Troubleshooting Blown Fuse for T-One Trailer Wiring on a 2021 Jeep Wrangler

Question

Question:

I keep blowing the fuse at the battery. I checked the black wire and found a break but fixed it. Still blowing fuses. I am using a 10amp fuse. Am I missing something?

asked by: Mike S

0

Expert Reply:

Hey Mike!

It sounds like you've got a wiring harness like the Tekonsha T-One # 118786 installed on your 2021 Jeep Wrangler. This uses a 15 amp fuse which may be why you're still blowing fuses since you're using 10 amps instead.

Try using the 15 amp rated fuse and if that blows as well it means you have a bad ground connection somewhere, whether that's the ring terminal on the white wire (which needs to be connected to a clean, bare metal surface) or you have some other wiring that's damaged and touching metal somewhere.

expert reply by: Jon G

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Answer 1

Yes, in order to convert the 4-way trailer wiring harness on your Toyota Rav4 into a 7-way trailer wiring harness you just need a simple adapter, the Curt Trailer Connector Adapter part #C57672 which features a plug-in install. The two 4-ways will…

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Answer 2

Functionally speaking, there isn't a huge difference. The Curt #C56382 has a slightly lower capacity at 3 amps for circuit for stop/turn signals and 6 amps for taillights. The Tekonsha #118781 has a capacity of 5 amps per stop/turn circuit and…

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Answer 3

The trailer brake output or blue wire is not connected on a 4 to 7-way adapter like the 4 to 7-Way with 4-Way Adapter part #ETBC7L when using a wireless trailer brake controller like the Curt Echo Wireless Brake Controller part #C51180. The two four…

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Answer 4

I would not recommend using fuses instead of a circuit breaker when installing a brake controller like the Primus IQ #TK90160. While it does protect the circuit it also totally kills the circuit till the fuse is replaced. A breaker will reset…

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Answer 5

In regards to a 4 to 7-way adapter, you'd need to use a fuse or circuit breaker on both the brake output circuit as well as the battery charge line circuit. I recommend the Universal Installation Kit for Trailer Brake Controller part #ETBC7 since…

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Answer 6

If you are hardwiring the Tekonsha Voyager #39510 in to your tow vehicle then you need to connect the following colors on the included pigtail to the following functions: Black - 12V Power to battery White - Ground Blue - Brake Controller pin on…

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Answer 7

There are a few ways to troubleshoot this issue. The first one would be to check your owners manual for the fuse diagram. The should be one listed for the running lights. If that fuse is good, there should also be a listing for the fuses related to…

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Answer 8

Hello Carlos, Yes, you can most definitely secure the converter in the inside of the driver side rear light housing. The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #118786 will be a great fit for your 2021 Jeep Wrangler. I went…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

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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Answer 11

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 12

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Troubleshooting Blown Fuse for T-One Trailer Wiring on a 2021 Jeep Wrangler

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