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Tail light wiring diagram?

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Old 02-11-2008, 06:24 PM   #1
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Tail light wiring diagram?

Just got the truck home last night.
1983 GMC S15 High Sierra

Now, with the lights on I have no tail lights. When I turn on a turn signal (either direction) they both blink.

When I picked up the truck, none of the lights worked at all. Today I went to the junkyard and grabbed a male and female connector that mounts like right onto the rear of the bumper and wired it back in. There was a hacked job of wiring done to wire in trailer lights.

Now, does anyone, have a wiring diagram that can help me out?
Old 02-11-2008, 07:14 PM   #2
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Re: Tail light wiring diagram?

BTW: For some reason, I went out and with the blinkers on the tail lights work and the driver brake light actually works.
Old 02-13-2008, 12:55 AM   #3
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Re: Tail light wiring diagram?

bump, need some help please guys.
Old 02-13-2008, 09:04 PM   #4
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Re: Tail light wiring diagram?

starting at the tail light harness coming from the truck, brown wire is for tail lights, black is ground, dark green is right turn and yellow is left turn, the turn signal wires are also the brake light wires. that sounds wierd but if you hit the brakes and turn one of the signals on the actual brake light will blink. hope this helps you.
Old 02-22-2008, 02:25 PM   #5
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Re: Tail light wiring diagram?

Quote: Originally Posted by laydout97
starting at the tail light harness coming from the truck, brown wire is for tail lights, black is ground, dark green is right turn and yellow is left turn, the turn signal wires are also the brake light wires. that sounds wierd but if you hit the brakes and turn one of the signals on the actual brake light will blink. hope this helps you.
Thanks, this helped me fix a problem.
Old 03-11-2008, 04:04 AM   #6
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Re: Tail light wiring diagram?

I still can't figure anything out, I went by the haynes manual and what people have been telling me and it's the same thing...
Old 06-18-2013, 06:25 PM   #7
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Re: Tail light wiring diagram?

Quote: Originally Posted by laydout97
starting at the tail light harness coming from the truck, brown wire is for tail lights, black is ground, dark green is right turn and yellow is left turn, the turn signal wires are also the brake light wires. that sounds wierd but if you hit the brakes and turn one of the signals on the actual brake light will blink. hope this helps you.
What's the blue wire
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