attesa will do a sensor check after the car has started . if wheel speed sensors dont read zero it will pack a sad . thats how on the r32s you could just turn it off and back on while rolling and itd go 2wd . well it did on every other attesa . which would couincide with the time taken to start it and hold brake on and put it in drive . my c34 hicas will throw a light if i start it and crank it 3 or 4 locks straight away