See what our Experts say about this CURT Custom Fit Vehicle Wiring

• Trailer Brakes Lock Up when Trailer is Plugged into 2015 Nissan Xterra
  The issue you are describing comes up now and again with certain Nissan vehicles. Apparently, depending on which plant the vehicle was built in, the brake output wire and the 12 volt power wire are reversed on the vehicle wiring harness. Basically to fix the problem all you have to do is swap the blue and black wires inside of the Curt harness 7-Way part that plugs into the vehicle # C56226. There are a couple of ways to do this: Repair Option 1 This option is the best for the longevity...
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• 7-Way Wiring Harness For 2013 Nissan Xterra
  Hey Josh, thanks for reaching out. The Curt T-Connector Vehicle Wiring Harness # C56226 is what you will need to add a 7-way to your 2013 Nissan Xterra. It isn't available without the relays though, so you will end up with a few extras. Might not be a bad idea to swap out the old ones for the new ones, just to make sure everything works as it should.
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• 7-Way For 2021 Nissan Frontier Without Factory Tow Package
  We do have an option for you as the Hopkins # HM43534 is only for the factory tow package. So because your 2021 Nissan Frontier does not have the factory tow package, you'll need a wiring kit that includes the relay jumper harness which connects to a 12-pin plug that is behind the kick panel on the passenger’s side in the cab. The correct part to add a 7-way is the following: - Curt T-Connector Vehicle Wiring Harness # C56226 The relays and jumper harness of the # C56226 are not available...
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• Troubleshooting Brakes Staying on When Connected to 7-Way on 2012 Nissan Pathfinder
  Thank you for all of the details. I'm glad to hear that all of your lighting functions are working properly. That takes quite a bit of troubleshooting out of the equation. The red wire that was referenced looks to carry the reverse light function. If your trailer has reverse lights then you definitely want to make that connection. For the answer page you are referencing the customer was looking to use the Adapter # 37185 along with the T-One # 118266 which is the equivalent of the Curt...
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• 7-Way Trailer Connector Recommendation for a 2016 Nissan Frontier
  The only way to order a 7-way for your 2016 Nissan Frontier is to go with the part # C56226 which includes the jumper harness and relays. The good news is that you would have spares in case you were to damage a relay. If you happen to already have the round connector at the rear of your vehicle that just a 7-way connector would plug into you could use the part # PK11893 to plug right into that. But we do not have just the harness that would before that on the vehicle wiring.
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• Wiring Needed To Install a 4-Way and 7-Way on a 2007 Nissan Xterra Without Factory Tow Package
  I hope I am fully understanding that you want to have both a 4-way and 7-way on the back of your 2007 Nissan Xterra. The Curt T-Connector Vehicle Wiring Harness # C56226 is the correct harness to give you a 7-way, but the Replacement Harness # 118263 is for the Tekonsha and will not fit with the Curt already connected. Instead you should get the Curt and replace the end with the Multi-Connector # HM40950 which will plug right in place of the Curt 7-way and you will have both the 7-way...
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• Constant Power on Blue Trailer Brake Wire After Installing 7-Way on 2012 Nissan Frontier
  On wiring harness # C56226 the larger brown relay is for the 12 volt circuit on the 7-Way and the two smaller blue relays are for the turn signal circuits so none of them would cause the constant power draw on the blue brake wire but I think I know what the problem is. On some Nissan vehicles the connectors where the 7-Way plugs in are wired differently than on other Nissan vehicles. To fix the issue you can swap the blue and black wires on the harness that plugs into the vehicle.
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• Troubleshooting 7-Way Trailer Connection Wiring on 2017 Nissan Frontier
  In your 2017 Nissan Frontier, the Curt brake controller should be installed using the custom wiring adapter # C51382. This should work correctly to give you the proper wiring within your cab. Then you will use the Curt # C56226 or the Tekonsha # 118266 to get the correct 7-way. If you have done this even using the previous relays, check your trailer connection for functions using the attached photo and a circuit tester like # PTW2993. It sounds like the trailer may be mis-wired and...
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• Trailer Wiring Recommendation for 2019 Nissan Frontier
  Hey Marvin, for your 2019 Nissan Frontier we have direct fit trailer wiring options like with the Curt part # C56226 for a 7-way or the part # C56225 if you need a 4-way. 7-Way connectors are the round ones and 4-ways are the flat ones you see on smaller trailers typically.
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• Parts Needed to Install Brake Controller on 2023 Nissan Frontier
  Installing a brake controller on your 2023 Nissan Frontier will require a 7-way along with the brake controller itself. Since you do not have the factory trailer connector you will need the Curt T-Connector Vehicle Wiring Harness # C56226. This plugs directly into the OEM tow package port at the rear of your vehicle. For a brake controller, I recommend the Redarc Tow-Pro Liberty # RED24FR. The main unit installs out of sight so only the control knob will be visible in the cab of your...
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• No Drill Brake Controller For A 2026 Nissan Frontier
  Hi Bob! The Curt Spectrum Brake Controller w/ Custom Harness - Dash Mounted Knob - Up to 4 Axles - Proportional # C99GV does indeed stick to the dash, so there is absolutely no drilling needed for the install. The knob attaches to the main unit via a 4' long cable, so you will need to figure out where and how you want to run that. This also comes with the pigtail adapter that will plug directly into a port under your dash, so you just need to decide where you want to mount everything and...
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• Part Needed to Add 7-Way to 2011 Nissan Pathfinder
  To add a 7-way to your 2011 Nissan Pathfinder, all you need to do is add the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # C56226. This will replace your 4-way and give you the 7-way you need to tow your camper with electric brakes. You'll then be able to use a brake controller like the Curt TriFlex NEXT # C24VV with Wiring Adapter # C51382.
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• Installing a Brake Controller on a 2012 Nissan Frontier with the Factory Plug Missing
  Since auto manufacturers use different color wires and do not stick to one specific color all the time, the best way to install any electrical components is to use a circuit tester like # PTW2993 and test the wires by function and not by color. On a Nissan typically, the stop light wire is Red with a Green tracer, but using the circuit tester to find the wire that only shows power when the brake pedal is depressed is the wire you are looking for. You will want to connect the Red wire on...
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• How to Determine if 2007 Nissan Frontier has Tow Package
  Your 2007 Nissan Frontier will have the tow package, as will all models, and the reason there are relays with the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # C56226 is that they will activate that tow package. You do need to install the relays when you are using this wiring harness and if you go to the 2:30 mark of the linked installation video of this harness on an '08 Frontier (which will be the same as the install on your '07), you can...
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• Troubleshooting 12 Volt Pin of 7-Way on Nissan Frontier Not Active after Wiring Install
  On wiring harness # C56226 the larger brown relay is for the 12 volt circuit on the 7-Way. Since this is the circuit that is giving you troubles this would be where I would assume the issue is. Check to make sure it's connected properly and seated fully. Next you'll want to check under the hood for trailer wiring fuses and replace as needed. If you don't want to mess with the vehicle's factory wiring and want to bypass the circuit so that you can activate it you do have the option to...
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• Adding a 7-Way and Brake Controller to a 2014 Nissan Xterra
  All 2014 Nissan Xterras will have at least some part of the tow package wiring but not all of them. Models that came with the factory tow package will have everything including a connector at the back. To determine if your Xterra has all of the pre-wiring you can have a Nissan dealer run the VIN and they should be able to tell you how the vehicle is equipped so you won't have to go digging around in the vehicle. As far as a brake controller you can check under the dash to see if your Xterra...
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• Recommended Highest Capacity Hitch for a 2023 Nissan Frontier
  The highest capacity trailer hitch for your 2023 Nissan Frontier is going to be the Draw-Tite Trailer Hitch item # 75282. This hitch is custom fit and bolts to your Frontier with included hardware. This is a class III hitch with a 2" receiver. It has a 5,000 lbs towing capacity, and a 750 lbs maximum tongue weight. This towing capacity and tongue weight can be increased to 8,000 lbs and 800 lbs when used with a weight distribution system. The Draw-Tite Trailer Hitch item # 75282 weighs...
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• No Power At Running Light Pin On Trailer Connector For Pathfinder
  Splicing into your 2012 Nissan Pathfinder's tail light could work but could also create some problems. Some vehicles don't have enough power in the tail light circuit to power additional lights and you might start blowing fuses. If possible you really want to isolate the issue and fix the wiring if you need to. It sounds like you have checked all of the fuses and they are good. It also sounds like you have already isolated the issue down to the Pathfinder's wiring and not the trailer side...
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• 2013 Nissan Frontier SL 7-way Wiring Harness Installation Troubleshooting
  The relays that you need to install that came in the Curt T Connector Kit # C56226 would still need to be installed on the wiring harnesses in order to get your lights to work; you may need to go through the firewall on the passenger side of the engine compartment and push those wires into the cabin of the vehicle to make them easier to find from behind the kick plate. Once you locate them and install the relays your lights and power should work. If you're able to get the relays plugged...
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• Recommended Hitch And Wiring For A 2016 Nissan Frontier
  Hi Worrel, For your 2016 Nissan Frontier I recommend the etrailer Trailer Hitch Receiver # e98869 that you were already looking at. This is a super easy bolt up installation that can you do from home to save on installation costs. If don't have a torque wrench we offer them with part # ALL944001 or you can typically rent them for free from your local auto parts store. I've also attached a video below where Dave will walk you through the installation process. If you're planning on towing...
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• How to Set a 2012 Nissan Frontier Up for Towing a Trailer with Brakes
  You are correct in that you will need to use a brake controller in order to operate the brakes on a trailer. The Curt Venturer Trailer Brake Controller part # C74VV is a fit for your 2012 Nissan Frontier and will not require any splicing so long as you also use the Curt Custom Wiring Adapter part # C51382. The relays and jumper harness that you are referring to are not included with the brake controller and will need to be purchased separately. If your Frontier came with a factory 7-way...
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• Wiring And Relays Compatible With 2010 Nissan Pathfinder
  Yes. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector # C56226 is a fit for your 2010 Nissan Pathfinder and utilizes the relays you referenced in the Curt Relay Kit for Nissan Aftermarket Tow Package # C57000. The combination of the relays and the wiring will give a 7-way trailer connection to your vehicle utilizing the factory wiring already present.
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• Repinning Curt Harness C56226
  Yeah I'm not sure why it was written like that. The only way to repin the # C56226 is to cut and resplice them, unfortunately.
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• Complete Towing Set-Up Needed for 2014 Nissan Xterra
  To get your 2014 Nissan Xterra set-up and ready to tow, you will need five components. I have included an article which covers this. 1) Trailer Hitch Receiver - The Curt Class III Trailer Hitch Receiver, # 13514, will provide you with 400 lbs of tongue weight capacity and 4,000 lbs for towing. 2) Ball Mount - To determine which ball mount is needed for your set-up, we just need to get a couple quick measurements. You'll want to measure the hitch height from the ground to the top of the...
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