Hi I am a new member and I have a problem. We have a 2010 Dodge Caravan and the heater/ac fan will not blow. We have tested the motor and it is fine. I thought maybe it was the reaistor. Tested the plug into the resistor and all 4 wires on harness have power. Is this normal? Could it be the resistor? There is power to the blower line. Has anyone run into this problem, is there something else we can check?