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  1. #1
    Member
    Join Date
    Feb 2023
    Location
    Daphne, AL
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    96

    Have brake lights / reverse lights but no running light?

    I have the round style plug in. I have brake lights when I hit the brakes and reverse lights on trailer when I reverse but no running lights. Worked fine until today.

  2. Member
    Join Date
    Jul 2009
    Location
    Benton, KY
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    4,620
    #2
    Check trailer running light fuse, probably under the hood. If it's good, make sure you have power at the truck plug. If you do have power at the plug, probably a broke wire in the trailer circuit.

  3. Member
    Join Date
    Feb 2023
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    Daphne, AL
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    96
    #3
    Quote Originally Posted by mikeky View Post
    Check trailer running light fuse, probably under the hood. If it's good, make sure you have power at the truck plug. If you do have power at the plug, probably a broke wire in the trailer circuit.
    Blown fuse in truck panel.

  4. Member tcesni's Avatar
    Join Date
    Apr 2005
    Location
    Smith Mountain Lake, VA and a cottage in Ontario
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    11,524
    #4
    Quote Originally Posted by BamaBass99 View Post
    Blown fuse in truck panel.
    A blown fuse might indicate a bare wire touching somewhere on the trailer.

  5. Member
    Join Date
    Jul 2009
    Location
    Benton, KY
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    4,620
    #5
    Glad you found it, but as tcesni said you may have a bare wire.

  6. Member
    Join Date
    Apr 2012
    Location
    Insomnia, near Seaford Delaware
    Posts
    35,511
    #6
    The issue should be on the circuit or the wiring of the Brown wire on the trailer. If you have the brake lights that usually means you do not have a ground issue.