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coryjohn78, Matman
Total Likes: 4
Original Post (Thread Starter)
78 G10 printed circuit gauge #772772 03/13/2021 10:57 PM
by coryjohn78
Hello, Im currently rewiring my 78 G10 chevy. The previous owner had aftermarket gauges installed (poorly) Im installing a factory gauge cluster. Curious to know if anyone out there has the schematics for the 16 pin terminal that connects into the gauge cluster. Or if anyone knows of a way to decode the circuit board to get the correct terminal location. Thanks much
Liked Replies
Re: 78 G10 printed circuit gauge #773202 Mar 20th a 02:36 AM
by vaNsquared
I have the same cluster on my '80.
I did a quick trace of the circuits from the pin-out for the connector on the back of the cluster then made this messy attempt to label them. Some of the labels are incomplete since I was just trying track down lighting issues. I haven't double checked this so proceed with caution but maybe it will help
[Linked Image from]

I used a pencil to keep my eye on the circuit and followed them from beginning to end, then scrawled what I found on the paper
2 members like this
Re: 78 G10 printed circuit gauge #773972 Apr 1st a 06:48 PM
by vaNsquared
No problem, anytime!

Yes, if you're looking the connector socket from the back of the cluster like you have in your photo, and numbering them left to right, top to bottom smile

I can probably explain better with a photo or two haha.
It's the straightened light blue wire.
[Linked Image from]
[Linked Image from]
This is out of an '81 Vandura with the same cluster so the colors should be the same
1 member likes this

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