Lots of stories recently about thieves entering a vehicle, plugging a programmer into the OBDII port, programming a key and off they go - in a couple minutes or less. I know that our vehicles have a long delay - perhaps an hour, but is that a feature of the programmer (like Forscan), or of the PATS code in the PCM itself? Does anyone know?
It seems fairly impossible to do that, that quickly. Even if PATs reprogramming were instantaneous, they're not going to happen to have a compatible lock cylinder, matching keyed key, and be able to swap them in, in a couple minutes. Maybe pick the lock cylinder instead (or force-break it) and duct tape the head of a new programmed key to it.
I don't see it happening, a thief with this skill set and level of pre-planning, would pick a more valuable vehicle, while kids just looking to go on a joyride, won't know what to do.
Anybody has an old fashion fuel pump kill switch for sale?
A fuel pump, or ignition, etc kill switch is not needing some proprietary switch specific to that application. Just mount your choice of single pole switch, rated for same o r higher DC amps the fuse on that circuit uses, on whatever circuit you want to interrupt. If the circuit powers multiple things then the switch wouldn't necessarily need to be same or higher amps as whole circuit, if you can determine max current of the subsystem you're cutting power to, through specs or series multimeter (or DC clamp meter) measurement.
You could also, or instead, do this to the OBD2 port so a thief can't get communication through it, then you don't have to flip the switch on and off every time you drive and park it, and a smaller/cheaper 1A rated switch would be more than capable too.
If a thief were to bring a compatible PCM with PATS2 programmed out... I'd wonder what you're doing wrong in life to be targeted like that, because otherwise it's practically unheard of for any vehicle that isn't worth an obscene amount of money, and a lot more work than just bringing a tow truck to take it.