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yay something new to fix!!!

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by 89suburban350, May 18, 2007.

  1. 89suburban350

    89suburban350 Rockstar 100 Posts

    ok so i was getting done installing my head unit and all of a sudden my overhead lights were'nt working when i tried it out and the HU was not turning on and the Horn is not working. so i think a fuse blew "im hoping" what does everybody think?
  2. Cableguy

    Cableguy Epic Member 5+ Years ROTM Winner 1000 Posts


    Most definitely! That year I think the horn, interior lights and cigarette lighter are on same curcuit.
  3. 89suburban350

    89suburban350 Rockstar 100 Posts

    does anyone have a fuse diagram? and cableguy thx alot that is just the news i wanted to hear
  4. Cableguy

    Cableguy Epic Member 5+ Years ROTM Winner 1000 Posts

    I think its 20amp fuse under dash, should be marked CTSY. I'm drawing from memory here.
    (Courtesy Accessory)
    Last edited: May 18, 2007
  5. Crawdaddy

    Crawdaddy Epic Member Staff Member 5+ Years 1000 Posts Platinum Contributor

    It's a 20 amp fuse labelled Horn/DM if I'm not mistaken. I blow that fuse all the time because I have a short or something with a cig lighter. every few times that I go to plug my radar detector into it, it blows the fuse, then the cig lighter acts weird. When the overhead lights should be on, the cig lighter has no power, but as soon as the overhead lights are supposed to go out, the lighter comes back on. Weird quirk that I haven't gotten around to resolving with a new cig lighter socket and a relay to pull from the battery directly or something like that.

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