Originally Posted by harrumphicus
Probably not safe to switch on FWD while moving, is it?
It is safe to switch them on & off but it isn't safe to leave the FWD function on at high speeds. The solenoid was not designed to handle 100% duty cycle (but for some reason, the natural split in our autos is 90/10, so does that mean that the solenoid is at 90% duty cycle?) & there have been reports of people burning out their Duty Cs by leaving it on all the time.