How to Find Correct Brake Wire for a Brake Controller on a 2022 Subaru Outback Wagon

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Question:

I bought a 7 pin tow kit along with a red arc tow controller. I have watched your videos on the install on a car that is close to my year. I didnt want to ask the question on that video on you tube and figured Id reach out this way. I own the 2022 Subaru Outback Wilderness. I have everything installed except for the red wire coming out of the brake controller. I was wondering which wire Id need to tap into. The 2020 subaru outback has a brown one that it says in the video, but the wires are different in the 2022 outback wilderness. Thanks and looking forward to your reply to get this up and running.

asked by: Michael S

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Expert Reply:

Thanks for reaching out, Michael!

It looks like historically Subaru uses a brown wire (sometimes with another color stripe) for the cold side of the brake light switch, so it sounds like you've got a good start for your 2022 Subaru Outback Wagon.

With that being said, I'm not seeing anywhere where this has been confirmed for your 2022 model year so I recommend using a circuit tester like part # PTW2993 so you can make sure that wire only gets hot when the brake pedal is pressed. If this is the case then that's where you'll want to connect the red wire from your Redarc controller, like the Liberty # RED24FR. Otherwise you'll need to use the probe on the tester to figure out which wire is the one you need to connect to.

expert reply by: Jon G

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Answer 1

Hey Joseph. For your client to add a 7-way connector to their 2024 Subaru Outback Wilderness, they'll need our Universal Installation Kit for Trailer Brake Controller item #ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that…

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Answer 2

I do have an option for you Trevor but there is not a custom fit 7-Way harness available for the 2020 Subaru Outback Wagon. You will need to convert Tekonsha 4-Pole flat trailer connector part #118467 to a 7-way connector with part #ETBC7. The…

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Answer 3

Hey Jon, yes to be able to tow a trailer with brakes all you'll need is the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation #ETBC7L and the brake controller, the Tekonsha Prodigy RF Wireless Brake Controller #TK94FR that you're…

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Answer 4

Hey Katja, the Curt Echo Mobile brake controller part #C51180 would be your best option. This is a wireless brake controller and all it requires is a 7-way with the taillight functions and the 12 volt accessory circuit active and you'd be set. So…

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Answer 5

To convert your existing 4 pole trailer connector into a 7-way, and to install a brake controller you'll need our Brake Controller Installation Kit, part #ETBC7. The kit includes an adapter which will convert the existing 4 pole into a 7-way…

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Answer 6

Here's what I'd recommend. If you have an exposed portion of the hitch crossbar to work with, use the #18136 no drill bracket. This fastens to the hitch crossbar using an included pipe clamp. You'll also use the #PK12711U 7-way mounting…

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Answer 7

The Primus IQ #TK90160 doesn't have instructions that come with a wiring diagram, but we have a picture/diagram on our site that shows which wires are connected to which functions on your vehicle. I attached the diagram for you to view, the wires…

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Answer 8

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Answer 9

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 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

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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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 Correct Brake Wire for a Brake Controller on a 2022 Subaru Outback Wagon

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