ive got a 2006 commander that ive been chasing ghosts in. the blower motor works when it feels like it. it is the 3 knob manual system. it does not work on high, when it does work i get all speeds. i have replaced the resistor pack, it was a crispy critter. the pigtail needs to be replaced as well, but i cant get any voltage to any of the wires. this tells me maybe i have something wrong upstream?