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Thread: Anyone have schematics for an '88?

  1. #11
    Join Date
    Sep 2007
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    Hutto TX
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    i have 1991 gm wiring diagram book. But it doesn't have connector end view. If you can tell me what cavity from what plug i can search the book till it shows up.

    RWAL Diagram
    Last edited by r6z4o6; 01-24-2009 at 05:58 PM.
    1991 Silverado ECLB
    LM7-T56

  2. #12
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    Jul 2008
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    Sellersburg, IN
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    I think that will help a lot. Is there a diagram that shows all of the wires in the C100 plug?

  3. #13
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    Quote Originally Posted by TSL View Post
    I think that will help a lot. Is there a diagram that shows all of the wires in the C100 plug?
    NO!! I wish there was. That's the connector end view that it DOESN'T have. The book i have for 2001 has it, and i think i saw one on thirdgen that has c100 for a camaro, but its not the same as the truck. I can probably look through it and get all the wires and just post em up off the c100, like if you were under the hood looking at he firewall. I have to go to sams and make a volcano but after that i will see if i can get something together for ya.
    1991 Silverado ECLB
    LM7-T56

  4. #14
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    Thanks I appreciate the help.

  5. #15
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    Wichita,KS aka DOODAH
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    The purple wire coming from the drivers side connector should go to the starter.
    It's the crank signal.
    1990 SWB 2000 5.3l 4l60e
    It's in just tieing up the loose ends.

  6. #16
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    Wichita,KS aka DOODAH
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    The book that r6z406 has actually shows all of the wires in the c100 plug.
    You just have to look through the entire book to find all of them.
    1990 SWB 2000 5.3l 4l60e
    It's in just tieing up the loose ends.

  7. #17
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    Well i gotta go to Houston for some family stuff. I won't be able to look through the book till this weekend.
    1991 Silverado ECLB
    LM7-T56

  8. #18
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    Jul 2008
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    Quote Originally Posted by SWBLS12B View Post
    The purple wire coming from the drivers side connector should go to the starter.
    It's the crank signal.
    Its a smaller wire, maybe 18 ga.... it comes through the firewall on the passenger side. I believe it goes to the RWAL module and not through the c100 plug like I thought at first.

  9. #19
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    Quote Originally Posted by r6z4o6 View Post
    Well i gotta go to Houston for some family stuff. I won't be able to look through the book till this weekend.
    I think that diagram you posted should get me pretty close. If I can't figure any out I'll post specific wires so you don't waste a lot of time looking up wires I have figured out. Thanks again for the help.

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