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Hyundai Tucson Trailer Wiring

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Hyundai Tucson Trailer Wiring Harness

Make installing a trailer wiring harness on your Hyundai Tucson as easy as possible with a custom fit wiring harness from Draw-Tite, Curt, Pollak, Tow Ready, Bosal, or Hopkins. A custom kit will eliminate or reduce the need to cut and splice wires in your Hyundai Tucson while helping to protect sensitive electronics.




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Hyundai Tucson Custom Fit Vehicle Wiring Videos

Trailer Wiring Harness Installation - 2014 Hyundai Tuscon

Today on our 2014 Hyundai Tucson, we'll be installing the Curt T-connector vehicle wiring harness with a 4-pole flat trailer connector, part number 56101. First, we'll open up the rear hatch. Then, starting on the driver side, we'll remove the two fasteners that secure the tail light housing. Remove the fasteners and then we're going to go ahead and pop the tail light housing free. Be careful not to break the alignment tabs underneath. Now, we can disconnect the manufacturers wiring that goes into the back of the tail light assembly, removing the connector from the socket. To do that, we'll press on the locking tab, removing the connector. Then, we'll go ahead and set tail light assembly aside.



Trailer Wiring Harness Installation - 2012 Hyundai Tucson

Today on this 2012 Hyundai Tucson, we're going to install part number 118501 from Tow Ready. First thing we need to do is go ahead and open up the back hatch, and then we need to remove the tail lights. There will be 2 screws that we have to remove for our tail lights. Once the screws are removed, we need to pull straight back on the tail light to release it from the body work. There's a small tab we have to push down, and then we can release it and pull it away. Then we'll go ahead and set the tail light away for now.





Hyundai Tucson Custom Fit Vehicle Wiring Questions and Answers


  • Trailer Wiring Harness Left Turn/Brake Light Circuit Keep Failing on a 2011 Hyundai Tucson
  • Since it sounds like this is a recurring problem it might indicate a problem on the trailer, specifically a short or overdraw situation that is causing the failure. The only reason I think this might be the case is because it is unlikely that 2 harnesses would fail in the same way. You will want to check the trailer wiring for any pinched or frayed wires that might be causing a short. Also make sure that the vehicle and trailer side connectors are clean and free of corrosion. Ultimately...
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  • Malfunction of Tow Ready Trailer Wiring Harness # 118501 in 2011 Hyundai Tucson
  • Thank you for your recent purchase from etrailer. Many times issues related to wiring harness installation can be traced to a weak ground, so you can make sure the white ground wire is secured to a clean bare metal surface. But in your case it does sound like the converter box may be damaged. Certain faults in trailer wiring could damage a converter. If this is what happened in your case it could result in leakage from the output side of the converter back to the input side where the...
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  • Troubleshooting a Curt 4-Way Harness with No Output Voltage
  • What you will want to do is test the wires going into the box of the Curt Wiring Harness part # 56146KIT for voltage with a circuit tester like the # 3808 to see if there is voltage going into the box when the taillight functions of your vehicle are applied, and then test the output side of the box to see if the current is making it through the converter. If not then the problem is that the converter box has shorted itself out and would need to be replaced. Before you replace it you...
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  • Troubleshooting Trailer Lights That Do Not Illuminate with Power on the Vehicle 4-way
  • Since you tested the 4-way on your 2011 Hyundai Tucson for current and found that it appears to be working correctly one would logically conclude that the problem is on the trailer side of the equation. Another test you could do is run a jumper wire from a vehicle batter positive post to the different pins of the 4-way on your trailer to see if the lights illuminate. If so, then the problem is on the vehicle. If they still do not illuminate then the problem is most likely the grounds...
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  • Trailer Wiring Harness for a 2007 Hyundai Tucson
  • On some vehicles the specific trim level might matter. But in this case, for your 2007 Hyundai Tucson and a trailer wiring harness, it does not matter. You can use Curt harness # C55528 no matter what trim level you have. I have included a link to the installation instructions for you to view.
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  • Troubleshooting # 56146KIT Trailer Wiring Harness Installed on 2010 Hyundai Tucson
  • Unless your trailer is unusually well lit, the # 56146KIT wiring harness should have plenty of capacity. From your description, it sounds like your converter has an internal short that is allowing the 12-volt feed from the battery feed back into the vehicle taillights. You can confirm this by using a circuit tester like part # 40376 on the inputs of the converter. With the vehicle shut off, you should only see power on the 12-volt battery feed. If you find power on any of the other wires,...
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  • Tail Light Converter on 2008 Hyundai Tucson Keeps Shorting Out
  • If you have a harness that is currently acting up, you can use a circuit tester like part # 40376 and do some troubleshooting on it. You can activate the right turn signal, then use the tester to check the green wire on the input side of the converter box to ensure that the signal is reaching the box. Then, test the green wire on the output side to make sure the signal is leaving the box. Repeat the same test with the yellow left turn and brown running light wire, checking both the input...
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  • Trailer Turn Signals Do Not Work With Brake or Running Lights On a 2012 Hyundai Tucson
  • This sounds like a bad ground connection on the trailer since 2 separate harnesses yielded the same results. To make sure it is the trailer and not the wiring harness you can test the installation using a circuit tester like # 3808 if you need one. Unhook the trailer and use the circuit tester to test the 4-Way end of the harness while someone sits in the vehicle and goes through the various functions. Be sure to test the turn signals with the brakes applied and/or the running lights...
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  • Taillight Removal 2012 Hyundai Tucson to Install Curt T-Connector 4-pole Wiring Harness
  • After reviewing the notes on your order I see that you now have the correct Curt T-Connector Wiring Harness specifically fit for your 2012 Hyundai Tuscon, # 56101. The Curt T-Connector # C55528 that you referenced is considered a fit for Hyundai Tuscons from 2005-2009. After discussing the difficulties that you are describing with both Curt and fellow experts, it is not uncommon that the taillights of your vehicle are difficult to remove. It sounds like the mounting pegs are very snugly...
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  • Installing T-One Harness # 118501 on 2013 Hyundai Tucson
  • The instructions included with the # 118501 wiring harness for your 2013 Tucson are a bit on the vague side. The procedure is different from the Santa Fe harness you mentioned. The first step in the install involves removing the tail light assemblies (as if you were changing a burned out taillight bulb). Disconnect the manufacturers wiring harness from the rear of the assemblies. You will then need to remove the spare tire cover (cargo area floor) and threshold. Then, locate and...
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  • Installation Instructions for Tow Ready Trailer Wiring for a 2009 Hyundai Tucson
  • We have not yet had the opportunity to install trailer wiring harness # 118397 on a Hyundai Tucson yet so I do not have any pictures or a video. But, what I do have is a link to the installation instructions that do contain some pictures that will help show where the harness installs. Basically, you will need access to the wiring that goes to each tail light.
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  • Trailer Wiring Harness for a 2011 Hyundai Santa Fe GLS
  • If the 2011 Hyundai Santa Fe came with a tow package, it should have already had a wiring harness. The Tow Ready harness # 118258 is a replacement. But, it is still possible for the vehicle to have the connectors for the harness. If the connectors you found are not matching up, it could be the wrong connectors and you will have to continue searching for the right ones. If the vehicle never had a wiring harness before, or you cannot find the connectors and what to try something else,...
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  • Installation Of Tow Ready Custom Fit Vehicle Wiring # 118501 On My 2011 Hyundai Tucson
  • The item you selected, Tow Ready Custom Fit Vehicle Wiring, part # 118501, is designed to protect the vehicle wiring as it draws power directly from the vehicle battery. I cannot recommend attaching the power wire to the vehicle tail light harness as it could possibly overload the circuit and/or damage the vehicle wiring. You will want to find a rubber grommet on the floor of the rear cargo area. Then remove the grommet and cut a slice in the grommet to feed the power wire through. You...
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  • Tips on Routing the Power Wire for Circuit Protected T-Connector Vehicle Wiring Harness # 56101
  • The best way to run the power wire to the battery on Curt Circuit Protected T-Connector Vehicle Wiring Harness, # 56101, is basically what is easiest for you while adhering to a couple of important safety tips. First, it is easiest to route the wire under the vehicle rather than through the inside. If you were to route the wire inside the vehicle, you would have to go to a lot of trouble removing trim panels or other components, in order to properly conceal the wire. Routing it under the...
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  • Left Brake Light Not Working After Installing Cargo Box With Lights on 2006 Hyundai Tucson
  • If the cargo box that is on the back of her 2006 Hyundai Tucson has lights on it, then there is a possibility that something is not hooked up correctly or has come disconnected. I would start by checking the trailer wiring connector on the 2006 Hyundai Tucson, part # 118397 and make sure it is working correctly and not corroded. Also, make sure it has a good ground connection with metal to metal contact. Also check to make sure all the wiring points are good. If the connector is...
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  • Do You have Instructions for T-One Harness 118397 for a 2008 Hyundai Tucson
  • We do have the instructions available for part # 118397 for a 2008 Hyundai Tucson. I have linked them below. Our installers can do these in as little as 5 minutes. I looked at the instructions and it should not take more than 1 or 1.5 hours, depending on mechanical ability and skills. Take a look at the instructions. They will give you a prety clear idea of what is involved.
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