83 C10 Power Window & Lock issue

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Ls1Matt

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Sep 6, 2019
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Houston TX
First Name
Matt
Truck Year
1983
Truck Model
C10
Engine Size
305
Info: 83 C10 - American Auto Wire Harness - AAW PW & PL Harness and LMC relay kit ( no issue with LMC kit, just for info)

Problem: I have a black wire with single connector that I am confused about. AAW had to research and call me back and stated it was 12V IGN…… schematics I found show it to be a ground. (Makes sense since it’s black)

This is part of the body crossover harness, which is under the dash that connects the driver door to the passenger door in regards to the power windows, and locks. I have the factory relay with 2 connections which are accounted for and are not a problem. I figured out where the battery power (ORG/BLK) and ignition power (pink) plug into the fuse box with clips along with circuit breaker on pink, but at a loss for the black. It seems as if it loops back into the 4 pin.

Question: does anybody have a picture showing exactly where this goes on a factory truck? I blew mine apart eight years ago, and for the life of me cannot figure out where this thing plugged into.

Again the only schematic I found shows it going to ground bus bar, anyone have a pic or can I just cut the connector and put a ring terminal to ground?

Thanks!

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Snoots

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Jimmy Sierra
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Don't cut the connector. The Bus Bar Ground is just above and to the left of the Parking Brake.

They are the cause of a lot of grounding problems. Simply remove it, clean it and the area where it is fastened, smear a touch of anti-sieze grease on it and re-attach. You're good to go.
 

Ls1Matt

Junior Member
Joined
Sep 6, 2019
Posts
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Location
Houston TX
First Name
Matt
Truck Year
1983
Truck Model
C10
Engine Size
305
Thank you. Everything has been gutted so that bus bar doesn’t exist for now. (probably the reason I was so confused) as long as it is in fact a ground, I’ll figure out a secure place for it. Thanks again!!
 

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