Hello, I have a 2006 Trailblazer LS 4WD. Two weeks ago my blow motor stopped spinning during a long drive. It will not spin on any speeds (1,2,3,4,5). I replaced the blower motor, tested the fuse, replaced the blower motor resistor, and then checked for a ground issue by running a wire from the resistor to ground. None of these have fixed my problem. I have confirmed that there is an issue that current is not getting to my blower motor for some reason. However, the ground seems to be okay, and the fuse is not blown. Could it be the switch in the dash? Could the switch have gone bad and not be giving current to the motor? Any thoughts and ideas greatly appreciated.