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A/C switch as a Kill Switch?

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Old Jul 12, 2013 | 08:10 AM
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Default A/C switch as a Kill Switch?

Hey HT, I would like to know if anyone has tried to wire their A/C button to have it be used as a kill switch? This would be a good idea because basically a thief would not think that a kill switch would be an AC button, kind of like hiding it in plain sight. Basically if anyone has a diagram or anything that tells me which wire on the climate control belong to the A/C that would be great.

PS: Does anybody know if the A/C Button can handle the load from a Main Relay kill switch?
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Old Jul 12, 2013 | 08:13 AM
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Default Re: A/C switch as a Kill Switch?

lol so are you telling us that if "said thief" want's the A/C the car will cut out. or do you mean you push it every time you exit the car. just sounded funny picturing it in my head
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Old Jul 12, 2013 | 08:40 AM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by B_Swapped93
lol so are you telling us that if "said thief" want's the A/C the car will cut out. or do you mean you push it every time you exit the car. just sounded funny picturing it in my head
hahaha i would push it in to start the car and push it out to disable it
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Old Jul 12, 2013 | 10:13 AM
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Default Re: A/C switch as a Kill Switch?

Not a terrible idea. let us know if you ever go through with it and how it works for ya
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Old Jul 12, 2013 | 10:16 AM
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Default Re: A/C switch as a Kill Switch?

It would work fine, I've used my cruise control button as a kill switch before, worked just fine.
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Old Jul 12, 2013 | 11:14 AM
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Default Re: A/C switch as a Kill Switch?

Cruise Control button looks like a great idea, I was thinking about that...
I think the AC control button should do the same way!!
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Old Jul 12, 2013 | 11:31 AM
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Default Re: A/C switch as a Kill Switch?

so does anybody know which wire on the back of the climate control is the AC, or know any way to know which wire it is?
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Old Jul 12, 2013 | 12:20 PM
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Default Re: A/C switch as a Kill Switch?

Find a Helms manual with the wire diagrams on it.

As for the switch itself, be sure to wire it to a relay so that the relay is handling the current to the starter, and not the A/C switch itself. That would be a good way to burn out that switch quick, because the starter draws a LOT of current.
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Old Jul 12, 2013 | 12:23 PM
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Default Re: A/C switch as a Kill Switch?

The A/C switch can be used as a kill switch, I have done a few of them.

On Integras, the A/C switch supplies a ground, if blower motor is on at any speed.

I use it to latch a "latching relay" and the relay can be used to "cut" any lead.

The advantage is both the blower and A/C switch must be on to latch the relay, kind of a double redundant kill switch that is "self arming" each time you turn off the ign., [as long as A/C switch is off. 94
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Old Jul 12, 2013 | 12:36 PM
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Default Re: A/C switch as a Kill Switch?

I've seen these done a few times, but could never figure out how they're done.

I knew this kid that had it in one of his climate buttons and like a turn signal or some thing but he would never tell how he did it.

Very interested in how you do this, my ol' fuel pump cutoff isnt enough for me
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Old Jul 12, 2013 | 12:37 PM
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Default Re: A/C switch as a Kill Switch?

fcm, could you explain how you did that?
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Old Jul 12, 2013 | 12:42 PM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by PatrickGSR94
Find a Helms manual with the wire diagrams on it.

As for the switch itself, be sure to wire it to a relay so that the relay is handling the current to the starter, and not the A/C switch itself. That would be a good way to burn out that switch quick, because the starter draws a LOT of current.
since im doing the main relay ground, i wouldnt need a relay since the ground has low amperage anyways. I dont want to buy a helms if im going to use it only for one thing
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Old Jul 12, 2013 | 12:52 PM
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Default Re: A/C switch as a Kill Switch?

internet man, internet... but you didn't hear that from me

However I must say I have a legit printed Helms and it has literally saved me THOUSANDS of dollars over the years.
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Old Jul 12, 2013 | 01:47 PM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by fcm
The A/C switch can be used as a kill switch, I have done a few of them.

On Integras, the A/C switch supplies a ground, if blower motor is on at any speed.

I use it to latch a "latching relay" and the relay can be used to "cut" any lead.

The advantage is both the blower and A/C switch must be on to latch the relay, kind of a double redundant kill switch that is "self arming" each time you turn off the ign., [as long as A/C switch is off. 94
that sounds interesting, but the thing is you seem to have your AC, while I had to remove mine, because i went the turbo route, so since no AC, might as well make use of the switch lol
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Old Jul 12, 2013 | 02:09 PM
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Default Re: A/C switch as a Kill Switch?

Now all the thiefs are going to be turning on fans and ACs buttons when they try to steal cars.

Great idea none the less though.
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Old Jul 12, 2013 | 03:36 PM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by PURPLERANGER
that sounds interesting, but the thing is you seem to have your AC, while I had to remove mine, because i went the turbo route, so since no AC, might as well make use of the switch lol
I do not have A/C in my Integra, and I am not using the A/C switch, for anything.

I do have a "stealth switch", [can be any switch in the car, even if used for something] that is the neat thing about having a switch latch a relay.

EG; you can have A/C and still use the A/C switch to latch the relay and that applies to any switch in the car, pos.(+) or neg.(-) output, momentary switches, [CC set/resume , ect] have an advantage over on/off switches as you can not forget to turn them off.

There are a number of ways to make latching relays, Google is your friend. 94
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Old Jul 13, 2013 | 06:54 AM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by fcm
I do not have A/C in my Integra, and I am not using the A/C switch, for anything.

I do have a "stealth switch", [can be any switch in the car, even if used for something] that is the neat thing about having a switch latch a relay.

EG; you can have A/C and still use the A/C switch to latch the relay and that applies to any switch in the car, pos.(+) or neg.(-) output, momentary switches, [CC set/resume , ect] have an advantage over on/off switches as you can not forget to turn them off.

There are a number of ways to make latching relays, Google is your friend. 94
oh, well do you happen to know which wires fron the climate control is the AC?
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Old Jul 13, 2013 | 03:55 PM
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Default Re: A/C switch as a Kill Switch?

Blue/red, it runs to the A/C thermostat, mounted to the A/C unit.... 94
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Old Jul 15, 2013 | 12:43 AM
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Default Re: A/C switch as a Kill Switch?

Im self debating about how everyone should know this info and not know it at the same time. We dont need this becoming common knowledge.... I vote thread gets deleted on grounds of being too good! Now Im going to do something similar.
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Old Jul 15, 2013 | 12:50 AM
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Default Re: A/C switch as a Kill Switch?

this won't work, I mean it will work, but a smart thief is going to push every switch on the dash when the car doesnt start. I've seen modules where you have to use a sequence with a switch in plain sight, now that makes sense, whether the thief finds the switch or not, they still dont know the sequence
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Old Jul 15, 2013 | 12:35 PM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by lostforawhile
this won't work, I mean it will work, but a smart thief is going to push every switch on the dash when the car doesnt start. I've seen modules where you have to use a sequence with a switch in plain sight, now that makes sense, whether the thief finds the switch or not, they still dont know the sequence
Whoever said a thief is smart.

As a stand alone kill switch I would not recommend it but as a layer it works, don't forget a thief is in a hurry, once he cranks the engine, [makes noise] he's not going to want to hang around very long, definatly not long enough to try every switch in the car

Besides with an A/C switch, both the blower and A/C switch need to be on.

And anybody that thinks this is to only place to find this info is kidding themselves. 94
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Old Aug 27, 2013 | 08:12 AM
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Default Re: A/C switch as a Kill Switch?

Originally Posted by fcm
Whoever said a thief is smart.

As a stand alone kill switch I would not recommend it but as a layer it works, don't forget a thief is in a hurry, once he cranks the engine, [makes noise] he's not going to want to hang around very long, definatly not long enough to try every switch in the car

Besides with an A/C switch, both the blower and A/C switch need to be on.

And anybody that thinks this is to only place to find this info is kidding themselves. 94
wait, so what im getting from this is I cant wire an A/C kill switch because I dont have a blower?

it was going to go like this Main Relay-->A/C Switch (blue/red)-->Main Relay
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Old Aug 27, 2013 | 10:32 AM
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Default Re: A/C switch as a Kill Switch?

knock yourself out:
http://108.imagebam.com/download/Vg4...ture%20005.jpg

some of the manuals are dirt cheap if you browse amazon/bookfinder/allbookstores/ebay.
even saw some helms for fairly cheap (and some for $200).
i snagged the chiltons acura coupes/sedans for $2.50 and the haynes civic/integra for $3.00. :w00t:
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Old Aug 27, 2013 | 10:35 AM
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Default Re: A/C switch as a Kill Switch?

I don't have a kill switch but I have a hidden reverse lock out switch that keeps anyone from putting it into reverse.
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Old Aug 27, 2013 | 01:41 PM
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Default Re: A/C switch as a Kill Switch?

If they scout you out long enough, they can watch and learn your sequence.

Or they'll just tow the car. Depends on how badly they want it.
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