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Topic: Back up switch on manual tranny?

in Forum: C3 Electrical

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Back up switch on manual tranny?

Posted: 9/10/10 4:18pm Message 1 of 3
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persico
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Long Valley, NJ - USA
Joined: 3/21/2007
Posts: 293
Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
I was working on the interior wiring on my 1972 4 speed and found a wire where the insulation was melted end to end!  The previous owner thought wrapping it end to end in electrical tape was an adequate solution!!!  According to wiring diagrams and scrounging around in a 73 that was being used to display an Auto Twirler at Carlisle, the best I could determine this pink wire from the 4 way flasher element pairs up with a lime green wire into an "L" shaped connector which is gone in my car..  The matching half of that connector is also missing (no surprise) on my car but I believe that it connects through the firewall to a back up light switch mounted on the transmission.  The entire back up light switch and harness is missing from my car as well so I have no way to verify this.  Can anyone verify this.  Its hard to determine even looking at the factory assembly manual.  Sorry for the long post!  Thanks! (also added this post to a thread on drive-line questions)


Mario

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Back up switch on manual tranny?

Posted: 9/11/10 9:26am Message 2 of 3
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Adams' Apple
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
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
The wiring diagram shows a pink wire coming off of the turn signal flasher, going to the back-up light switch, on the side of the trans. From there, the light green wire goes to the lights in the rear. Click on the image below to see what the switch on the trans looks like, and it's location. The switch is on the lower part of the trans(lower right in the pic).

                                                           



Joel Adams
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Back up switch on manual tranny?

Posted: 9/12/10 9:02am Message 3 of 3
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persico
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Long Valley, NJ - USA
Joined: 3/21/2007
Posts: 293
Vette(s): 1972 454 Coupe, 4 speed, Targa Blue with blue interior, luggage rack 2019 Grand Sport Coupe, M7, Ceramic Matrix Gray with gray interior
Great help, thanks much.  One more mystery off my list!


Mario

in Forum: C3 Electrical


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