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Thread: HELP – Fiero wiring!!!!!!!!

  1. #1
    Senior Member MacGyver's Avatar
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    HELP – Fiero wiring!!!!!!!!

    HELP – Fiero wiring!!!!!!!!

    Can you guys help me on this? I have a few plugs on the driver’s side dash and I don’t know what they are for. Can anyone help?
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  2. #2
    Senior Member MacGyver's Avatar
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    And this................
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  3. #3
    Senior Member MacGyver's Avatar
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    and this little gem
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  4. #4
    Senior Member MacGyver's Avatar
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    This I think is the left speaker - correct?
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  5. #5
    Senior Member MacGyver's Avatar
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    While I'm asking. What the heck are these things for on the passenger side.
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  6. #6
    Senior Member MacGyver's Avatar
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    and this????????????

    I'm assuming the flasher is for the emergency lights
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    Last edited by MacGyver; 07-13-2013 at 09:03 PM.

  7. #7
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    The first one looks like... Maybe OBDII?
    I can't tell what the second and third are,
    but the fourth should be a speaker wire, yes.
    The next thing looks like a transformer, but there's usually no AC power in cars, so I guess that won't be it.
    The last thing, I have no idea.

  8. #8
    Senior Member Jbrown's Avatar
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    1. plugs cluster for speedo. plugs in bottom of I/P
    2 c200 junction
    3 c305
    pin A - black - connects seat belt switch to chime unit;
    pin B - purple - connects parking brake switch to chime unit (all cars) and to trunk release relay (manual cars)
    pin C - light blue - connects high level stop light to brake pedal switch
    pin D - black - connects high level stop light to ground
    4 power/illumination to radio not speaker wiring
    5 power lock relay
    6 flasher and chime module

    hope that helps , had to check into the c305 was not to sure about it
    Last edited by Jbrown; 07-14-2013 at 04:36 AM.
    1987 Fiero GT 3800sc
    1985 Fiero GT Northstar
    1985 Fiero GT 3800

  9. #9
    Senior Member MacGyver's Avatar
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    Quote Originally Posted by Jbrown View Post
    1. plugs cluster for speedo. plugs in bottom of I/P
    2 c200 junction
    3 c305
    pin A - black - connects seat belt switch to chime unit;
    pin B - purple - connects parking brake switch to chime unit (all cars) and to trunk release relay (manual cars)
    pin C - light blue - connects high level stop light to brake pedal switch
    pin D - black - connects high level stop light to ground
    4 power/illumination to radio not speaker wiring
    5 power lock relay
    6 flasher and chime module

    hope that helps , had to check into the c305 was not to sure about it
    Thank you very much. This helps a lot. I wanted to start sorting all these wires out before I can even think about putting the dash in place. Would you happen to know where the c200 junction attaches to?
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  10. #10
    Senior Member Jbrown's Avatar
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    up high in the kick panel , about level with the steering brace
    Last edited by Jbrown; 07-14-2013 at 03:03 PM.
    1987 Fiero GT 3800sc
    1985 Fiero GT Northstar
    1985 Fiero GT 3800

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