How To Find Stop Light Switch Wire On 2019 Toyota Highlander for Trailer Brake Controller

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Question:

What color is the brake switch wire that you need to hook into for a brake control install, 2019 toyota highlander

asked by: Jackie

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Expert Reply:

The stop light switch circuit on a 2019 Toyota Highlander which will be needed to install a brake controller like the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 can be found by testing the bundle of wires attached to the brake pedal. The one you're looking for should only have power while the pedal is depressed. We don't have access to wire color info. Please note, you will also need the Pigtail Wiring Harness with Diode for Tekonsha and Draw-Tite Brake Controllers part # 7865 for this vehicle.

If you don't want to mess with finding the stop light switch circuit you can always go with the Curt Echo Mobile Brake Controller part # C51180.

expert reply by: Conner L

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Answer 1

Tekonsha, one of our brake controller resources, has told us that a diode like #RM-690 is needed on the 2018 Higlander brake light circuit to prevent the controller from backfeeding onto the vehicle wiring. The side labelled "in" goes to…

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Answer 2

The wiring harness for your taillights located in the rear hatch is ran at the top of the vehicle under the headliner. Therefore, the easiest way to access the reverse light circuit would involve tapping into the wire loom at the top of the hatch…

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Answer 3

When securing things down I tend to think "the more the merrier" so I personally would probably put at least 2 of the 2-1/4" Long Standard Torx Trailer Floor and Wall Liner Screw #TFX225 per board per crossbeam especially if the plan…

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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

An auxiliary transmission cooler isn't a necessity to tow with your 2019 Toyota Highlander, but it's absolutely a good idea to add one (your Highlander with a 3.5L V6 already has one so this would be an additional cooler), with the best…

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Answer 6

I spoke with my contact at Curt regarding the Curt TruTrack Weight Distribution System #C17499 that you are installing on your trailer. He said that you can install the support brackets 6 to 6-1/2 inches from the end of the spring bar without issue.…

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Answer 7

Hey Pete, The Redarc Tow-Pro elite is compatible with your 2022 Toyota Highlander XLE, it's just a bit overkill for your vehicle so that's likely why it's not listed. If you're not running a 24v system or doing off-roading then the…

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Answer 8

The red wire on a brake controller signals the controller that you are stepping on the brake pedal, so it has to be connected. It does not operate the brake lights on the trailer. It attaches to the cold side of the brake switch. The brake switch is…

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Answer 9

If you had a vehicle that needed a diode installed when installing a brake controller you'd need to install the diode like part #RM-690 on the red wire of the brake controller. This prevents the brake controller from back feeding onto the vehicle…

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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

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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How To Find Stop Light Switch Wire On 2019 Toyota Highlander for Trailer Brake Controller

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