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anti theft system how does it work

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Old Feb 28, 2009 | 12:25 PM
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Default anti theft system how does it work

can anyone explain to me how the anti theft system in a 1978 corvette works, my relay seams to be draining my battery. Can I simple un hook it? Not sure how it works anyway.
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Old Feb 28, 2009 | 06:33 PM
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its mainly just a bunch of switches in the open position, waiting to be triggered or closed and then locking in a relay and flasher (pulser) that goes to a horn.
http://www.corvetteforum.net/c3/tune.../index24.shtml
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Old Mar 1, 2009 | 07:17 AM
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Originally Posted by jknb1205
can anyone explain to me how the anti theft system in a 1978 corvette works, my relay seams to be draining my battery. Can I simple un hook it? Not sure how it works anyway.
You can unhook but than if there is a drain...it may not stop the drain. I would troubleshoot, find the problem, fix it than remove the relay. But than how did you assess it was the relay? You can see from the wiring diagram that there are five switches (maybe seven depending on when you're 78 was assembled) and the relay gets a constant feed.

Keep us posted...I've started to troubleshoot my system because its not working but I started with the alarm horn which was not working.
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Old May 3, 2009 | 09:32 PM
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Turns out Theft relay was not bad, alarm was simply going off and since the previous owner had removed the theft horn only sign that alarm was activated is the battery would be dead after week or so. Found out how to turn system on and off then disconnected wire at relay to keep alarm from accidentally draining the battery, since there is no way to know if it sounding.
Thanks,
Jim
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