Installing Trailer Brake Controller on 2015 Toyota Tacoma with Tow Package

Question

Question:

Im installing a Prodigy P2 Electronic Brake Control for my new trailer. My 2015 Toyota Tacoma has the towing package installed. Is there supposed to be an empty plug to plug my trailer brake control harness into or do I need to unplug an existing one? Thanks,

asked by: Dean W

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Expert Reply:

Yes, if your 2015 Toyota Tacoma came equipped with the factory 7-Way connector at the rear there will be an empty brake controller port behind the dash to which you can install your Tekonsha Prodigy P2 Brake Controller # 90885 using the Plug-In Adapter Harness # 3040-P.

On your Tacoma the port might be pretty well hidden behind other factory wires, as you can see in the install video I attached on an earlier model year.

expert reply by: Chris R

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Answer 1

On an 4 foot long section of E-track #EM19147 and 2 screws every 16 inches that is a total of 6 screws in the aluminum frame. This most likely will not get you near the capacity of the E-track. I recommend bolting through the aluminum frame so that…

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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

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 4

Both the Roadmaster and Blue Ox tow bars are great options. But if it was my decision to make I would go with the Blue Ox Avail part #BX7420 as we have found that the Blue Ox tow bars are a little easier to connect and disconnect from. Also this tow…

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Answer 5

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 6

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 7

To install a Redarc Tow Pro Liberty in your 2023 Toyota Tacoma Sport you will need the following parts: Redarc Tow-Pro Liberty Brake Controller item #RED24FR Plug-and-Play Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item #RED99FR…

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Answer 8

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 9

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 11

Sure, I can help with that. I can see why the fitment notes are confusing. For a 2012 Toyota Tundra with the factory tow package and factory 7 way connector, you'll want a brake controller that plugs into the factory brake controller port under…

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Answer 12

There is a wiring kit for a brake controller Preston but it's not going to be a plug and play one. The 2025 Toyota Tacoma does not have a plug in brake controller port. Toyota stopped putting them in after the 2023 model. For your Tacoma, I…

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Installing Trailer Brake Controller on 2015 Toyota Tacoma with Tow Package

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