Re: CAN bus reachable from the outside
True, modern cars do have lots of sensors and actuators that could be accessed from the outside of the car. Those will not be on the same CAN bus as the powertrain devices. Cars havent had "A" (as in a singular) CAN bus for decades. Modern cars can have over 20 CAN busses (plus automotive Ethernet and a grab bag of LIN, FlexRay, MOST, etc.).
Biting the hand that feeds IT
