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Thread: 1989 MGM headlight switch wiring diagram

  1. #1
    Member Not_your_grandpas_marquis's Avatar
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    Default 1989 MGM headlight switch wiring diagram

    So I had to do a heater core replacement and in the midsts of unplugging everything for the dash removal, the headlight switch GRENADED from being old when I went tried to unplug it.
    Now I'm left with a bunch of wires and have no clue where they go for the switch so I can repin them to the new connector since the new connector doesn't have the same wire colors.
    Can't move forward since I need the plug done before I slap the dash back together.

  2. #2
    Stow It! GM_Guy's Avatar
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    Default

    If you do not have auto headlights, you'll have less wires.
    and if you havn't discovered it yet, you can depin the new connector and insert the original wires into new block. Just inspect the parking/running/dash light connector closely, thats the one that usually melts down and corrodes.
    Attached Thumbnails Attached Thumbnails cvgm 1989 headlight connector1.jpg  
    Last edited by GM_Guy; 09-12-2021 at 11:11 AM.

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