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Newb question, can I use this to change something in the configuration of the car? I have parking sensors that are absolute garbage (overtriggering all the time), and I would like to permanently turn them off. The turn off button works only for a moment.

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I also have backup sensors that are garbage. I ended up wiring a rocker switch in the power line for the beeper/beeper control unit. When I’m backing up to connect a trailer now, I can focus on the backup cam/helper person outside without being subject to the constant beep

If a device has been produced and used, that sits inline on the can bus and changes the odometer reading, I'm pretty sure it is doable for something like reversing sensors too.

No, that would involve coding, and that is vendor specific. You can look for your car manufacturers diagnostic tools, eg mercedes star diag, or vagcom.

Thanks. Does "coding" also go through the same OBD cable?

Same port but the cable you want depends on the brand, for example BMWs use DCAN so you need a cable with a chipset that supports that protocol. They can be had for fairly cheap, I'm sure other brands are similar.

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