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trailer brake problem

Discussion in 'Towing' started by taco1985, Apr 4, 2011.

  1. taco1985

    taco1985 [OP] Member

    Joined:
    Apr 4, 2011
    Member:
    #54336
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    First Name:
    Matt
    North Arkansas
    Vehicle:
    2008 Tacoma Double Cab
    Viper Alarm
    I posted this in technical help before I saw this group. I have a 2008 tacoma double cab. I am installing trailer brakes on my truck and bought the harness from the toyota dealer. I thought it would be as simple as plugging into the plug-in port by the driver kick panel and hooking up the brake controller module. Problem is I don't have power to the plug-in port. I tried putting fuses in the slots labeled "towing" and "trailer lights". I also tried putting in a circuit breaker in the slot for a breaker labeled "trailer lights". I never got power to the plug-in port. Any ideas? I called the toyota dealer but didn't get an answer.
     
  2. Jerry Bear

    Jerry Bear Well-Known Member

    Joined:
    Feb 23, 2011
    Member:
    #51743
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    144
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    Male
    First Name:
    Jerry
    Mesquite, Texas
    Vehicle:
    2010 Access Cab
    tint, topper, receiver hitch, trailer wiring, topper lighting, cruise control, intermittent wipers, backup camera, auto-dim mirror
    You need to put a 30 Amp fuse in the TOWING BRK slot in the fusebox under the hood. That's all you need to do for the brake controller.

    The other towing fuse and relay sockets are for the OEM trailer light wiring, which you must not have, or they would already be loaded.
     
  3. taco1985

    taco1985 [OP] Member

    Joined:
    Apr 4, 2011
    Member:
    #54336
    Messages:
    8
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    Male
    First Name:
    Matt
    North Arkansas
    Vehicle:
    2008 Tacoma Double Cab
    Viper Alarm

    I did this without any result. I noticed on another thread's sticky that I may not have the tow packaged equipped truck. According to that poster the non equipped trucks would have come with the plug in harness above the kick panel also. I think this is stupid on Toyota's part if you have to completly hard wire everything anyway.
     
  4. Jerry Bear

    Jerry Bear Well-Known Member

    Joined:
    Feb 23, 2011
    Member:
    #51743
    Messages:
    144
    Gender:
    Male
    First Name:
    Jerry
    Mesquite, Texas
    Vehicle:
    2010 Access Cab
    tint, topper, receiver hitch, trailer wiring, topper lighting, cruise control, intermittent wipers, backup camera, auto-dim mirror
    I believe that you are right. They may not have fully wired the Towing Brake Converter plug since your truck doesn't have the towing package.

    These are the pin numbers, wire colors, and uses for the Towing Brake Converter plug on a 2010:
    1. Blue, Brake output to trailer
    2. Black, Unswitched +12 Volts
    3. White/Black, Ground
    4. Blue, Brake input from truck
    5. Green, Taillight input from truck

    See what wires are there, and if they have the right signal on them.

    Let us know what wires/signals are missing and we may be able to tell you the best place to tap into them.

    What do you have at the rear of the truck for the trailer to plug into?

    Sorry that it didn't work.:(
     
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