Has anyone had a short on Fuse 20 behind the dash?

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  • JRHemmen
    Advanced Member
    • Jul 2018
    • 193

    #1

    Has anyone had a short on Fuse 20 behind the dash?

    I'm trying to figure out what the problem is that is causing my blower motor to not turn on. When I bought the car, it was working, and it blew the fuse on my way home when I stuck the radio wiring in the dash to get it out of the way (the radio was missing). I don't think the blower motor would have seized at this time, as that's quite the coincidence. I have tested the leads on the fan switch and the correct resistance is coming across them, but I haven't been able to test voltage, as the fuse blows about a second or two after I turn the fan switch to anything other than off.

    I haven't seen any obviously exposed wires back there (I had the dash pulled), so does anyone have any idea where I should be looking? Obviously, I shorted something when I stuffed the clump of wires in there but I don't even know where to look.

    I have the electrical troubleshooting manual and the Bentley manual as well, but I'm just looking for any kind of guidance.
  • AndrewBird
    The Mad Scientist
    • Oct 2003
    • 11897

    #2
    Do your power windows work? There is a relay called the unloader relay that disconnects power to high-draw devices when the starter is cranking over. Perhaps something is bad with this relay.

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    • JRHemmen
      Advanced Member
      • Jul 2018
      • 193

      #3
      Originally posted by AndrewBird
      Do your power windows work? There is a relay called the unloader relay that disconnects power to high-draw devices when the starter is cranking over. Perhaps something is bad with this relay.
      They do, and I've never felt them get hot or anything like that.

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      • JRHemmen
        Advanced Member
        • Jul 2018
        • 193

        #4
        Turns out my blower motor coincidentally blew right when I stuffed the wires behind the dash, I pulled it out and had no more blown fuse

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