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Mother of all spreadsheets - tons of GM PCM pinouts

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Old 10-09-2019, 12:11 PM
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Wink Mother of all spreadsheets - tons of GM PCM pinouts

I have been bombarded frequently asking for my standalone harness spreadsheet via PM and emails. So, I decided to upload/attach it for anyone to have access/use. Yes, I know its not perfect but I will update it as I have time. The tabs along the bottom that say 'smaller" only show the wires necessary for a standalone harness. For now, its somewhat organized as I have been revising it for years. Lastly, I plan to update it for the new Gen5 stuff as I have time.

All I ask is if you have suggestions/corrections, please PM me as I hope this post doesn't become a cluster of hard to navigate/find info.
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Old 03-12-2024, 06:05 AM
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Originally Posted by aknovaman
I have been bombarded frequently asking for my standalone harness spreadsheet via PM and emails. So, I decided to upload/attach it for anyone to have access/use. Yes, I know its not perfect but I will update it as I have time. The tabs along the bottom that say 'smaller" only show the wires necessary for a standalone harness. For now, its somewhat organized as I have been revising it for years. Lastly, I plan to update it for the new Gen5 stuff as I have time.

All I ask is if you have suggestions/corrections, please PM me as I hope this post doesn't become a cluster of hard to navigate/find info.
Hi, thanks for the answer... you did an amazing job putting together so much information. thanks.
Well, I didn't see any information about an Envoy, mine is a 2006 Envoy Denali. Will it be the same as the 2005 GTO?
Old 03-12-2024, 11:36 AM
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99% of e40 are the same. The sheet lists the bare minimum fir standalone configuration. There is also a tab labeled relay to get you started.
sheet us not perfect as there were revisions as the years go by but its close.
Old 03-26-2024, 08:57 PM
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I have not even started to dig into this one, but thank you for compiling this!
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