PC circuit board wire connector diagram

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r85c10

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Mar 21, 2023
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Location
California
First Name
Richard
Truck Year
1985
Truck Model
C10
Engine Size
5.0
New to this group. I have a 85 c10 lwb with dual fuel tanks. The three gauges, volt, oil & water temp were not working when I got it running. I replaced those gauges with mechanical gauges. The PCB was shorted in several areas. So I rebuilt the cluster & rewired it. Now to my problem, I have identified all wires to the connector except two. These two are #1 two pink wires going into pin #18. One of those comes from the switch valve. The other one jumpers to pin #7. I want to use the original fuel gauge. One other question about the fuel gauge. Is the post on the back under the E power in, the other post to the switching valve & the one at the bottom goes to ground? #2 is pin #17 has 2 brown w white tracer. Where do those wires go. Thank you for any help or advice.
 

jrico

Junior Member
Joined
Apr 7, 2023
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8
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Location
Oklahoma
First Name
James
Truck Year
1986
Truck Model
C10
Engine Size
305
I was in here looking for information on adapting / not butchering up wire harness to run after market gauges. What did you wind up doing in your scenario?
 

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