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79' Vette wiring question.

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Old 12-25-2018, 09:16 AM
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TinCanSailor
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Default 79' Vette wiring question.
Merry Christmas Everyone.

I am hoping for Christmas someone call tell me what these plugs go to. This is a 1979 and are located under the drivers side dash. I've been scouring the wiring diagram to no avail.


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Old 12-25-2018, 10:24 AM
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'75
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I think the 2nd pic is for the cruise control.
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Old 12-25-2018, 10:25 AM
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Originally Posted by TinCanSailor
Merry Christmas Everyone.

I am hoping for Christmas someone call tell me what these plugs go to. This is a 1979 and are located under the drivers side dash. I've been scouring the wiring diagram to no avail.


Possible back up light connector Blue/Grn the other 3 pin maybe alarm?
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Old 12-25-2018, 09:58 PM
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Originally Posted by '75
I think the 2nd pic is for the cruise control.
Thanks for the tip. I'll take a look at the diagram and the car tomorrow.
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Old 12-25-2018, 09:59 PM
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Originally Posted by henrikse
Possible back up light connector Blue/Grn the other 3 pin maybe alarm?
Thank you! I'll run these tips to ground tomorrow, pardon the pun.
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Old 12-26-2018, 12:42 PM
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megan.andrews
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Anyone here have a 79 wiring diagram with a/c?
when I turn a/c on no power goes to the pressure switch. Is it problem at switch?

please share with me your idea.
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Old 12-26-2018, 01:09 PM
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Default Free diagrams
Originally Posted by megan.andrews
Anyone here have a 79 wiring diagram with a/c?
when I turn a/c on no power goes to the pressure switch. Is it problem at switch?

please share with me your idea.
Check this link, papawana has been providing C3 diagrams for years.
https://www.corvetteforum.com/forums...or-anyone.html
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Old 12-26-2018, 01:47 PM
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I'll try sending PM to you as diagram to larger for reply If you do not get PM me with email and I will send
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Old 12-30-2018, 01:02 PM
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John Vance
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Default Where??
i have the same plug. Blue with two green wires. No idea where or what it goes to. Looked for ever can’t find anything. If you get the answer contact me. Thanks
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