How To Wire 7-Way for Curt Echo On 2021 Toyota Highlander

Question

Question:

My 2021 Highlander is going to wind up with a 4 pin trailer connector after I add the necessary converter. I will then adapt this to a 7 pin. Why do I have to run a power wire to the batterywont the 12V from my camper back feed into the brake controller?

asked by: Robert I

1

Helpful Expert Reply:

In order to install a 7-way on a 2021 Toyota Highlander I recommend the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # TK99FR and then the 4 to 7-Way with 4-Way Adapter part # ETBC7L. In regards to the installation of the adapter, the black power wire will need to be run to the vehicle battery if using a wireless brake controller like the Curt Echo Wireless Trailer Brake Controller part # C51180. The controller would not be able to receive power from the trailer. The blue wire on the other and won't be needed nor would the yellow in most cases.

expert reply by: Conner L

1

Answer 1

Hey Antoine, so the two kits you mentioned are actually really similar and honestly I would go with the part #ETBC7 if I were you. The #ETBC7L is basically the same thing minus a couple wires and breakers so you may as well get the kit that has…

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Answer 2

A 7-way trailer wiring harness is a very commonly used trailer connector that most trailers are designed to work with. The only other common wiring connector that you might encounter would be a 4-way. Which all you would need then to convert your…

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Answer 3

I recommend the Curt Echo Wireless Trailer Brake Controller - 1 to 2 Axles - Proportional Item #C51180. If the dealership is installing the 7 pole connector, this controller doesn't require any additional wires to be ran inside the vehicle.…

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Answer 4

The particular parts you need to install a fully-functioning 7-Way on your 2019 Toyota Highlander Hybrid will depend on what exactly it's already equipped with. Either way you will need to start by adding a 4-Way connector harness. If your…

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Answer 5

In order to use the brakes on your trailer you will need to start by adding a 7-way to your 2018 Toyota Highlander. In order to add this you can use the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer…

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Answer 6

The newest Toyota Highlander we've installed a brake controller in is a 2014 model. I attached the install video to this page to show you the processs. The 2014 and 2018 Highlanders are the same generation though so what you see in the install…

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Answer 7

The most likely issue is a blown or missing fuse for the trailer lighting. Locate the fuse panel under the hood, on the driver's side, near the fender. Your Owner's Manual can additionally provide you a picture of the location and…

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Answer 8

The correct wiring harness for your 2022Toyota Highlander with factory tow package is the T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector #TK74FR. The #TK74FR is the right wiring harness since you have the factory…

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Answer 9

The first thing you will need to do to get a 7-way and brake controller installed on your 2022 Toyota Highlander is to get a 4-way connector. The T-One Vehicle Wiring Harness with 4-Pole Flat #TK99FR will be plug directly into existing wiring located…

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Answer 10

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 11

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 12

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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