Printer Friendly Forum Posts - remote engine shut down

I am installing a Black Widow BW7150, in my 2001 Mitsubishi Galant and I want to be able to shut down the engine with the remote control of the alarm, like in the event of a car jaking, the alarm has a remote start feature, but I will not use this feature, the auxiliary neg. output is already used for the trunk; what can I do, and how? thanks for the help.

Randall

my best guess would be to find the main ingition wire and cut it in half and install a relay so that when the relay is at rest it lets power flow through the ignition wire and then wire the coil of the relay so that when you press the button for the output it will energize the coil, breaking the ignition connection.

The problem I see is that most of the outputs that are used to trigger a remote start are 1 sec long, so it would kill the ignition for 1 sec then give it power again. You would have to somehow make the relay stay disconnected.

hope this helps

conrad

thanks Conrad, so, anyone knows how I can make the relay stay disconnected?

im not sure if this would work...........here is what im thinking....you need to hold the relay open for a bit.....if you going to use the remote to trip the feature...then you have to be close enough for the range of the transmitter......if you take the relay and use an output (such as the siren output) that will last a little longer, you may be able to hold the relay open for 60 sec.....or you may have to use some kind of timer....

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Good Luck
David
Ace Security
813-376-9778
Tampa
Donate to the 12volt

Very simple. Take the trunk wire and split it's output with a standard relay. In other words, put the trunk output (from alarm) on 30, the wire to the trunk release relay on 87a, (I assume you already installed a release relay?) and the ign. shutdown wire to 87. Run a ground to 85 and an ign (preferrably ign. 2 if it has one) to 86. The wire off of 87 will go to a "latching" relay (yes, you need to locate one) which will open the main ignition line with one pulse from the trunk release ONLY when the ignition is on. If you pulse it again the ign. will reconnect. Latching relay uses 87a and 30 for the main ign. line. Connect 85 to 30 on this one, and 86 comes from 87 on the first relay.

When the ignition is off, the trunk release will operate normally. You will end up with two outputs from one wire.....ign. off, trunk release. Ign. 2 on, main ign. kill. Hope this helps.

Sorry one more thing to note....You obviously will only be able to pop the trunk with the motor OFF! If that's OK, then have fun and go nuts. posted_image

In addition....

1) You'll have to be carrying the remote on you at all times in order to prepare for your ordeal.

2) The jacker will be within transmitter range looking for you after the car smashes into a barrier without power brakes and power steering.

3) You are responsible for their death when the above happens at moderate speeds.

4) Please dont do this. Relays fail and can kill you and someone else. Its not worth it esp. with a Black Widow 7150. You never know when those things will explode.

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Someone pass me that bottle.

Oh, I'm gonne enjoy this! OK.........

1) Who DOESN'T carry an alrm remote with them at all times???? DUH!

2) In case you didn't know...this is a well known and accepted anti carjacking tecnique to kill the ignition AS SOON as you exit the vehicle! NO BARRIERS, NO DEATH, JUST ONE MORE DUMBASS carjacker that got caught in a vehicle that went NO PLACE! What would YOU do...sit there and wait 'till he got out and chased you?? I know I'd be gone. With the remote still with me! LOL!

3) In 17 years of installing, I've NEVER EVER had one Bosch relay fail! Use quality stuff!

4) If the BW7150 fails (and it will) (junk) it CANNOT still operate the relay in the way I explained it! If it fails, it fails to trigger the relay.

Geez, yer not a Metro graduate are you?

Oh, I'm gonne enjoy this! OK.........

1) Who DOESN'T carry an alrm remote with them at all times???? DUH!

3) In 17 years of installing, I've NEVER EVER had one Bosch relay fail! Use quality stuff!

4) If the BW7150 fails (and it will) (junk) it CANNOT still operate the relay in the way I explained it! If it fails, it fails to trigger the relay.

Geez, yer not a Metro graduate are you?

Randall...do it and sleep well tonight. posted_image

Sorry Metro Grad didnt mean to offend. Youre telling me that if someone jacks you that you have the alarm remote in your pocket and not attached to your key ring? I dont think that applies to everyone here buddy.

You haven't had a Bosch relay fail huh.... maybe you should install some more alarms. 17 years of sitting on the side eating cheeseburgers telling part timers to fetch dont mean squat. The liability issue is key. Im not trying to light a fuse here but come on... this is what auto insurance is for.

If your that worried about getting jacked lock your doors and install bullet proof glass. No, Im sorry move far away. No wait, never leave your house.

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Someone pass me that bottle.

First off, I'm NOT a Metro grad...that's why my customers are happy with the finished product.

Second...That's right. 17 years of installing EVERYTHING myself! I own AND work the business all by my lonesome. I speak from experience when I say a Bosch has not failed me yet. P&B??? JUNK! Hella?? Forgetaboutit! Siemans????? hahahahaha! Yes, 17 years has taught ME, not some part-timer what works, what dosen't, and what the definition of "liability" is. Ask a lawyer if he thinks a criminal who just stole your car can sue you if it fails while he's driving it. I'm sorry...I mean STEALING it! See what the jury would say about that.

As far as keeping thr remote in the guy's pocket?? If that's what it takes to make him feel safe, then fine. I guess I'm too nice an area to a younger male get 'jacked. Hear about women and such all the time, but never a younger male. Maybe YOU should move by me and you might not worry about liablities so much.

Anyway keep this going if you will...I'm out. Gotta get back to WORK!

I think that I am going to enjoy this as well!

1. Do you always carry a spare remote or are just planning to take the one on your keys? Do you really think that you will have enought time to take off when a carjacker pulls a gun in your face?

2. You cause the vehicle to stop then YOU are liable for whatever happens because of this. Why do you think that no one makes one of these? There is too much liability to do this.

3. Relays can and do fail, regardless of brand. I don't know why people still think that this doesn't happen. By the way don't say "never", it is just begging to be argued.

4. You don't know how the alarm will fail. It may blow something in the alarm and permanantly activate the acc output.

Being that he is in Puerto Rico, the laws may be different there. If you are scared of being carjacked then either deal with it or carry a big gun.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Just to add, this falls under the same type of law that shooting a burglar. You wouldn't think that he could sue you but they have won civil cases.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

I think we all missed the point here. You're NOT causing the vehicle to stop! Done properly, the vehicle will never proceed. That's the point! Yes, it would be a major problem if the thief lost control and killed someone while driving. The idea behind this is to not let them drive it away to cause any damage.

I didn't notice he was from PR which changes things anyway. If he decides this (carjacking) would be an issue, then yes he can opt to carry a second remote on him to accomplish this without the thief knowning what happened. Again of course, he would have to push the button IMMEDIATELY upon leaving the vehicle. The timing of this would have to be at his own discretion. I'm not saying it's a totally legal thing to do...I'm only stating it can deter a thief if done properly.

Word.. It would work. You can also deploy the air bags, seize the brakes, and send a flare into the air. WIRE like I stated Im not here to burst bubbles but come on. Starter kills are starter kills for a reason. They are not ign kills because sh!t happens.

Firestone tires explode and Bosch relays fail. Both can cause death. So can a penny from 30 stories up.

Most on here ask questions to help them.. if they dont know the immediate answer from experience and practicality then thats what we are here for. Lets just state the obvious and not install remote starts on nuclear weapons. LOL

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Someone pass me that bottle.

My last thing to add. Technically, no you are not causing the vehicle to stop, you are disabling the power steering and power brakes by stalling the engine. You also should figure that it will take at least 5 seconds (at least 2 while being removed from the vehicle and 3 to activate the channel on the alarm) to activate this type of device, so he could get up to speed if the carjacker is fast enough. Not knowing what the criminals are like in PR, I also don't know what the criminal would do to you if the engine died once you where pulled out of the vehicle, for all we know they might just shoot him for it. Again going back to not knowing the criminals/crime in PR, if he is worried about being carjacked then maybe he should invest in body armor, lexan windows, kevlar, and a gun, or just don't drive. I honestly don't even believe that remote ignition kills are legal in the US.

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Certified Security Specialist
Always check info with a digital multimeter.
I promise to be good.
Tell Darwin I sent you.

I've been sick lately, sorry I won't be on much.

Hmmmm...remote starts on nukes....you thinkin' what I'm thinkin?? Now THERE'S a niche no one got a hold of yet! posted_image

I think it's funny that I'm arguing over something that I've not done on any vehicle. I don't think I've ever installed a system kill like that for anyone. I personally don't believe in installing a system like that, only starter kil, But I guess I basically wanted to tell the guy yes, it can be done. As far as liability?? That's a whole 'nother story. WAAAY too grey an area for me. As far as getting away with it? I'm thinking "OJ" right about now. Ya with me?

OK, I'm out. Changing the name to protect the innocent! LOL!