Parts Needed to Convert a 4-way into a 7-way on a 2013 Volkswagen Tiguan

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Question:

Hello! I am looking to convert my 4 way trailer wiring set-up to a 7 way. I wired my 2013 VW Tiguan with the Tekonsha 118675 harness a few years ago. I just recently bought a small fibreglass camper trailer that I am upgrading the axle to have electric brakes. I will need a conversion kit for the 4 way to the 7 way for my Tiguan and a brake controller only a lightweight trailer, single axle. I will also need a 7 way plug for the trailer wiring it originally had a 7 way plug still has the 7 way wiring but it was converted to a 4 way plug. Any advice or suggested parts would be super appreciated!

asked by: Ryan W

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Expert Reply:

We have just what you need. You can use the Universal Installation Kit for Trailer Brake Controller # ETBC7 to adapt your 4-way connector into a 7-way. You can use the No-Drill Mount Bracket # 18136 to attach the 7-way bracket included in the # ETBC7 to your hitch.

This would allow you to use a trailer brake controller like the Redarc Tow-Pro Liberty Brake Controller # RED24FR, which is going to have a sleek control knob instead of a big bulky controller. You will need the Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers # RED69FR for installation and can use the Universal Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob # 331-TPSI-001 to provide a more factory like appearance.

For the plug on your trailer you can use the 7-Way Round RV Style Trailer Connector # A7WCB or the 7-Way Molded Trailer Wire Connector # H20043 if you need some extra cord.

expert reply by: Scott S

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Answer 1

The RedArc Tow-Pro Elite #RED44FR is comparable in reliability and performance to the Tekonsha Prodigy P3 #90195. The difference is really in the design and features. One of the greatest aspects of the P3 is the LCD screen and presets. One of the…

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Answer 2

Assuming you have trailer brakes on your trailer, you will need a brake controller in order to operate them. If you do have brakes, I would recommend using them. Different states have different requirements based on weight so you will want to check…

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Answer 3

A dedicated brake switch circuit will be active at the third brake light of a vehicle as well as at the brake pedal switch. Or we have the universal stoplight switch kit part #RM-751000.

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Answer 4

As long as the 7-way connector on your 2021 Volkswagen Atlas has 12v power the Autowbrake Electric Brake Controller - Trailer Mount - 1 to 3 Axles - Proportional #3430001 you were looking at will work just fine and is a great option as it installs on…

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Answer 5

Installing brake controllers can be pretty involved depending on your vehicle and on Volkswagen Tiguan vehicles installation is a even more so. I am attaching a general brake control help article and a particular article for Volkswagen installs to…

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Answer 6

If you connect the trailer brake light circuit to the trailer brake circuit your brakes would lock up immediately since 12 volts is max braking voltage for trailer brakes. You'd need a brake controller that can vary voltage so that you can apply…

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Answer 7

There is no brake output circuit on a 4-Way to activate electric trailer brakes so you would have to install a 7-Way on the tow vehicle. To do this I recommend #ETBC7. With it you will plug in the 4-Way to get the lighting functions for the trailer…

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Answer 8

When installing a trailer brake controller like the excellent Tekonsha Prodigy P3 #90195 that you were looking at, the red wire from the controller needs to be connected to the cold side of the brake light switch. This is the wire behind the brake…

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Answer 9

For your application I actually recommend using the Roadmaster Universal Stop Light Switch Kit #RM-751000 to send a brake signal to the brake controller. I looked up the online version of the owner's manual for your 2022 Toyota Highlander but it…

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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

I would be happy to help you set up your 2022 Toyota Highlander to haul your new travel trailer. The wiring harness you currently have controls your trailer's lighting functions only. You do not need to rewire your Toyota you just need another…

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Answer 12

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Parts Needed to Convert a 4-way into a 7-way on a 2013 Volkswagen Tiguan

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