Auto Air Conditioning & Heater Repair: fan motor, hi doug, 2004 dodge 2500

Question
the fan on my 2004 dodge 2500 does not work on the lowest 2 speeds could it be the switch or the resiter and how do i replace either one

Answer
HI Doug
Definitely the resistor.  Look under the dash on  the passenger side you will find the blower motor.  Once you have located it then look for a connector that has many cable on it at the blower case.  That is your resistor order it from the dealer and replace.