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  1. #1
    Cadet
    Join Date
    Oct 2008
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    Default running lights on trailer wont work

    my brake lights and blinkers work but no running lights. same thing on both of my trailers which tells me its the truck. i have a chevy 2500hd with a 7 or 8 pin wiring harness. i use an adaptor for one trailer wich has your regular 4 prong harness. dont know where to start. thanks for any help

  2. #2
    Lieutenant Junior Grade ne7800's Avatar
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    PELLSTON, MICHIGAN
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    Default Re: running lights on trailer wont work

    Get a test light check the plug on the back of the truck, if no power there open up the harness and start working your way forward till you do find power

  3. #3
    Cadet
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    Oct 2008
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    Lightbulb Re: running lights on trailer wont work

    nevermind, it was just a fuse. thanks . dont know why i didnt check that first.

  4. #4
    Lieutenant Junior Grade ne7800's Avatar
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    Default Re: running lights on trailer wont work

    Quote Originally Posted by jstill View Post
    nevermind, it was just a fuse. thanks . dont know why i didnt check that first.
    LMAO i was going to say fuse but i thought "nah if he is asking here he has already checked that" glad it was somthing simple

  5. #5

    Default Re: running lights on trailer wont work

    i have been struggling with the same problem except with a 08 gmc pickup. was it a truck fuse that blew?
    1999 Glastron SX 195
    Volvo Penta 4.3L V6

  6. #6
    Honorary Moderator Emeritus tashasdaddy's Avatar
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    Default Re: running lights on trailer wont work

    that is what has fuses in it. trailers do not have fuses.
    FLORIDA GATORS
    TEBOW Country



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