2003 Dodge Ram not blowing

Hello, I'd check voltage and ground at the blower motor. You can also take the blower connector loose, use jumper wires from battery posts for voltage and ground, use an inline fuse. If the blower doesn't work, faulty blower motor. If it does work ok, you'll have to back track further.

Normal working conditions, the voltage to the blower motor, is hot with the key on. The ground is controlled by the hvac controller.