Topic: 70 alarm help
in Forum: C3 Electrical
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Hi guys, I need help on the factory alarm system on my 70 coupe. Can someone send me a diagram of it, or explain how it's supposed to work? I believe all the parts are on the car. Horn,relay and flasher are behind the passenger seat and all connected. Where does it start from at the fuse block? The diagrams I have do not show it........ Thanks Tom
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
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The diagram will be correct, but the actual wire colors may be different for the year models. I'll add that the "control switch" in the diagram is the fender or taillight panel mounted key switch, in case that's not readily apparent to everyone, and the "anti-theft" switch will NOT be on the '70 model, as far as I know. The anti-theft switch is the switch that is located directly below the key switch in the fender. It's purpose is to engage the system if the key-switch is pryed out of the fender(or rear panel)...sort of a fail-safe, back-up switch. I don't think they used that set-up until '73-'74, but I may be wrong. 
Other than that, the schematic will be the same for all of the Sharks, except the later cars that also had the t-tops wired into the system...those do not have the on/off key switch on the fenders...the switch is incorporated into the door locks.
btw...the "anti-theft" switch is the same exact type switch used as the headlight warning switch...
Adams' Apple 2009-09-15 20:18:05

Other than that, the schematic will be the same for all of the Sharks, except the later cars that also had the t-tops wired into the system...those do not have the on/off key switch on the fenders...the switch is incorporated into the door locks.
btw...the "anti-theft" switch is the same exact type switch used as the headlight warning switch...

Joel Adams
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Dang Joel! You do get around. Is there nothing you're not familiar with?



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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
[QUOTE=aceinthehole]Dang Joel! You do get around. Is there nothing you're not familiar with?
[/QUOTE]
I'm not all that familiar with Nuclear Physics....but I'm working on it...


I'm not all that familiar with Nuclear Physics....but I'm working on it...


Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
in Forum: C3 Electrical
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