Kill Switch Ideas?

kiwi

TJ Enthusiast
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Joined
Mar 26, 2021
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Seattle
Looking to install a Kill Switch on my TJ. Just looking to add a simple switch, those who have done this, which wires did you tap into? Got any pictures?
(It's a manual BTW)
TIA
 
Here is my hidden (in plain sight) kill switch. And, the "key."

20211214_081923.jpg
20211214_081931.jpg
 
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Into the ignition switch. It's right by my CB, so it looks like it's for a piece of equipment that I removed.

Elsewhere, i have also recommended a headphone jack. Or, maybe even a usb jack. Both with shorted plugs as the "switch."
 
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If I do one normally, I find the wire that powers up the rig at key on and cut that. I extend it over to a limit switch that has a high strength neodymium magnet glued with epoxy to the trip lever. That is typically tucked up under the corner of the dash so it can't be seen.

The reason for the magnet on the lever is that requires a polarity specific magnet to push it down to make contact at the limit switch to close the contacts on a latching relay. If you cycle the key off, you have to reset it. Once it is tripped, it will stay latched until power is killed.

The trip magnet is the polarity correct side of one of the keychain magnets. The wrong side goes to the key in the ignition so you can pull off the trip half and close the relay without having to remove the key from the ignition.

https://www.amazon.com/dp/B076SD72HV/?tag=wranglerorg-20
 
I have a latching relay interrupting my ASD relay circuit. The switch is hidden at the base of my 4wd selector switch. When I start the Jeep, I turn the key to the on position, hit the kill switch button so the relay latches and then crank the engine.

I also have a bypass switch hidden behind the glove compartment incase I need to bring the Jeep to a shop or something and don't want to tell them about the kill switch.
 
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If I do one normally, I find the wire that powers up the rig at key on and cut that. I extend it over to a limit switch that has a high strength neodymium magnet glued with epoxy to the trip lever. That is typically tucked up under the corner of the dash so it can't be seen.

The reason for the magnet on the lever is that requires a polarity specific magnet to push it down to make contact at the limit switch to close the contacts on a latching relay. If you cycle the key off, you have to reset it. Once it is tripped, it will stay latched until power is killed.

The trip magnet is the polarity correct side of one of the keychain magnets. The wrong side goes to the key in the ignition so you can pull off the trip half and close the relay without having to remove the key from the ignition.

https://www.amazon.com/dp/B076SD72HV/?tag=wranglerorg-20

I think you may told me before, but this is very similar to the the "Daless2 system" that you can buy from quadratec, right? I think the way you describe is exactly how that switch works in my XJ. I don't have a keychain magnet since I don't want to have issues with my card stripes, but I just keep a magnet inside the car attached to the seat bracket.

https://www.quadratec.com/products/15001_1000.htm
edit: perhaps not - I overlooked that bit about polarity. I haven't really tested mine that way, and I don't think it matters in my setup.
 
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For those thinking the inability to start the engine will slow a determined thief down, don't. A witness to my previous TJ's theft said a flat-bed tow truck backed up to my TJ and dragged it out of my company parking spot and took off with it. Never tried to start it. Took less than 2 minutes from start to finish according to the witness who thought it was just going to a garage for repair when he saw the tow truck.
 
For those thinking the inability to start the engine will slow a determined thief down, don't. A witness to my previous TJ's theft said a flat-bed tow truck back up to my TJ and dragged it out of my company parking spot and took off with it. Never tried to start it. Took less than 2 minutes from start to finish according to the witness who thought it was just going to a garage for repair when he saw the tow truck.
I understand that it won’t be effective in all scenarios. But for a 5$ switch and an hour of work, it’s worth a shot. Not everyone will bring a tow truck to steal a car, many people just attempt to drive it off, and a kill switch will at least slow them down a bit.
Sorry to hear about your TJ
 
I think you may told me before, but this is very similar to the the "Daless2 system" that you can buy from quadratec, right? I think the way you describe is exactly how that switch works in my XJ. I don't have a keychain magnet since I don't want to have issues with my card stripes, but I just keep a magnet inside the car attached to the seat bracket.

https://www.quadratec.com/products/15001_1000.htm
edit: perhaps not - I overlooked that bit about polarity. I haven't really tested mine that way, and I don't think it matters in my setup.
This is still the best deal going,and he includes two wires of different color to wire around if you want to disable it.
 
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I understand that it won’t be effective in all scenarios. But for a 5$ switch and an hour of work, it’s worth a shot. Not everyone will bring a tow truck to steal a car, many people just attempt to drive it off, and a kill switch will at least slow them down a bit.
Sorry to hear about your TJ
Inversely, the fact that we have the factory kill switch on our 04 is the reason we still have it.
 
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This is still the best deal going,and he includes two wires of different color to wire around if you want to disable it.

I have had that kill switch in my XJ for a while. Works great, no issues whatsover. I picked up a cheap neodynmium magnet with a hook (used for hanging stuff in kitchens and such) from a local hardware store and that hook just sits on my A-pillar in plain sight and I hang my wilderness permit on it :)

hook.jpg
 
I have had that kill switch in my XJ for a while. Works great, no issues whatsover. I picked up a cheap neodynmium magnet with a hook (used for hanging stuff in kitchens and such) from a local hardware store and that hook just sits on my A-pillar in plain sight and I hang my wilderness permit on it :)
We use the little keychain magnet that looks like a piston,get it from Amazon and stick it somewhere in the Jeep