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Electrical system guru's look in here

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BigCountryx, Mar 13, 2005.

  1. BigCountryx

    BigCountryx 1/2 ton status

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    Under my dash, by my fuse block, there is a plug with two wires. A Purple w/White stripe wire and an all White wire. The plug is plugged into another plug with no wires at all coming out of it. It just has a resistor or something similar used as a jumper and it's all taped up. What in the world is it. I've got no key in ignition buzzer or headlight buzzer functioning in my Blazer. Could this be some sort of fix for the buzzers or something? I can't see where it should be plugged in and the guy that I bought the truck from has no idea. Got me scratching my head!
     
  2. k51989

    k51989 Registered Member

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    ummm...plug it in?
     
  3. BigCountryx

    BigCountryx 1/2 ton status

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    I would if I could find something to plug it into. That's what I was hoping somebody could help me find. Ill try to get a pic of what I'm talking about. (my camera is on the fritz, so I am at it's mercy)
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    How big are the wires?

    I thought purple (no stripe IIRC though) and white were the neutral start wires, and what you describe is a way to bypass that.
     
  5. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    If it's any comfort.....I have exactly the same thing on my '91 :grin:
     
  6. mojo-jojo

    mojo-jojo 1/2 ton status

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    Not sure if this correct or not but I think it would have been plugged into the neutral saety switch on older model chevy's. At a certain point GM stopped using electrical safety switches and built detents in the top of steering columns to stop the rod between the key switch and the actual ignition switch at the bottom of the column. If you take the jumper out your truck should not start. If I'm wrong I'm sure someone will correct me.
     
  7. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    Interesting idea! If that were the case it could be an easy place for a bit more security, some sort of keyed switch maybe. (as long as it were hidden...every thing helps!)


    oops, sorry...hijack!:grin:
     
  8. BigCountryx

    BigCountryx 1/2 ton status

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    I unplugged it and the truck started fine. Guess the mstery continues.:confused:
     
  9. southernspeed

    southernspeed 1/2 ton status GMOTM Winner

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    hmmm:whistle: ...oh well!:grin:
     
  10. MarcS

    MarcS 1/2 ton status

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    Any voltage one the wires ??? Are one of them grounded ???

    What year truck, engine etc ???
     

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