Finding Stoplight Circuit for Brake Controller Install in 2012 Volkswagen Touareg

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Question:

Hello, After watching the installation video using a 2012 VW Touareg, which is what I have from Etrailer regarding the Tekonsha Prodigy P3 brake controller BC I have a question regarding the output to the 7-pole plug. The video explained how to connect the BC using an after market VW housing unit and 4 wires to plug into the existing brake controller housing under the drivers side dash. I am able to get continuity for all four wires that end up forward of the passenger side rear tail light. From there I can connect product ETBC7 4-pole to 4/7-pole adapter to the wires prewired in the vehicle coming from the BC. I understand the blue wire is the electric brake output, the black wire is 12-Volt power and the white wire is ground. I am unsure where the red wire cold side, brake signal would tie into? I have seen some videos where the red wire is spliced into the wire directly above the brake pedal, but in my case it is within the 4-wire harness that leads to the back of the vehicle. Thank you

asked by: Peter S

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Expert Reply:

Finding the stoplight circuit in a 2012 Volkswagen Touareg is unlike other vehicles out there. You actually have to get a VW harness #1J0-972-782 and 2 wire/terminal assemblies #000-979-228 so that you can create the stoplight circuit source. If you check out the attached help article link I attached you can see the entire process outlined.

expert reply by: Jameson C

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Answer 1

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 2

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 3

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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Answer 4

You do have the option to utilize the air brakes on your 2023 Freightliner Cascadia to control electric trailer brakes using the Hayes Air Actuated Trailer Brake Controller, part #HA100400C. However, we mostly recommend just using an electric brake…

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Answer 5

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 6

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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Answer 7

Sure thing, I will go ahead and list out what you need for your 2023 Kia Sportage to add a 7-way for a brake controller so you can tow with the Curt Trailer Hitch Receiver #C94WR: - T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector…

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Answer 8

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 9

A factory 7-way trailer connector isn't all you need to power a trailer's electric brakes. You still need a brake controller. Some Ford F-150s are equipped with a factory integrated brake controller, which you may have. If your 2012 Ford…

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Answer 10

I do have a solution for your 2024 Kia Telluride that has the LED taillights that does allow it to have both a 4-way and 7-way plus install a brake controller but it is not with the #TK74CR which does not work for you based on the LED taillights.…

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Answer 11

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 12

Hey HPA, I would go with the Air Lift kit part #AL64VJ that fits your 2019 Toyota RAV4 based on what you described and your needs. This gives you adjustable support that you can tailor as needed so that you get the exact amount of support you need…

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Finding Stoplight Circuit for Brake Controller Install in 2012 Volkswagen Touareg

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