Kill Switch or Starter Interupt

[Hogzfan]

I have been reading about FOB cloning, and how thieves use it to steal your truck. It got me wondering if there is a circuit that can be tapped, and a small switch placed in-line. Maybe a starter relay circuit, small amps, low/no fire risk. Disconnect when I exit the truck, so even if the thief has my FOB, they would have to know my switch. Any ideas?

 

[ElkoNV]

I have been reading about FOB cloning, and how thieves use it to steal your truck. It got me wondering if there is a circuit that can be tapped, and a small switch placed in-line. Maybe a starter relay circuit, small amps, low/no fire risk. Disconnect when I exit the truck, so even if the thief has my FOB, they would have to know my switch. Any ideas?

Couldn't you just put a switch in line with the start button so the circuit cannot close if the switch was in the open position?

 

[J-Cooz]

Do you care that much about the low low chance your truck gets stolen to void your warranty by hacking into the electronics?
We have insurance for a reason.

 

[Aseras]

A switch ( or pulling ) F59 under the hood should disable the ignition, fuel injection and glow plug system. Alternatively F01 is the fuel pump motor. But they might get down the road before it stalls and ditch your ride. F40 is the starter.

It's a 25 amp clear. pg 448 in the manual. A switch wired into a piggyback micro-fuse should work as a hidden kill switch there. No permanent modifications necessary.

I haven't tried it, just looking in the manual.

 

[Richard320]

A switch ( or pulling ) F59 under the hood should disable the ignition, fuel injection and glow plug system. Alternatively F01 is the fuel pump motor. But they might get down the road before it stalls and ditch your ride. F40 is the starter.

It's a 25 amp clear. pg 448 in the manual. A switch wired into a piggyback micro-fuse should work as a hidden kill switch there. No permanent modifications necessary.

I haven't tried it, just looking in the manual.

I was studying on it, too, but I'm not sure how much a 2019 Hemi and a 2020 share. If the fues blocks are the same, that F40 starter fuse is underhood.

I was thinking of underdash F11 – 5 Amp Output to Underhood Power Distribition Center (UPDC) Run Coil. If I'm reading that right, there's some kind of relay/giant transistor in the underhood fuse block for Run fuses. Kill the trigger and kill all that stuff.

But I'm not interested enough to go unplug it and see and risk setting all kinds of codes.

 

[Hogzfan]

A switch ( or pulling ) F59 under the hood should disable the ignition, fuel injection and glow plug system. Alternatively F01 is the fuel pump motor. But they might get down the road before it stalls and ditch your ride. F40 is the starter.

It's a 25 amp clear. pg 448 in the manual. A switch wired into a piggyback micro-fuse should work as a hidden kill switch there. No permanent modifications necessary.

I haven't tried it, just looking in the manual.

Thats a good idea. I'll be in the shop tmrw, may have time to look into it. I may have to make/order a fuse insert and wire in a small switch.

 

[Richard320]

Thats a good idea. I'll be in the shop tmrw, may have time to look into it. I may have to make/order a fuse insert and wire in a small switch.

Pull the fuse and see what happens before you waste any time on that. I could be way wrong.

 

[Hogzfan]

 

[Hogzfan]

Agree. I will check it out completely.

 

[A-TEAM]

Was any more information discovered? Were you successfully able to add the kill switch?