Installing 7-Way Trailer Connector on a 2018 Toyota Highlander Hybrid

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Question:

For the Highlander Hybrid, the battery is not under the hood it is in the back. Where should we connect the wires and breakers from the ETBC7 kit. Thanks

asked by: Jean-Philippe L

0

Expert Reply:

Instead of extending the black wire from the 7-Way plug in 7-way upgrade kit part # ETBC7 to the battery under the hood you would extend the black wire from the plug to the positive side of the battery in the back of the vehicle with a 40 amp circuit breaker. You would then need to extend the power wire from the brake controller adapter back to the battery in the back of the vehicle with a 30 amp circuit breaker. The ground wire of the brake controller would need to be extended back to the battery as well to the negative side of the battery. I have attached a wiring diagram for your reference, just pretend the battery in the wiring diagram is closer to the back of the vehicle.

Another option would be to use the kit part # ETBC7L with the Curt Echo brake controller part # C51180. The Curt Echo only requires the black power wire of the 7-way to be active and the ground to be grounded to a clean bare metal surface. The ETBC7L and the Echo will be an easier install for you especially since the battery is in the back of your vehicle. You won't need to extend any wires from the cab to the back of the vehicle because there is not a box in the cab. You can extend the black wire from the ETBC7L plug to the battery using the 40 amp circuit breaker and then ground it. You can plug the 4-way wiring from the Highlander into the pig tail from the ETBC7L. Then plug the Curt Echo in line with the 7-way plug and that's it. The brake settings can be controlled via your smart phone with an app.

expert reply by: Heather A

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Answer 1

To get both of the 2021 Subaru Outbacks pulling the Safari Condo F1743, you would need to purchase two of the #ETBC7 kits. They would piggy back off of the existing 4 pin connections already on the vehicles, so you are already partially there. I…

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Answer 2

Since you already have a 4-way connector on your 2018 Toyota Highlander you need to use one of our adapter kits to convert it to a 7-way. If the trailer doesn't have brakes you only need to power its lights and the battery so you can use…

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Answer 3

I have exactly what you need to complete the wiring on your 2023 Toyota Highlander Hybrid! I'm not sure why the dealership would say adding a 7-Way would void the hitch warranty since they are completely different parts that aren't…

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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

We can definitely help install a brake controller and 7-way on your 2024 Toyota Grand Highlander but first the brake controller I recommend is the Redarc Tow Pro Liberty part #RED24FR with the install harness part #RED69FR. As this controller puts…

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Answer 6

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion…

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Answer 7

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 8

You are on the right track to being able to tow the trailer you mentioned with your 2018 Toyota Highlander. Since you already have a hitch and a 4-way installed the next thing you need is the #ETBC7 that you mentioned. This kit comes everything you…

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Answer 9

For your 2018 Toyota Highlander with factory tow package I recommend the Tekonsha Prodigy P3 Trailer Brake Controller #90195. This is a proportional controller that will apply your trailer brakes at the same time and with the same amount of…

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Answer 10

The black wire on the #ETBC7 should be run to the battery. The 12V cigarette lighter is meant to be used for accessories. Running the wire to your battery ensures that you do not cause any damage to your vehicle wiring if something were to draw too…

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Answer 11

You can have a Toyota dealer run the VIN number to determine how your 2018 Toyota Highlander is equipped. As far as trailer wiring you can check under the dash for any sort of wiring converter. It may or may not be labeled. Or you can find where a…

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Answer 12

When hardwiring a brake controller to a vehicle and tapping into the stoplight circuit for the red wire of the brake controller you would not have to worry about this step damaging anything. This circuit is only used as a signal wire and…

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Installing 7-Way Trailer Connector on a 2018 Toyota Highlander Hybrid

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