I have a 1994 Dodge Dakota 4x4 and last week the heater blower stopped working. I've tested the fuse block and the fuse in the distribution panel and have power and fuses are good. I have power to the blower motor. Also checked the fan resistor located on the firewall on the passenger side and all looks good and also has power. Today, I went ahead and tested the fan and works just fine. I did check the wires for the blower motor and the fan resistor using my ohm meter and no issues detected. I'm thinking it's the A/C Heater Control Assembly and need to know how one would test the electrical portion of the assembly. I'm thinking this part is going to be very hard to find.