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Instead of installing an expensive car alarm system or using ineffective methods to prevent your car from getting stolen, learn how to install an inexpensive, hidden kill switch.
This kill switch is easy to install and anyone can do it at home with basic tools. It can also work along with your car's current alarm system. How it works is it cuts the power to the fuel pump so you cannot jump start the car, hot wire it, or even push start it. In order to steal the car you need to tow it! It is better than a batter quick disconnect because your computer wont restart and you wont lose your radio stations.
Dream Car:
Products Used:
Automatic Wire Strippers:
Crimping Pliers:
On/Off Switch:
Heat Shrink Butt Connectors:
16 Gauge Wire:
Spade Connectors:
Inexpensive Multimeter:
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Due to factors beyond the control of ChrisFix, I cannot guarantee against improper use or unauthorized modifications of this information. ChrisFix assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. ChrisFix recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of ChrisFix, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not ChrisFix.

Hey guys, ChrisFix here and today, I'm going to show how to install a hidden kill, switch in your car or your truck., And the whole point of this kill switch is to prevent somebody from stealing your car.. Even if they have your keys. If the kill switch is activated, they won't be able to start the car.. They can try to hotwire the car.

They can try to jumpstart your car push start it.. This kill switch is going to prevent the car from starting no matter what.. The only way to steal your car is going to be to tow it, And the best part is. This is an inexpensive thing to install.

It's going to cost less than $ 10 and it's going to take less than an hour.. It's super simple: it works on most vehicles., Even if you already have an alarm system, this can work along with it. And it's unfortunate that I even have to make this video.. I live in a pretty nice.

Development., It's pretty quiet here: everybody's pretty friendly., But recently we've been having a lot of break-ins. People are getting into cars, broken into they're, getting stuff stolen out of them. There's a few cars that have been stolen from neighborhoods nearby., My buddy saved up for a long time to get one of his favorite cars. A Honda S2000 in pristine condition only to have it stolen and parted out a few days.

Later.. Not only was he heartbroken about his car getting stolen, but that feeling of helplessness and getting taken advantage of by a criminal was horrible. So that is exactly why I'm going to be showing all of you guys how to install a kill switch. So you don't have to feel that way., You don't have to lose your car..

Also. A lot of people are stealing stuff from garages. So I'm also going to be installing a SimpliSafe security system.. I've got a camera.

I've got a bunch of sensors, all that good stuff, so the garage is gon na be protected and the cars are gon na be protected. And here's all the tools that you need. It's super basic.. We have a switch.

We have crimp connectors, we have 16-gauge wiring., You need a multimeter crimpers wire strippers heat gun and, as always, when you're working on a car make sure you wear your safety glasses.. So enough talking, let me go show you how to install a kill switch. And to start you're gon na want to know the basics on how this is gon na work.. So the kill switch that we're going to install is gon na cut the power to the fuel pump relay..

So this right here is the car battery.. It supplies the 12V through the relay into the fuel pump., So our fuel pump is pumping fuel into the engine and the engine will run.. Think of this relay as an on/off switch.. When you put your key in the ignition and turn it to the RUN position to start your car, the computer is telling the fuel pump relay to turn on and that is supplying power to the fuel pump..

So what we're gon na do is we're gon na splice in our kill, switch right here. That way when our kill switch is activated, it cuts the circuit.. The computer cannot send a signal to this relay and this relay will not send power to the fuel pump.. Therefore, the car won't start., It's really simple..

All you need to do is find the fuel pump relay and I'll show you how to do that right. Now. Now the fuel pump relay is located in different spots for different vehicles. It'll, be different in this Honda compared to this truck and so on and so forth.

To find your fuel pump relay just check your owner's manual check the service manual. Do a quick online search, `` 1993 Honda Del Sol fuel pump relay location'' or whatever your vehicle is.. In this case it is right under the dash. Let me show you right down.

Here. You can see right here is our fuse box. A lot of the times. The relay's in the fuse box., But in this case Honda puts their relays back.

Here. Here are all the different relays., And this gray relay right here is the fuel pump relay for this Honda. Now, if you're, not 100 %. Sure, if this is the correct relay, one thing that you can do to test is to put your fingers on it.

And when we turn the key to the RUN position, the relay should click on., You'll, hear the fuel pump run for a couple seconds and then It'll click off because the fuel pump is primed.. I can feel it and I can hear it so I know for sure this is the correct relay. Now to disconnect the wiring harness you just press in this tab right here with your fingers and wiggle. This back and forth.

Like that and pull it out., Never pull from the wires, always pull from the connector. So we don't damage anything. And, as you can tell there's a ton of wires here. So how do we know which one we need to tap into with our kill switch? Well, it's pretty easy to figure out..

Let me go show you how to do that now. So grab a multimeter., I'm gon na set it down right, here. And we'll start by connecting the black probe to a ground.. So we need to find a bare metal surface like this.

And right here. You can see a nice bare metal surface which is holding our hood release in., So grab your ground wire and connect it right to that chassis, ground. And now our multimeter is grounded. And now we're gon na grab our multimeter and turn it on to DC volts..

You want to set it to 20 DC volts, because 12 volts is the highest we're gon na see.. Now we're gon na take our red probe and what we're gon na do is. We need to find which of these wires is gon na be hot? Is gon na be on providing 12V when the car is in the RUN position only.? So when we turn the key, we get 12V.. That's the wire coming from the computer going to this triggering that relay., But before we turn the car to the RUN position, we just wan na check real, quick with the car off.

If any of these are 12V., If we find one that's 12 volts, we can ignore that wire. That one is hot, all the time. And that's what the relay's gon na connect to to power the fuel pump.. So the top right corner is hot all the time.

12V, all the time.. We don't have to worry about that one.. Now, let's turn the car to the RUN position.. So now, with the key in the RUN position we're gon na probe each one of these and just see which one is gon na, be our trigger wire, our 12V..

There we go so we have 12V with this one right here.. I just wan na check the others just to double-check and make sure. Good no voltage, and obviously this one will be 12V. That's always hot.! So this one right here, I'm gon na probe.

I'm gon na push this in. That one is 12V with the key on.. If I shut the key, it goes down to 0 volts.. When I turn the key on.

It goes back up to 12 volts., So we wan na follow that probe into the wire the probe's at the top here.. So it's this wire right here.! You can see! That's the correct wire., That is the wire that is coming from the computer and then triggering our relay to turn it on to give power to the fuel pump.. So we need to splice into this wire right here. Now before we go cutting any wires any time you work with the wiring harness we wan na, go under the hood and remove the negative cable from the battery..

This will just prevent anything from shorting out or blowing any fuses., And it's what you wan na do any time you work on an electrical system. Now splicing into the factory. Harness is gon na, be the part that most people are apprehensive about.. They don't wan na.

Do it because well what happens if you do something wrong, But don't worry! This is really easy. Here's a few quick tips.! First, you don't want to cut near the connector.. You also don't want to cut near the end here. You want to cut in the middle.

So you have a lot of room on both sides to work and splice in a new wire., So we're gon na cut right, here. Good. So now grab your wire strippers.. These are automatic wire strippers that makes it nice and easy in these tight areas..

You just clamp down and it strips it right, off.. So that's one side, done.! Let me give you a closer look. When we do the other side. You just put the wire where you want it to get stripped.

And the automatic wire stripper does its job. Beautiful. So now that both of our ends are stripped, we can add our kill switch., But we're not gon na wan na add the kill, switch right. Here.

We wan na hide our kill switch, which is not gon na, be right next to this.. So when hiding your kill, switch, there's two things: you wan na think about.. The first thing you wan na put it in a place, that's easy to get to. Somewhere.

You don't have to reach all the way into the glove box. Every time and fiddle around. You're gon na be doing this every time you go to start your car., So you wan na make it simple to get to. Now with it being simple to get to you.

Don't wan na make it easy to find.. So you don't wan na just put it under the dash where the criminal's gon na look. That's like the first place when they can't go to start the car they're gon na feel for switches down here., So don't put it under the dash. You wan na find someplace hidden someplace, where you know they're not likely to look.

The radio's, actually not a good idea, because a lot of criminals when they can't steal your car, they're gon na try to steal your radio.. But a lot of people like to put it underneath the seat you have to reach somewhere. It's harder to find., It's easy to get to. Another place is the glove box.

Again. If you have stuff in here, it's harder to find, but it's easy to get. To. Get creative.

This is the part where you can have some fun, So I'm gon na share with you, my spot., I'm gon na end up having to change it because millions of you are gon na see this., But my spot, which I think is a really cool creative idea - Is in the shifter boot. So underneath the shifter boot we're gon na find a spot., You can't see the switch, but you can easily feel it and turn it on and off.. So that's where we're gon na place, our kill, switch. But again be creative, Have fun with this.

Place it somewhere unique.. So since I told you we're gon na put it right here, this is where we're gon na go and run our wires from.. So, let's take the center console apart. Since the previous owner never put the screws back into the console.

It lifts right, out. Same with the front part of the console.. Oh, we got ta unscrew the shift knob first. Good..

Now the console will come out the rest of the way. And check this out. We have a flat surface down here and a flat surface up here to mount the switch into.. Now we wan na unscrew the two screws holding in the shifter boot., That's one.

And let's get the other. Good. And now the shifter boot comes right out just like that.. Next, let's grab the switch and match it up to see if it'll fit.

And that's looking pretty good right there.. So, let's make a mark in the middle here. Then grab a centerpunch and we want to indent the spot. We just marked.

And what this does. Is it puts a little indentation. That way when we get our drill bit, the drill bit won't skip around. It falls right into that indentation and it won't move at all, so it makes it a lot easier to drill., So we're gon na start.

With this small drill bit and then we're gon na work our way up to this bigger one., So on a slow speed and with some decent pressure, let's get the first hole, drilled out. Now with the bigger drill bit, let's drill the hole out to fit the Switch. Good.: Now we can test fit our switch. Beautiful now we can add our On/Off plate..

This is gon na act more like a washer, since we're not actually gon na be able to see this.. Then I'm gon na add a little bit of thread locker on here. Just so our switch doesn't come loose., And then we have our locking nut, which goes right on the end, and we can tighten this down. And our switch works.

Great, that's perfect. The only thing that I'm concerned about is these wires right here against this metal surface. Over time they could chafe and that can short out. We could break a wire and then we wouldn't be able to start our car..

So what I'm gon na do is I'm gon na get a little rubber wire protector and I'm gon na just slide this over the wires. I'll slide that down And you can see now it's protected. So our wires won't chafe., We'll add a little bit of black tape to hold that in place, and that is good to go.. Now.

The last thing we need to do is we need to make a quick disconnect. That way. If we ever need to remove this interior piece, we can easily just disconnect this. And to do that.

We're gon na use these crimp-on spade connectors.. All they do. Is they slide right in and there's a good connection there. And then, when you wan na separate it ..., They come right apart..

So we're gon na put two of the male spade connectors on the end here., But first, let's add some heat shrinking on each wire.. Then we can push on our spade: connector. Crimp it so there's a good connection, and so this doesn't come. Loose.

Move the heat shrink up over the connector., Finally use a heat gun to shrink the heat shrink. And do the same exact thing to the other. Spade connector. Push it on crimp, it move the heat, shrink up and use a heat gun to shrink the heat shrink.

And there we go now. We have two quick disconnects spade connectors that are properly crimped and heat shrinked on there., Alright. So, with our switch in that works, absolutely perfect., That's so good.! Now we can go and install this back in the car. And back in the car.

We need to run some wire. We're using 16-gauge wire. And we need to run it from right about here. All the way under the dash to our fuel pump relay..

So I'm going to put the wire on the shifter since that's about where it's going to end up., And it also makes it easier for us to run it all the way to the relay.. So make sure you have enough wire, then we can cut it. And since we need 2 wires use the wire you just cut to measure the second wire. And we can cut it to the same length..

Now, let's strip the ends of the wires., Add heat shrink to both wires. Then add the female spade connector and crimp it. Then do the same for the other wire as well.. Finally, move the heat shrink over the entire connector and use a heat gun to shrink the heat shrink.

Perfect and I always like to run wires in a wire loom to protect it from chafing.. So just press the wires into the loom and work it all the way to the end of the loom. Good. Now we can run our wires., Let's snake, this back behind the center console area, so it's hidden and out of the way..

Then we can connect our switch to each of the connectors.. Don't worry the order you connect. These in is not important.. Just make sure the connection is good and tight.

And I'm going to add some electrical tape to each connector to make sure it's extra secure and it's shielded, so it doesn't ground out by mistake.. Ok so slide the loom all the way up to the back of the switch, so the wires are protected. Good. And finally, we can snap our center console back into place and get the shift knob on.

And let's try out this switch ... Beautiful. That is such a perfect spot for a kill, switch. Ok now, let's finish running our wire to the relay, so we can try this out.

Now, when you're running your cable down here you want to be very careful., You don't want to get in the way of the clutch, the brake or the accelerator pedal.. So you want to make sure this is up and out of the way.. So, let's get it up and over that metal, brace then up and over the steering column and finally tuck it behind the fuse box back by the relay. And now with the wiring harness up and out of the way.

So it won't get in the way of anything like the pedals. We can connect our kill, switch to the wires that go to the relay., So here we're going to use crimp, butt, connectors. And when using these, you want to make sure the copper goes all the way. In.

You don't want any copper exposed like that.. If the copper sticks out into the clear area cut it and make sure the copper goes all the way in just like that., Then we can crimp that side of the connector. And finally give it a good tug. Make sure this crimp is tight and the wire Won't come out.

And that's in there good.. Now, let's crimp the other side and it's the same process. Push the wire all the way in then crimp it and finally, we can heat shrink both sides with the heat gun.. So with that side done now, let's go.

Do the other side. We're going to follow the same exact process, get that crimp connector in there make sure there's no copper showing crimp down on it nice and tight and then double-check, to make sure it's in there good, and that is not budging.. Now we can do the same thing to the wire back here. And you can see right away.

The copper end is WAY too long. So, let's trim it., Then add the butt connector., Perfect crimp, the connector, nice and tight. Then do the pull test and that's not going anywhere. So, let's heat shrink it for a waterproof seal, and the last thing I want to do is wrap the harness in electrical tape to make it neat..

Finally, we can push the connector into the relay and make sure you hear a click. Like that.. Also, don't forget to reconnect the negative cable of the battery, so we can test out our kill switch.. Alright, with that battery connected, I didn't install the center console because, if there's any issues, it makes it easier.

We just have to pull this out to make sure we can fix whatever the issue is.. I don't plan on there being any issues, but it's a good practice when you're working on cars don't put everything back together until you test it out. And that's what we're about to do right, now. Moment of truth, we're in neutral..

I think the switch is deactivated. So it should be ready to start up.. Alright, it starts right, up., Foot off the clutch and we're good to go.. Now I'm going to shut the car., I'm going to flip our kill switch.

And I'm going to start her back up. Woo baby. Now that is what I'm talking about, and a criminal is going to be like ``, What the heck !'' ``! Why won't it start? ?'' Pumpin', the gas nothing. Flip that kill switch.

Starts right up. Oh man, that is exciting. So, let's finish this install up by adding our last center console piece. And there's a screw in here.

I'm going to tighten down to hold the console. In. Perfect, with the center console in our kill switch, is in. Going to activate that.

So nobody can go and start my car.. We are done installing the kill switch and there is one more thing to do. And that is to install a home security system to protect my tools to protect my car. Basically, everything in my garage.

And it's actually pretty cool. How I got this security system.. I posted on my Instagram asking you guys: what do you do for security systems in your car to prevent your car from getting stolen because of all these break-ins. And SimpliSafe actually commented on my post and they sent me out this entire home security system? So thank you, SimpliSafe for supporting this video and sending me out an entire security system..

So now, let's get this installed real quick. And the goal obviously is to protect the garage and the new vehicle that I'm going to be putting in the garage. Also the vehicles outside., And this is very easy to set up.. If you can put a kill, switch in your car, you can easily add another effective and reliable layer of security., Especially with these motion.

Sensors and this glass break sensor. And the feature that I've been wanting. Real bad is a security camera. And I have it pointed to the most important part, my driveway.

So I can keep an eye on all my vehicles. And I think you guys get the idea.. Now I'm going to install the rest of this off- camera, so you don't have to watch me.. I did check online because this was sent to me..

I wanted to see how the pricing was and it was pretty fair. They also have no contracts. And finally, I do have mine monitored by professionals., So if somebody breaks in, they will call the cops and the cops will come, which is good.. So all my cars, my tools, all that stuff is protected..

Now we have all the cars, I need to put kill switches in the rest of them, but all of the cars have kill switches in them, and then I have a security system ready to go. And the reason why, besides people breaking in recently, The reason why I did this ... ... was because I ended up buying my dream car.

This mid-engine beast with AWD is something I've wanted. Since I was a little kid and I had to protect it. And I will unveil my dream car in my next video, so stay tuned for that., I think you guys are finally understanding why I've been getting so crazy with the security stuff with a home security System installing kill switches in your vehicle.. I hope this video helpful.

I hope you learned how to install a simple kill, switch. Very cheap, very effective.. If the video was helpful, remember to give it a thumbs up. If you're, not a subscriber, consider hitting that subscribe button and turn on that notification bell for more how to videos like this.

And as always, all the tools and products I used in this video are Linked in the description. Stay tuned.

12 thoughts on “How to install a hidden kill switch in your car or truck (cheap anti theft system)”
  1. Avataaar/Circle Created with python_avatars crazy edo says:

    A little amount of thermite in the driver's seat will take care of car thieves or vandals. If that happend two or three times the borrough will be nice again for a certain time. Dont't forget to deactivate.😁

  2. Avataaar/Circle Created with python_avatars My Email says:

    Great video Chris! Great speaking ability too! I always think you next sentence will be the start of a Shamwow infomercial and you'll divulge your real name is Vince!!!

  3. Avataaar/Circle Created with python_avatars Timothy Strees says:

    I like this idea. My way of preventing my car from being stolen is I use map switching, I have a tune that shuts off the injectors and won't let the car start. I also have cameras that oversee the garage and the driveway that notify me if motion is detected. I am also an American who exercises his 2nd amendment rights. Yet to have anyone try and steal one of my vehicles and hope it stays that way.

  4. Avataaar/Circle Created with python_avatars Roland Ong says:

    I'm very sorry to the owner of that S2000. But that also makes the owner happy (i guess) because he can do Engine Swap, Custom Interior, Install Body Kit, etc.

  5. Avataaar/Circle Created with python_avatars Algoo says:

    I used a key switch for my car and it’s super easy cause I put it next to the ignition so I just go lock two keys in

  6. Avataaar/Circle Created with python_avatars R0b0tR0ck says:

    Your friend with the S2000 must be devastated. If I had an immaculate S2000 like that and it got stolen and parted I wouldn't know what I'd do

  7. Avataaar/Circle Created with python_avatars Rafaela Gomez says:

    Chrisfix:How to add a hidden kill switch
    Me:When I have my first car I'm gonna need it!

    Greeting from Washington USA😉

  8. Avataaar/Circle Created with python_avatars Alexander Garcia says:

    I like this idea a lot, but what if…and this is a big what if…What if you can't find a convenient spot for the switch, or you're afraid you might forget where you put it?

    Here's a way to expand on this idea: Make an access kill box. Basically line up more than one switch on a line in series, but in such a way that you have to flip them in a specific pattern of ups and downs, lefts and rights, or even both. Assuming you DO use this idea, don't use switches that are labeled to indicate on and off positions unless you can easily hide that.

  9. Avataaar/Circle Created with python_avatars Nathan Bounour says:

    Hey Chris love the video! any idea where to install the switch on a 97 ranger? Have the relay under the hood which goes straight into the harness and don’t want to cut into the actual harness if not needed.

  10. Avataaar/Circle Created with python_avatars SixFootDworf says:

    Its that right there. The story about your friend feeling hopeless, crestfallen, and unfairly taken advantage of. There are many people that feel that pain of criminal behavior. That is why I am working on becoming a Law Enforcement Officer. To help people like that, who worked hard to get something they wanted that was justly earned and rightfully owned.

  11. Avataaar/Circle Created with python_avatars Ride Alone says:

    Hello. I bought a Miata and I a have a alarm system and a kill switch. I barely found the kill switch and it still cranks.

  12. Avataaar/Circle Created with python_avatars Aim says:

    Hi chris, i tried this method, but the switch ended up burnt and broken. What causes it? Help a brother out. Thanks in advance.

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