This is what someone with absolutely no knowledge of info you can bed from those ports is.

So just to name a few:

Battery temp, cell resistance, charge level of each cell, throttle position, abs info, wheel rpm, blendor actuator position, ac activation, heater power draw, "and more".

Imagine having a computer you could never run diagnostics of any kind on, or even get to check into what you thought was wrong. That's half of what an EV is.