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Expert Answers about Ford Wiring


  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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,...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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.
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  • 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...
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  • 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...
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  • 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,...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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.
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • Where to Find the Reverse Light Wire at the Back of a 2013 Ford Escape
  • On the 2013 Ford Escape, testing the wires to find the right one is the only way to know for sure if you have the correct wire since going by color is not always reliable. 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 will go through the rear hatch. If you were to open the hatch you may be able to find the harness at the top that goes from the hatch into the vehicle. That is likely the easiest...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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...
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  • 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...
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  • 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...
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  • 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...
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  • 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.
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  • 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.
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  • 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....
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  • 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...
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  • 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...
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  • 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...
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