See what our Experts say about this Tow Ready Custom Fit Vehicle Wiring

• No Trailer Connection on Tekonsha P3 Brake Controller 90195 on a 2000 Toyota Tundra
  I would start by inspecting the connector on your trailer and the vehicle to make sure there is not corrosion in the connector which could be causing a bad or weak connection. If there is corrosion in the trailer side connector, you would need to replace it with 7-way Connector, part # A7WCB. For the replacement vehicle side connector, you would need Adapter 4 Pole to 7 Pole, part # 30717. For future use, I would recommend using Dielectric Grease for Electrical Connectors, part # 11755,...
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• What is Required to Use Curt Echo Trailer Brake Controller
  To use the Curt Echo Wireless Trailer Brake Controller # C51180 your vehicle only needs 12 volt, ground, and turn signals connected to its 7-way socket. What this means is you do not need the brake signal from the 7-way. For example, if you used a 4-to-7 way adapter such as # 30717, there will not be an output wire from the Echo to connect to, so you could simply tie that wire off, as you can see by the accompanying diagram. Apart from that the only other thing required is that your...
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• Converting a 4-Way Trailer Connector to a 7-Way on a 2014 Toyota FJ Cruiser
  The # 30717 is exactly what you're looking for as long as you don't need the 7-way to supply anything other than lights on the trailer. You just plug the 4-ways together, connect the white ground wire to the vehicle's frame using the included screw, and cap off the other wires. If you need the other functions of the 7-way, such as if the trailer has electric brakes or needs a constant 12-volts for power, the instead your best option is our # ETBC7 kit. This kit includes the adapter similar...
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• Installing Brake Controller on 2007 Dodge Ram with Factory 7-Way or Factory 4-Way Trailer Connector
  If your 2007 Dodge Ram already had a 7-Way, then all you would need to do is connect the Hopkins Replacement harness, # 42145, and install the brake controller and plug it in to the factory tow package plug. If your Ram had a factory 4-Way, there are a couple of more steps. Start by plugging in the brake control adapter into the OEM harness located under the steering wheel, just to the right of the emergency brake pedal. Then find a place to mount the brake controller. Look for a connector...
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• Setting Up a 2009 Ford E-350 Van without Factory Towing Package for Brake Controller Wiring
  There are 3 options from the manufacturer for the 2009 E-350 Ford Van. Factory 7-Way trailer wiring, factory 4-Way trailer wiring, and no existing trailer wiring. I will go over all three since you did not indicate which one your vehicle has. If you have the factory 7-Way trailer wiring, you will be able to use the 3034-P wiring harness that you selected to easily install your prodigy brake controller. When looking for a port under the dash, it will be near the top of the instrument cluster,...
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• Can I Charge My Trailer Battery Using 7-Way Trailer Connector on Truck
  You would not be able to charge your battery through the wiring on your 4-way trailer connector. Since your truck has a 7-way connector, you could maintain the power to the battery but not charge it. To begin, you would need to cut off your 4-way trailer connector and install a 7-way connector on the trailer like the Optronics 7-way, part # A7WCB. You would need to connect the appropriate wires. White is ground, Yellow is left turn and brake, Green is right turn and brake, and Black is...
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• 4-Pole Flat Wiring Harness for 2008 Nissan Frontier
  The # HM43575 would work as a replacement, you would need to unplug your current harness and plug in the Hopkins in the 4-pole connector slot; you can see exactly where in the photo I've provided. I've also attached a link to a video review of this product for you to take a look at.
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• Trailer Wiring Harness Recommendation for a 2008 Honda Ridgeline
  Yes, the CURT T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector # C55585 is the correct wiring harness for your 2008 Honda Ridgeline. To install this kit you will basically just need to access the tail light harness on both sides of the rear of your vehicle and install the harness from the # C55585 inline with it. Check out the installation instructions I attached that detail this also. If you need a 4 to 7-way adapter for a trailer that does not have electric brakes you...
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• Troubleshooting 4-Way to 7-Way Adapter Where Circuits aren't Active But 4-Way Is Good
  Sounds like maybe the ground wire isn't connected properly if you are plugging in a known working 4-way to the # 30717 and you can't get the functions to work even with a tester. I'd make sure the white wire is connected to a clean metal surface on the vehicle frame and try again.
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• 7-Way Upgrade Kit that Includes Charge Circuit for Battery Charging
  We have a 7-way upgrade kit part # ETBC7L that comes with everything needed to install a 7-way in place of a 4-way and comes with the parts needed to activate the 12 volt charge circuit of the connector as well. Basically it's the same thing as the # 30717 except comes with a wire that runs to the vehicle battery and a breaker to install inline with this circuit.
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• How to Locate the Brake Switch Wire on a 2012 Ford Escape to Install a Trailer Brake Controller
  In order to find the correct wire to connect to the brake controller red wire on your 2012 Ford Escape, you will need to use a circuit tester, like # PTW2993 if needed. You will need to probe the wires with the tester on the brake switch located above the brake pedal. You want the wire that shows a signal only when the brake pedal is pressed. If you find a wire that also shows a signal when the turn signals or headlights are on it is not the correct wire. I have included an FAQ link that...
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• Parts Needed to Complete Installation of 7-Way Adapter on 2010 Honda Odyssey
  If you only bought the adapter the first thing you're going to need is an actual 4-way on your 2010 Honda Odyssey. The # 118438 will plug into the connection point in your rear cargo area. Once this is done, you can plug the 4-way end into your 7-way adapter to carry over the signal functions for your trailer. After that, you will need the Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers # 5506. This comes with everything you need to complete the installation of your...
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• 4-Way to 7-Way Adapter Recommendation for Installing Curt Echo Brake Controller
  If your plan was to install a brake controller you'd have to also run the black wire of the 7-Way Adapter part # 30717 to the to the positive post of your vehicle battery as well as the ground you mentioned. The Curt Echo part # C51180 that you referenced needs the black wire to power it and then uses the other signals from the 4-way adapter to tell when the vehicle brakes are on. For a different adapter that comes the extra wire and breaker to activate the needed circuit for the Curt...
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• Where Does the Red Wire for a Brake Controller Attach to a Vehicle
  The red wire on a brake controller signals the controller that you are stepping on the brake pedal, so it has to be connected. It does not operate the brake lights on the trailer. It attaches to the cold side of the brake switch. The brake switch is located above the brake pedal. If I knew the year, make, and model of the vehicle I might be able to tell you which wire it is. To find it you will need a circuit tester like # PTW2993 if you do not already have one. Use the circuit tester...
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• How to Connect Trailer 7-Way to 2017 Toyota Highlander with Factory 4-Way
  We have just what you need to tow your camper with your new 2017 Toyota Highlander. First, if your Coleman Popup Camper does not have electric brakes and you are only needing to power its rear signal lights, I recommend installing the Tow Ready Adapter Vehicle End # 30717. This will plug right into the 4-Way connector on your Highlander to provide a 7 pole round plug to hook up with your trailer. You will simply tie off the remaining wires from the adapter as they will not be needed...
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• 7-Way to 6-Pole Trailer Connector Adapter for Horse Trailers
  Most horse trailers have a 6-pole trailer connector. In order to attach the 6-pole trailer connector to your vehicle then you will want to use the Hopkins Heavy-Duty, Coiled Trailer Connector Adapter part # HM47083 if the center pin on your vehicle connector is for 12v power or part # HM47085 if the center pin on your vehicle connector is for the brake circuit. You will need a 7-way connector on your vehicle in order to activate the trailer brakes on your horse trailer. If you do not...
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• 4-Way to 7-Way Adapter Recommendation for Towing Pop Up Camper
  Most likely what you would need is the part # 30717. This has a 4-way on one side of the connector that would get plugged into your Explorer and 7-way connector on the other side for connecting to your trailer. This 7-way is a 7-way blade style connector which is different from a 7-way round, but since the overall shape of the connector is round the terms get confused frequently. Since a 7-way round is typically found on heavy duty trailers, and RV style trailer almost always have a 7-way...
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• Troubleshooting Dim, Pulsating Trailer Running Lights
  It sounds like the problem is on the trailer wiring. 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. The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue,...
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• Where to Find Brake Output Circuit of 2006 Ford F-150 with 4-Way
  You have to look at the driver side frame rail for the wiring needed to connect to the blue wire of the # 30717 that you have. I attached a couple pictures that show what you are looking for.
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• Tekonsha Brake Controller Adapter for a 2018 Jeep Cherokee
  In order to install the Tekonsha Primus IQ Trailer Brake Controller part # TK90160 on your 2018 Jeep Cherokee you will also want to use the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers part # 3014-P. This adapter is a direct plug and play option that will allow you to install the Primus IQ on your Jeep without having to cut or splice any wires. The adapter will plug into the the back of your brake controller and into a pigtail harness under your drivers side kick panel. If...
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• Connecting Ignition Switched Power From 2015 Toyota Prius v to Enclosed Trailer
  You will need to use a circuit tester like # PTW2979 to find a wire in your 2015 Toyota Prius v that is hot only when you use your key (ignition switched power). When you do that you can simply wire in the Battery Isolation Solenoid # PK5231201, which should be wired like in the accompanying diagram with 10 gauge wire # 10-1-1. I have added a link to a video review of the solenoid for you to check out.
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• How to Select Weight Distribution System for Horse Trailer
  For your 2018 Toyota Highlander, the Curt hitch that fits is # C13200 and this hitch is compatible with weight distribution systems. It has an 8,000 lb towing capacity and 900 lb tongue weight capacity when used with a weight distribution system, which gives us a good idea of the system you need. In order to choose the best weight distribution system you will first need to know your total tongue weight (TTW), which is the tongue weight of your fully loaded and ready to go trailer plus...
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• Parts Needed to Tow Tent Trailer With 2011 Mercury Mariner
  The wiring you will need for your 2011 Mercury Mariner is T-One Harness # 118551, which will give you a 4-way connector. To use that with the 7-way on your tent trailer you would need to use the 4 Pole to 7 Pole Vehicle End Trailer Connector # 30717, which provides connection points for both your vehicle and trailer's plugs. To mount the adapter you may want to use no-drill bracket # C57202 along with Mounting Bracket for 7-Way # 18138. You can see how to mount this adapter in the video...
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• How to Deactivate 12 Volt Accessory Circuit of 2018 Toyota Tacoma 7-Way
  Hey Scott, if you can't find the fuse you could simply cut the wire that is ran to the 1:00 position of the 7-way and then tape it up on the vehicle side and you'd accomplish the same thing.
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