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Problem with trailer brake controller

Discussion in 'Towing & Hauling' started by Bashman68, Feb 3, 2016.

  1. Feb 3, 2016 at 9:18 AM
    #1
    Bashman68

    Bashman68 [OP] New Member

    Joined:
    Jan 30, 2016
    Member:
    #2560
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    First Name:
    Chris
    Western PA
    Vehicle:
    2015 Blue Double Cab TRD
    TRD Dual exhaust,Steelcraft Stx300 running boards,Extang Trifecta Canvas Tonno Cover,Towing mirrors
    Last week I had a brake controller installed at a local shop and when I tried it the next day with my trailer I had no left turn signal at trailer and the power signal for brake setting will not increase from 0. The trailer worked fine with my 15 Tundra which has an aftermarket controller also. The running lights are working.
     
  2. Feb 3, 2016 at 12:43 PM
    #2
    jfrd30

    jfrd30 New Member

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    2013 TRD Tundra
    Sounds like an F-ed up install. First you need to isolate the problem. Go to the 7 pin at the bumper and check each of the pins for power. If you look at the covers to the 7 pin and the 4 pin connectors, you'll see the schematic.
    4 & 7 pin cover.jpg
    It tells you what each pin is for.
    Take a 12 volt tester or a multi-meter and check each circuit. To save time I usually turn on the headlights and the hazard flashers.....it keeps you from having to run back and forth. Then find someone with a foot and have them mash the brakes and check that circuit. If you have power to all the circuits, then the problem is with the trailer. If not you'll have to run back that circuit. My controllers brake setting won't change if the trailer isn't hooked up to the truck.
    Good Luck and God Speed!!!
     
    TruckLife900 likes this.
  3. Feb 3, 2016 at 4:03 PM
    #3
    Bashman68

    Bashman68 [OP] New Member

    Joined:
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    Messages:
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    Male
    First Name:
    Chris
    Western PA
    Vehicle:
    2015 Blue Double Cab TRD
    TRD Dual exhaust,Steelcraft Stx300 running boards,Extang Trifecta Canvas Tonno Cover,Towing mirrors
    Thanks for the help. I'll check it out tomorrow. I wasn't sure if there was a fuse or relay that needed installed. I'm pretty sure the trailer is fine. Only a year old with led lights and it works fine with my other truck.
     
    jfrd30 likes this.
  4. Feb 4, 2016 at 1:21 PM
    #4
    jfrd30

    jfrd30 New Member

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    2013 TRD Tundra
    Let us know what you find.
     
  5. Feb 6, 2016 at 1:59 PM
    #5
    Bashman68

    Bashman68 [OP] New Member

    Joined:
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    Messages:
    15
    Gender:
    Male
    First Name:
    Chris
    Western PA
    Vehicle:
    2015 Blue Double Cab TRD
    TRD Dual exhaust,Steelcraft Stx300 running boards,Extang Trifecta Canvas Tonno Cover,Towing mirrors
    It turned out to be a loose wire on the trailer. Thanks for your assistance.
     
    jfrd30 likes this.
  6. Feb 6, 2016 at 3:14 PM
    #6
    jfrd30

    jfrd30 New Member

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    First Name:
    Mike
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    2013 TRD Tundra
    Your very welcome! Glad it wasn't anything major.
     
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