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77 wiring diagram...

Discussion in 'The Garage' started by ryoken, Oct 15, 2006.

  1. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Anyone have a diagram on file for the underdash on a 77? or close to that? maybe pre 80...

    I have the factory one for my 87 which has been a godsend, but I'm incorporating some 77 parts in my build... Mainly interested in the column turn/hazard plug at the base of the column and how it ties in and feeds thru the junction/fuse block, hazard/turn flasher, etc. Consists of 10 wires.. Horn is black, etc...

    [​IMG]

    Ignition switch plug to fuse panel would be handy too, but not as needed.. I'm trying to avoid a couple hrs dorking around with a meter and continuity tests...

    As always any help appreciated... :D
     
  2. dremu

    dremu Officious Thread Derailer Premium Member

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  3. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Actually, yeah, that does help...

    Muchos Gracias...
     
  4. diesel4me

    diesel4me 1 ton status Premium Member

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    I have one...

    Turn signal switch

    horn = black
    left front lamp = light blue
    rt front lamp = dark blue
    hazard warnings = brown
    flasher = purple
    left rear lamp = yellow
    right rear lamp = dark green
    stoplight switch = white

    My diagram shows only 8 wires! (?)...sorry,I have no means of posting a picture of it..probably couldn't read it if I did-I had to use a magnifying glass just to read the color codes..:doah:

    Ignition switch has 8 wires too,
    orange,
    purple/white
    brown/white(gauges only)
    dark green (not used with gauges)
    pink
    red(2)
    brown
    tan/white


    if you need more info let me know--not sure if I can read the printing on the ignition switch section of my wiring diagram,but I'll try to help if I can...:crazy:
     
  5. ryoken

    ryoken Puppy Fabricator Premium Member GMOTM Winner

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    Awesome Bob, that just confirmed what I had worked out....

    Those last 2 where a pink and black seperate from the other 8, they ran to some tabs that did nothing on the t/signal, so I'm not worried about em...

    Thanks again...
     

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