Auto Shutdown Relay / Kill Switch

[Snadler]

Does anyone know what color wire inside the cab and where i would find it for the auto shut down relay? I want to install a kill switch that does more than stop the starter or the fuel pump. What are you guys thoughts on simply pulling the ign fuse and switching that circuit with multiple switches for a combination like kill switch? Any other reliable simple suggestions?

 

[strumble8]

The best way to do it.

 

[strumble8]

You'll notice in the picture 2 small magnets. It uses the magnets with a small switch that you can hide anywhere you like, than you have the magnet over the switch and it engages the relay. The relay intercepts the asd circuit under the hood

 

[Snadler]

I saw this but would I need to keep the magnets handy to use it? Was hoping to not have anything extra to deal with if possible.

 

[Jorge Bolivar]

See from @CodaMan

Setting up a kill switch (hidden in plain sight)

He point some wiring, maybe the ones you looking for.

 

[Jerry Bransford]

This is an easy thing to do. The ASD relay is inside the Power Distribution Center on the passenger-side fender well, directly in front of the battery. Unbolt it so you can get to the wiring underneath it that leads to the ASD relay.

There is a dark blue wire with a yellow tracer in it that connects the ASD relay to the PCM (computer). Cut that wire several inches away from where it connects to the relay mounting base. Give yourself enough wire length to work with. Very carefully splice a pair of wires to the two cut ends of that wire. Be sure to use good splicing technique, I would solder the connections and slide heat-shrink tubing over the splices. Do a good job here, take your time as this is not where you want to do a bad job... this is a critical circuit for the Jeep. If you botch it up the Jeep won't start.

Run that pair of wires to wherever you want the defeat switch to be located, in a hidden area is my suggestion. Then connect a good quality SPST (on-off) switch to those two wires. Don't use a small cheap switch that might fall apart, use a good heavy-duty switch since you really want all of this to be ultra-reliable. Mount the switch and you're done.

 

[Snadler]

Awesome! Thank you......

I do try to solder and heat shrink most of the critical connections and any that are outside exposed to moisture. Just a good habit to be in IMO...

 

[Jerry Bransford]

One last comment... this will not make your Jeep theft proof. When my previous TJ was stolen ten years ago they didn't even try to start it. The thieves used a flatbed tow truck to drag my TJ out of its parking space at my office. A witness, who had no idea it was being stolen, said they were gone with my Jeep in under two minutes.

 

[Snadler]

One last comment... this will not make your Jeep theft proof. When my previous TJ was stolen ten years ago they didn't even try to start it. The thieves used a flatbed tow truck to drag my TJ out of its parking space at my office. A witness, who had no idea it was being stolen, said they were gone with my Jeep in under two minutes.

Terrible way to end the day!
If they truly want it there will be no stopping them. Some people set up a relay to engage the horn if the kill switch is not correctly engaged and someone tries to engage the starter which at least might give you time to get the 9mm!

 

[TheGanzman]

One last comment... this will not make your Jeep theft proof. When my previous TJ was stolen ten years ago they didn't even try to start it. The thieves used a flatbed tow truck to drag my TJ out of its parking space at my office. A witness, who had no idea it was being stolen, said they were gone with my Jeep in under two minutes.

Yep, that's how the highline pros do it! Back in 1979 when I lived in a large apartment complex in Charlotte NC, I happened to get up REAL early one Saturday AM (in truth, I was prolly still UP from the night before, LOL) and there was a rollback in the throes of pulling my 1971 Corvette up onto the deck. I ran back upstairs, grabbed a pistol, and went back down with the butt of it displayed sticking out of the waistband of my sweatpants. I queried the tow truck driver (~6'4" and ~280 pounds) as to why he was towing MY Corvette away - he claimed that he had a call from someone to get "his" Corvette out of the parking lot and deliver it to XYZ address. I advised him that the course of action that he was pursuing might not be in HIS best interest - he gruffly agreed and aborted...

It goes w/o saying that I found "other arrangements" for the parking and storage of that car. After reporting the incident to The Boys In Blue they proceeded to track down the guy; turns out he was part of a theft ring that had stolen SEVEN Corvettes out of THAT very parking lot over the last 18 months! Vehicles are SO easy to steal; they were back then and they STILL are! If somebody wants YOUR vehicle specifically, they're gonna GET your vehicle - PERIOD! Slow 'em down as much as you can is about the best you can hope for; that and secure parking wherever/whenever possible. Finally, don't own/drive ANYTHING that you're gonna be heartbroken at the loss of, or that you consider "irreplaceable"; my .02...

 

[Snadler]

See from @CodaMan

Setting up a kill switch (hidden in plain sight)

He point some wiring, maybe the ones you looking for.

Yup, this is the type setup i am going to use only with better quality switches. Theory the same though....

 

[Jorge Bolivar]

Yup, this is the type setup i am going to use only with better quality switches. Theory the same though....

Glad you found some guide. Please try to make a write up and share with Us. This is something I was thinking on do once but I do like something that does not allow the Jeep to move is the TC is placed on Neutral.

 

[TJ2]

This is an easy thing to do. The ASD relay is inside the Power Distribution Center on the passenger-side fender well, directly in front of the battery. Unbolt it so you can get to the wiring underneath it that leads to the ASD relay.

There is a dark blue wire with a yellow tracer in it that connects the ASD relay to the PCM (computer). Cut that wire several inches away from where it connects to the relay mounting base. Give yourself enough wire length to work with. Very carefully splice a pair of wires to the two cut ends of that wire. Be sure to use good splicing technique, I would solder the connections and slide heat-shrink tubing over the splices. Do a good job here, take your time as this is not where you want to do a bad job... this is a critical circuit for the Jeep. If you botch it up the Jeep won't start.

Run that pair of wires to wherever you want the defeat switch to be located, in a hidden area is my suggestion. Then connect a good quality SPST (on-off) switch to those two wires. Don't use a small cheap switch that might fall apart, use a good heavy-duty switch since you really want all of this to be ultra-reliable. Mount the switch and you're done.

View attachment 78735

That's easy for you to say

 

[Allstar424]

You'll notice in the picture 2 small magnets. It uses the magnets with a small switch that you can hide anywhere you like, than you have the magnet over the switch and it engages the relay. The relay intercepts the asd circuit under the hood

I use this system as well. Relatively easy to install and great peace of mind! But like Jerry has experienced, it isn't totally theft proof.

 

[dbbd1]

And don't be afraid to think out of the box...

Like a panel mounted "headphone" jack that you plug a headphone plug (that's shorted internally) into, instead of a switch. What thief is going to look at that and say "hmm, is that why it won't start?"

 

[Jerry Bransford]

And don't be afraid to think out of the box...

Like a panel mounted "headphone" jack that you plug a headphone plug (that's shorted internally) into, instead of a switch. What thief is going to look at that and say "hmm, is that why it won't start?"

That's a great idea.

 

[HuskerJeep]

Edit: Nevermind, I answered my own question, removed my old post.

 

[Snadler]

Edit: Nevermind, I answered my own question, removed my old post.

Not sure? This is one for Jerry as there may be a difference in the year changes?

 

[Viking Jeeper]

This is an easy thing to do. The ASD relay is inside the Power Distribution Center on the passenger-side fender well, directly in front of the battery. Unbolt it so you can get to the wiring underneath it that leads to the ASD relay.

There is a dark blue wire with a yellow tracer in it that connects the ASD relay to the PCM (computer). Cut that wire several inches away from where it connects to the relay mounting base. Give yourself enough wire length to work with. Very carefully splice a pair of wires to the two cut ends of that wire. Be sure to use good splicing technique, I would solder the connections and slide heat-shrink tubing over the splices. Do a good job here, take your time as this is not where you want to do a bad job... this is a critical circuit for the Jeep. If you botch it up the Jeep won't start.

Run that pair of wires to wherever you want the defeat switch to be located, in a hidden area is my suggestion. Then connect a good quality SPST (on-off) switch to those two wires. Don't use a small cheap switch that might fall apart, use a good heavy-duty switch since you really want all of this to be ultra-reliable. Mount the switch and you're done.

View attachment 78735

I'm not entirely sure exactly what the ASD relay does so I need to ask: Can we use a momentary switch or does it have to stay in the on position for the Jeep to continue to run? I'm thinking of a momentary switch I can push with my left hand while turning the key.

 

[Snadler]

I'm not entirely sure exactly what the ASD relay does so I need to ask: Can we use a momentary switch or does it have to stay in the on position for the Jeep to continue to run? I'm thinking of a momentary switch I can push with my left hand while turning the key.

It must stay on to start the vehicle. A good quality SPST toggle is best......