Quote: I wonder if that's some sort of initialization thing. I haven't had any issues with mine. Andy and Kirk haven't had any problems with theirs. All of ours came out of wrecked cars. I'll see if there are any techs working tonight. Most of them have gone home by now.
it seems to me they don't want full system voltage to the fan. they're asking people to do a PWM (pulse width modulation) test, so i'm guessing the fan is more than one speed (or variable speed) and is supposed to be controlled by one of the ecu's in the car.
