The Blower resistor should be tested which is located near the blower motor, the resistor is probably faulty.
replace the blower motor switch
The blower might need replacing. Normal cause is a failed blower resistor, caused by a blower fan that is failing.The resistor and fan are located above the passenger side floor behind the glove box.
blower motor resistor is burned out
The blower motor resistor pack is bad.
No such part on a 1998 Stratus.
sounds like the blower motor resistor is out on the lower speeds.
The blower motor resistor is located under the hood, in the right hand cowl, behind the windshield washer bottle.............
On the B250 van the blower resistor is located behind the passenger glove box, remove the glove box shell and resistor is located just to the right side, you can't miss it.
It's behind the glove box door
I have been working on an issue with my 2002 Dodge Ram. The blower motor and resistor are both located on passenger side under the dash. Easily accessible in cab.
Under the cowl where the wipers are. Remove that and two screws to pull resistor out.