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Wires coming off the back of the turn signal bulb housing?

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Wires coming off the back of the turn signal bulb housing?

Posted: 3/16/25 4:07pmMessage 1 of 4
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Englewood, TN - USA
Joined: 2/26/2025
Posts: 8
Vette(s): 1978 Silver Anniversary

I wondering as to what each wire is coming off the back of the bulb housing for the front turn signals? There is blue, brown, and black on the drivers side and light blue, brown, and black on the passenger side. I know black is ground but which of the other two is turn signal and which is running light? I want to hook my halos on my head lights up to it. I have a 1978 silver anniversary. 

 

Thank you, Chris.

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Re: Wires coming off the back of the turn signal bulb housing?

Posted: 3/16/25 9:22pmMessage 2 of 4
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22714
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Black is ground, brown is runnin/parking lights, blues are turn sigs. 👍

Joel Adams
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Re: Wires coming off the back of the turn signal bulb housing?

Posted: 3/17/25 5:35amMessage 3 of 4
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Englewood, TN - USA
Joined: 2/26/2025
Posts: 8
Vette(s): 1978 Silver Anniversary

Awesome and thank you! Have a great day.

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Re: Wires coming off the back of the turn signal bulb housing?

Posted: 3/18/25 4:56amMessage 4 of 4
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Loir en Vallee SARTHE, France
Joined: 8/21/2002
Posts: 155
Vette(s): 1978 L48 Auto. Red with Oyster Leather interior. Owned since 1990.

Probably a good idea to get yourself a copy of the Electrical Troubleshooting Manual, it has all sorts of interesting info in there, plus nice clear wiring diagrams.

I picked up my copy about 25 years ago from Ebay and there is still usually a choice of a few in various levels of condition.

Stephen J Irons
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Red Corvettes Have More Fun!
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