Does anyone know what the resistance should be for the a/c blower motor resister? I pulled it and read 5 ohms between pins 1 and 3 and nothing between 1 and 2 or 2 and 3. is this normal? I check the voltage to the blower motor and get around 11.5 vdc. I check between the post on the blower motor and get a short. Is this normal?