using the included quick-splice. I attached an installation video for the # 20036...
    view full answer...

  • Best 7-Way Trailer Connector Extension for a 1996 Ford Super Duty
  • It sounds like you are looking for an extension for the factory 7-Way on your truck to add in-bed wiring. We do have 1 option that would work but it is 7 feet long. If you can work with that it is # 20027.
    view full answer...

  • Tracking Down Possible Poor Ground Connection on Travel Trailer
  • What you're describing is the classic symptom of a poor ground connection somewhere in your trailer lighting system. When all the functions are being used, you're drawing maximum amperage through the system, which is when a ground problem will manifest itself. Trace the white ground wire back from the trailer connector. The wire will usually ground to the trailer frame somewhere on the trailer tongue. Make sure this connection is secure and not corroded. Each trailer lamp will also have...
    view full answer...

  • When Trailer Connected to 2002 Ford F-350 Trailer Lights Do Not Work
  • This sounds partially like a ground issue. Ground problems normally show up when there is more draw on a system such as when you have the running lights on and then use another function like a turn signal or brake light. Make sure that the vehicle side and trailer side connectors are clean and free of corrosion inside and out. The main connector grounds should be attached to clean and corrosion free bare metal surfaces. Even if the pins in the connectors are clean, corrosion can build...
    view full answer...

  • No Trailer Brake Signal on Factory 7-Way Using Prodigy P2 Brake Controller on 2003 F-250
  • Given the 11-year-old age of your vehicle (and presumably its 7-way factory-installed trailer connector) the issue you are having with no brake signal at the brake circuit pin on the 7-way could be a result of a corroded or damaged 7-way. You can use # HM40975 as a replacement for a factory 7-way. First I suggest you carefully inspect both sides of the F-250's 7-way looking for any signs of damaged wire, worn insulation or even slight greenish or whitish discoloration. Corrosion does...
    view full answer...

  • What Wire Gauge Needed for 12V Trailer Power Feed
  • A 12V trailer power circuit will typically be wired with 12-gauge wire, part # 12-1-1, but certainly there is no harm in using heavier 10-gauge wire # 10-1-1. If one tow vehicle is longer than another, our installers may opt to use the heavier gauge wiring than they would for a physically shorter vehicle. When in doubt you can always use 10-gauge.
    view full answer...

  • 7-Way Adapter Recommendation for a 2004 Ford Expedition Towing Surge Brake Trailer with Lockout
  • All you need is the 4-way to 7-way adapter part # 37185. Now to activate your reverse light solenoid you have on your trailer with surge brakes all you will need to do is connect the purple wire of this harness to the reverse light circuit of your 2004 Ford Expedition. To find the right wire you will want to use a circuit tester like part # 3808 to test the wires of the reverse light harness. Once you find the circuit that has current when the reverse lights get turned on you will attach...
    view full answer...

  • Installation Instructions For Hopkins 4-Pole To 7-Pole And 4-Pole Adapter On 2002 Ford F-150
  • I have attached a couple of helpful articles that explains how to attach your Hopkins Adapter 4 Pole to 7 Pole and 4 Pole, part # 37185. I have also attached a drawing that shows where the wires need to be run from the adapter you can check out. As the attached video shows, you may have a harness on the driver side up along the frame rail you can splice the blue wire and the black wire into the wires on the vehicle. For additional blue wire if needed, I recommend part # 10-1-1,...
    view full answer...

  • Troubleshooting Non-Functioning 7-Way on Motorhome
  • Since your wiring was accidentally pulled out of the motor home socket, and since you have already checked your fuses and relays, it could be that the socket itself or its connector was damaged. We do offer a replacement 7-way for the F-450 SD and that is part # 20119 from TowReady. This OEM replacement harness installs using a round U.S. Car connector and provides both 4-pole and 7-way connection points.
    view full answer...

  • Troubleshooting Trailer Lights After Installing Hopkins Adapter 4 Pole to 7 Pole and 4 Pole # 37185
  • You will want to test the Escape's 4-pole wiring, that connects to the Hopkins Adapter # 37185, to determine if the vehicle is properly sending the lighting signals to the adapter. Use a circuit tester like # 40376 on each of the wires on the vehicle's 4-pole harness. Ground your tester to the exposed pin for the white ground wire. The yellow wire should carry left turn and stop light signals; the green wire should carry right turn and stop light signals; the brown wire should carry a running...
    view full answer...

  • How to Determine What the Orange Wire of Trailer Wiring Circuit is on Trailer with 9-Way
  • The colors of the wires used for wiring up a trailer can vary widely among trailer manufacturers. Especially on a trailer as old as yours where someone could have rewired the connector with whatever wire was convenient. To determine the function of the wire you can trace it back to see where it terminates or you can use a jumper wire from the positive post of a vehicle battery to put 12 volts on that wire to see what circuit activates. Typically on a trailer with a 9-way installed...
    view full answer...

  • 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...

  • Install Video for the Tow Ready Wiring Kit part # 119147KIT
  • We have an install video for the Wiring Kit part # 119147KIT on a vehicle that I attached that will show you how it would install on a 2014 Ford Explorer like what you have, but we haven't had the chance to install this kit on a 2014 Explorer so that video is not available. The install process will be the exact same though. You will need to test the tail light wires from the harnesses and wire them up accordingly. I also attached a set of installation instructions for this kit for...
    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 4-1/4 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...










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