Was just thinking if you had a led in the ev sw that was wired to a positive feed and then the other wire from the led to the pin 27 (grnd) wouldn't that make the led light only when in ev mode then when it is out of ev mode it would break the circuit and led would be off. sound feasible?
Nope, it's just a momentary ground that activates EV mode, no signal or anything feeds back from PIN 27.
Yeah it sounded too easy... then I thought about it and it is only a 2-3 second hold on my cc stalk to engage it. oh well