Troubleshooting Wire Harness Short Circuit on a T-One Trailer Wiring Harness with Converter

Question

Question:

Well I put one of these on my truck and after several monthes I started smelling burnt wires and was having break light turn signal light and other light issues. I finally relized it was the harness and when I unplugged it my light issues on my truch return to normal. So what may be the problem?

asked by: Stacey F

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Expert Reply:

It sounds like the converter on the T-One Wiring Harness, item # 118325, is shorted. There are many reasons which could cause the converter to go bad. Most often connecting to a trailer that has a short in the wiring is the cause. The only solution in this case is to replace the wiring harness and then making sure the wiring on any trailer you may be towing is correct.

expert reply by: Robert G

0

Answer 1

All of the trailer wiring harnesses for your 2019 Kia Sportage require running the power wire up to the vehicle battery. While this makes for a more involved install it does allow your vehicle to have more circuit protection and you'd never have…

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Answer 2

The T-One Vehicle Wiring Harness #118377 that you referenced will not short out the vehicle wiring in the event of a trailer wiring short. It has circuit protection built into the harness. The converter box will short out and fail which would prevent…

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Answer 3

It sounds like the #118325 might be bad since you checked the voltage before the unit and there was power but after there is not. However, since this is the second one of these you have gone through it sounds like you might have a short somewhere on…

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Answer 4

It sounds like there may be a damaged or missing fuse on your 2020 Subaru Ascent. I recommend checking your fuse panel for any damaged or missing fuses that are identified as trailer or turn signal fuses. You can also test the wiring going into the…

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Answer 5

Yes, we do have a wiring harness that has both a 7-way and a 4-way for your 2020 Subaru Ascent. However, you will need a 4-way connector on your car before this will work though. I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat…

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Answer 6

The first thing you will want to check is the in line fuse on trailer wiring harness #118467. If it is blown or missing that could be the root of the problem. Installing this harness can be a little tricky if the vehicle has factory backup sensors.…

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Answer 7

It is possible that during the installation of the fuses and relays that something got knocked loose or damaged. Check the fuse panels where those items were installed and see if anything is damaged or missing. Also, make sure the relays are in the…

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Answer 8

What I would do is try bypassing the tee connection on the Curt T-Connector #C56413. If you plug everything back up how it was before you installed this kit then you can test the 7-Way at the back of your 2018 Ford F-150 to see if everything is…

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Answer 9

Johnathan, since there there is a signal with the lights off, then there is a problem on the vehicle side. What you're going to need to do is check to make sure that the brown wire is properly connected to the running light wire at the rear of…

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Answer 10

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 11

You will need the Red LED Trailer Clearance or Side Marker Light #328-K-52 or Amber LED Trailer Clearance or Side Marker Light #328-K-51 for your 2018 Forest River Sunseeker motorhome. These lenses have the same Top Command SAE-AP2-16 markings on the…

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Answer 12

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Troubleshooting Wire Harness Short Circuit on a T-One Trailer Wiring Harness with Converter

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