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csijeep's avatar
csijeep
Explorer
Oct 21, 2014

2014 Toyota Tundra Trailer Wiring Harness

I hope I'm posting this in the correct forum. If not, feel free to move to the correct forum.

We recently purchased a 2014 Toyota Tundra Double Cab SR5 TRD that came with the factory towing package and the factory brake controller quick connect harness in the glove box. I have a Tekonsha Primus IQ brake controller that has four wires black, red, white and blue. The Toyota brake controller quick connect harness has five wires red, black/red, green, green/white and a brown wire.

I've looked all over the web trying to find a diagram showing what wire connects to what wire and I can't find anything. My first stop should have been here as I'm sure there is someone out there who can give me direction for what wire to connect to what wire.

Thanks in advance.

Ed
  • Ron3rd's avatar
    Ron3rd
    Explorer III
    Oct 21, 2014
    csijeep wrote:
    enblethen wrote:
    In the installation instructions, it shows the pin assignments that you need to connect the two harnesses together with.
    Wiring diagram


    I actually found exactly what I was looking for by continuing to search. I found it here: http://www.etrailer.com/question-32655.html. It's actually for a 2011 Tundra and the Prodigy P2, but it's the same for the 2014 Tundra and Primus IQ controller.

    I really appreciate your help.


    That link is correct; the Tekonshas all connect the same way regardless of model.
  • Ron3rd's avatar
    Ron3rd
    Explorer III
    Oct 21, 2014
    CS,
    You can do it either way, ie, hard wire it in with the Toyota supplied pigtail, or get the Tekonsha pigtail and it will be plug and play by plugging into the plug that's hidden behind the driver's side kick panel. That's how I did it on my '07 and yours should be the same. The Tekonsha pigtail is about $12.
  • csijeep's avatar
    csijeep
    Explorer
    Oct 21, 2014
    enblethen wrote:
    In the installation instructions, it shows the pin assignments that you need to connect the two harnesses together with.
    Wiring diagram


    I actually found exactly what I was looking for by continuing to search. I found it here: http://www.etrailer.com/question-32655.html. It's actually for a 2011 Tundra and the Prodigy P2, but it's the same for the 2014 Tundra and Primus IQ controller.

    I really appreciate your help.
  • csijeep's avatar
    csijeep
    Explorer
    Oct 21, 2014
    enblethen wrote:
    Is this what you are looking for?
    Wiring harness


    No, I already have the pigtail cable from the Tekonsha brake controller and the pig tail connector from Toyota. I just need to know what color of wires from each harness connect to each other as the colors don't match up.

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