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2018 Tundra with 4.6 engine trailer brake install

Discussion in 'Towing & Hauling' started by daemonjeep, May 16, 2018.

  1. Aug 30, 2020 at 3:38 PM
    #61
    AirSchatz

    AirSchatz New Member

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    Snipping the blue and black wires at the connect behind the passenger side kick panel is the only thing I have not done. I will try that and report back here so others can follow. Thank you, btw, yes its a 2018 Limited 5.7 iForce.
     
  2. Sep 2, 2020 at 6:41 PM
    #62
    AGia15

    AGia15 New Member

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    did you by chance go back and add the auto resetting circuit breaker? If so which one did you get?

    Also, does the break still show up on the dash screen behind the steering wheel?

    Lastly, any more issues on the install and how is the P3 working? Any updates?
     
  3. Sep 2, 2020 at 8:05 PM
    #63
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    If you want to address a post to someone, tag them, like this: @dwkarl. @dwkarl appears to no longer follow tundras.com. I tagged him twice in my post above, and he didn't respond. No activity since May 20.
     
  4. Sep 2, 2020 at 10:11 PM
    #64
    AGia15

    AGia15 New Member

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    Good deal. Thanks man. I appreciate the info. I rarely post on here. But have read good bit recently.
     
  5. Sep 3, 2020 at 6:15 AM
    #65
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    TRD Pro grille, 2018 LED Headlights, Undercover Flex bed cover, Neoprene seat covers, Bed/tailgate mats, Power tailgate lock, auto headlights, illuminated key switch
    Do a search on "IBC" or "integrated brake controller". There are a lot of threads on this topic, and you'll get a feel for the problems and solutions the community has experienced. Unfortunately, you'll probably have to read a LOT to find the answers you need, but I'm pretty sure your questions been covered.
     
  6. Sep 3, 2020 at 7:44 AM
    #66
    AGia15

    AGia15 New Member

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    Thanks for the info. I was referencing the answer I found above. But I am curious if the guy that posted the great info had more input after he successfully installed and provided as much detail as he did. I’ve been researching this for months and @dwkarl was the best I found so far for the 2018 IBC issues.
     
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  7. Sep 13, 2020 at 7:45 PM
    #67
    RoyBoy69

    RoyBoy69 New Member

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    I also have a 2019 Toyota Tundra sr5 4.6L do you have to install a diode between the controller and the brake light switch to keep the 12vdc from feeding back to the brake light switch when you use the manual control lever. I have a P2 controller I want to install.
     
  8. Sep 14, 2020 at 8:59 PM
    #68
    TundraTSS19

    TundraTSS19 New Member

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    San Antonio, TX
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    LED step bar light strips
    No
     
  9. Oct 12, 2020 at 11:45 AM
    #69
    beanders

    beanders New Member

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    Brake switch, like on the brake pedal linkage, or is it in the kick panel like the Black and Blue? I looked around the brake pedal linkage and there wasn't a tan wire on any of the harnesses. Thanks!
     
  10. Oct 12, 2020 at 2:29 PM
    #70
    JohnLakeman

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    What MY do you have? This thread is specifically for 2018+ Tundras with 4.6L. If your Tundra is a 2017 or earlier, the brake controller connector is behind the lower dash panel to the right of the steering column where the OEM IBC would be installed. Use a Tekonsha 3031-P adapter harness for plug-n-play installation of most aftermarket brake controllers. You don't have to worry about making any wiring connections except the ground if your truck is 2017 or earlier

    If you have a 2018 or later, find the switch on the brake pedal linkage. Toyota calls the wire color to the brake switch "BE" or beige. See the wiring diagrams in Post #7 of this thread.
     
  11. Oct 12, 2020 at 2:51 PM
    #71
    beanders

    beanders New Member

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    I have a 2018 SR with 4.6. I only see a beige wire on the "switch" thats on the parking brake. There is a big rubber boot over some wires that looks to be hooked to a "switch" on the brake pedal linkage, but I haven't been successful in pulling it back.
     
  12. Oct 12, 2020 at 6:42 PM
    #72
    beanders

    beanders New Member

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    I found the wire. Its in the flex loom bundle marked by the pink arrows in this picture. I had to use a splicing connector to connect it. Wow it was hard to get to, etc.PXL_20201012_220042149.jpg PXL_20201012_220051053.jpg
     
  13. Nov 3, 2020 at 12:01 PM
    #73
    Spotman

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    So far, Weather Tech Front mats and new FOB with auto start and key less entry.
    Will this work on my 2018?

    Curt Echo Wireless Trailer Brake Controller - 1 to 2 Axles - Proportional
    Item # C51180
     
  14. Nov 3, 2020 at 12:04 PM
    #74
    beanders

    beanders New Member

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    I don't know why it wouldn't. That is actually a clever solution.
     
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  15. Apr 3, 2021 at 9:25 AM
    #75
    HMS

    HMS New Member

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    Can anyone explain how to get the kick panel off to access this cluster.
     
  16. Apr 3, 2021 at 3:41 PM
    #76
    beanders

    beanders New Member

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  17. May 3, 2021 at 8:31 PM
    #77
    JoeBob1109

    JoeBob1109 New Member

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    I just did this install on a 2018 5.7L. When I turn the truck off the tekonsha led stays lit. I’m assuming that the 12+ black wire isn’t disconnected by the ignition. How can I wire it so that when the ignition is turned off the brake controller doesn’t stay on?
     
  18. May 4, 2021 at 6:54 AM
    #78
    JohnLakeman

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    That is how all P3 controllers behave normally...at least in Tundras. Toyota designed the controller harness that way.

    When you turn the ignition switch to OFF, the P3 will go to sleep mode (black screen) with negligible parasitic draw after 15 minutes. If you want the controller to go ON/OFF with the key, you are wanting an atypical installation.
     
    Last edited: May 4, 2021
  19. May 4, 2021 at 8:45 AM
    #79
    beanders

    beanders New Member

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    Yea, My Redarc brake controller always has power, it just turns off on its own until I push a button.
     
  20. May 4, 2021 at 12:23 PM
    #80
    JoeBob1109

    JoeBob1109 New Member

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    Good to know! Thanks for the reply.
     
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