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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: 75_chevy on January 15, 2014, 01:40:44 pm

Title: "what's that wire?"
Post by: 75_chevy on January 15, 2014, 01:40:44 pm: looks like a gray wire and a black wire coming down to the plastic connector. it looks like the wires go up to the gauge cluster?
any guesses?

also I've been doing some wiring behind the dash and it seems I've knocked out the blue high beam signal light, anybody know what wire that is? please don't just copy and paste the wiring diagram as a reply. I have a manual and I can't see it in there and can hardly read those in the first place. thank you
steven
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Title: Re: "what's that wire?"
Post by: Boone83K10 on January 15, 2014, 01:57:30 pm: can you get a better picture of the connector. that would help.

the high beam indicator is just a bulb socket that twists into the back of the instrument cluster. it get power from the printed circuit that runs along the back. you can see it in the second pic (the green/blue race track looking stuff)
Title: Re: "what's that wire?"
Post by: Captkaos on January 15, 2014, 01:59:02 pm: Without knowing where it is coming from there is no guessing other than every gray wiring in the diagrams.
The high beam light should be easy to find from the cluster, it is part of the cluster plug. If you knocked it loose, you probably broke it.
Title: Re: "what's that wire?"
Post by: 75_chevy on January 15, 2014, 02:30:09 pm: (http://img.tapatalk.com/d/14/01/16/be8eguby.jpg)(http://img.tapatalk.com/d/14/01/16/a9y8ezy9.jpg)

I just swapped all my cluster lights for bright white LEDs so I probably broke it doing that

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Title: Re: "what's that wire?"
Post by: 75_chevy on January 15, 2014, 02:30:46 pm: (http://img.tapatalk.com/d/14/01/16/8yguju9y.jpg)

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Title: Re: "what's that wire?"
Post by: Boone83K10 on January 15, 2014, 03:44:11 pm: looks like a power radio feed but, it would have a yellow wire to it. It almost looks like there are 3 "places to plug in" . You have the two prong female part and then to the left a place for something.

Do you have the original radio? does it work?
Title: Re: "what's that wire?"
Post by: 75_chevy on January 15, 2014, 03:53:34 pm: no when I bought the truck it already had the dash hacked up and an aftermarket CD player in it.
that's a good thought, it's not a big deal I'm just extremely curious. would a radio feed wire be coming down from the top of the gauge cluster?

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Title: Re: "what's that wire?"
Post by: Boone83K10 on January 16, 2014, 07:00:38 am: Yes, well it could be the speaker feed, if you had dash speakers. Gray inside the cab is usually power, along with orange. Black is ground. I just don't recognize that connector.
Title: Re: "what's that wire?"
Post by: 75_chevy on January 17, 2014, 12:39:28 am: yep Boone I think you nailed it because there is the hole in the dash for the speaker. thank you!

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Title: Re: "what's that wire?"
Post by: Linville33 on January 17, 2014, 01:08:32 pm: Gray is power in the cab? When I put my radio in the previous owner hacked away the connectors and I found the gray running to the radio area was the illumination wire for the stock radio. So when I would turn my headlights on it would pop the fuse for the radio or the dashlights

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Title: Re: "what's that wire?"
Post by: Linville33 on January 17, 2014, 01:09:04 pm: What would be the 12v accessory?

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