OBD2 port question 2016 CR-V

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I am going to install inline fuse holder(s) with blown fuses in each fuse holder in some wires for the OBD2 port of my 2016 CR-V EX as an additional security measure.

If someone wanted to use the OBD2 port to take the vehicle either by programing a new fob or directly accessing start and run if that can be done, what wires should I be disconnecting to insure theft in this way can not be done?

I bought a mini fuse kit that has 10 fuse holders and I could use all 10, but I would rather just do the required ones.

I think I cam access the wires to the OBD2 port as they run to a connector behind the glove box and then hide these fuse holders simply by putting the glove box back in place. And of course if I will put good fuses in those fuse holders for inspection or if I ever have to use my code reader.

I would like to minimize the number of fuse holders I install. So the real question is what are the critical wires and there corresponding OPD2 port pin numbers?
 
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They don't need the OBD2 port to code a new key fob, in fact to steal it the OBD2 port is not even needed. You are wasting your time.

https://news4sanantonio.com/news/in...ce-to-steal-your-key-fob-signal-then-your-car

I keep my fob inside of a silver jewelry box that is kept tightly closed by two rubber bands, and that is kept inside of a cookie tin. Shielded like that the signal from the fob is well blocked. It can be held next to the vehicles door antenna and the vehicle does not recognize it. The jewelry box or the cookie tin alone without the other are not enough to block the fob signal. But using both does block it.

So, I have the fob signal well hidden from thieves. But that leaves using the OBD2 port to steal it with. And some thieves do use the OBD2 port to clone a fob or enable them to start a vehicle.

So I'm still interested in disabling the OBD2 port by temporally opening wire(s) ( by installing inline fuse holders with blown fuses ) that are used for signals to travel to and from that port.

I have seen videos where it is demonstrated that a thief can clone a fob by using a system that connects to the OBD2 port, instead of using a received signal from the owners fob.

Thanks for the reply, but disabling the port inside my vehicle is not a waste of time. Maybe with some newer vehicle it might be now days, because some have the can-bus available on ports on the front bumper under a small door for repossessions, and some have the can-bus ran to front light where a thief can simply break a front turn signal lens and access the can-bus port. Fortunately for me, the lights on my vehicle don't have the can-bus ran to them, and my vehicle does not have a bus port behind a small plastic door on its front bumper.

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So if anyone know what signal name and or pin number of the OBD2 port would be the ones to disable I still interested?
 
Please link these videos. You can't start a car through the OBD port unless something is connected to the port such as a diagnostic tool. Even then I don't know of any vehicles that can be started through that port unless some hacker reprograms the ECU to allow it to happen. And then you'd still have to send OBD commands which don't come from a fob.

A fob starts the vehicle in an entirely different way than through the OBD port.

So if anyone know what signal name and or pin number of the OBD2 port would be the ones to disable I still interested?
There isn't one.
 
Im not sure if that you are trying to accomplish but I found this online and hope it helps

Screenshot_20250623-122311.webp
 
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