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Problems With Integrated Brake Controller?

Discussion in '2.5 Gen Tundras (2014-2021)' started by Bistrostyle, Nov 14, 2018.

  1. Sep 18, 2019 at 7:53 PM
    #31
    JimboSlice413

    JimboSlice413 Super Nice Guy

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    I never had the disconnect issue but I did raise hell about the brake controller not braking the trailer. They did some update to it and it worked like it should after that.
     
  2. Sep 19, 2019 at 4:56 AM
    #32
    Punkinhead

    Punkinhead New Member

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    I had the disconnect error on my 2019 and the TSB reflash seems to have solved it. I towed about 1200 miles a couple weeks ago without a disconnect and the brakes also seem stronger. Before I had my gain set at 10 and the brakes didn't seem to help much. Now I have the gaina 5 and I can feel the trailer brakes working.
     
  3. Sep 22, 2019 at 11:48 AM
    #33
    Leoromero15

    Leoromero15 New Member

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    Hey guys, I’m having problems with my brake controller but not with it saying trailer disconnected, mine shows the trailer light on but the brakes don’t work and when you try to adjust the brake gain it says trailer brake control off. It’s a 2019
     
  4. Sep 22, 2019 at 7:17 PM
    #34
    MaxThurst27

    MaxThurst27 New Member

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  5. Sep 22, 2019 at 7:33 PM
    #35
    fundratss

    fundratss Send it!

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    No problems with mine at all. Set the trailer brake and gain and it works as it should. I can feel the trailer grab but it’s not too hard unless I have the gain all the way up. Been towing since 2016 with no concerns yet. I have not had an update for it ever. I just set the ibc to whatever the setting is for output when using the trucks brakes. Tested using dvom and tested using trailer emulator to confirm and then verified on the trailer brakes were active while braking. After that set the gain and never have looked back
     
    TTund16 and Cidertom like this.
  6. Mar 10, 2020 at 10:44 AM
    #36
    Ptm1diver

    Ptm1diver New Member

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    I’m getting the error message on my 2016 1794 crewmax edition and I’ve never hooked up a trailer. It has about 8600 miles. Dealer says they never heard of the problem and it’s out of warranty so I’m on the hook for all diagnostic and repair costs.
     
  7. Mar 10, 2020 at 10:56 AM
    #37
    johnxmccoy

    johnxmccoy New Member

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    Just add an aftermarket one.
    Cheaper and will be better.
     
  8. Mar 10, 2020 at 11:55 AM
    #38
    frichco228

    frichco228 Valued Member

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    Just did a camping trip with weekend, 2016 and used the factory controller...No error message, saw the camper- trailer brakes worked fine. Turn signals did not. Running lights and brake lights worked ok.

    So...not real sure what to check on that. Everything works properly when I hook the camper up to the 4runner with P3 controller.
     
  9. Jun 26, 2020 at 6:40 AM
    #39
    lewisdirk4x4

    lewisdirk4x4 New Member

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  10. Jun 26, 2020 at 6:43 AM
    #40
    lewisdirk4x4

    lewisdirk4x4 New Member

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    same here the dealer said they had no answer for why it wasn’t working properly said it was my trailer
     
  11. Jun 26, 2020 at 6:51 AM
    #41
    lewisdirk4x4

    lewisdirk4x4 New Member

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  12. Jul 4, 2020 at 10:29 PM
    #42
    fundratss

    fundratss Send it!

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    Toytec 2.5” Coilover boss suspension 3/1 lift w/camburg uca’s Morimoto xb headlights Morimoto fog Rough country grill 2 RC blacked light bars Volant air intake system Rear air bags (for towing) I’m sure there’s more but I’m lazy
    Update here. Still yet to have any problems with mine. Lights all work. Car haulers brakes work. Towed a camper and the trailer brakes worked as well. Only thing I have adjusted so far was the gain to match my load.

    if your lights work on a different car check the fuses for the lights on the truck. Or get a trailer emulator to test the pins at the connection.
     
  13. Jul 5, 2020 at 1:23 AM
    #43
    TTund16

    TTund16 New Member

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    There is a TSB to fix the IBC.
    search the site.
     
  14. Jul 5, 2020 at 1:26 AM
    #44
    TTund16

    TTund16 New Member

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    Where did you get the trailer emulator?
     
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