I just had the second blower voltage divider fail on my van, and thought I would post about this.
This divider provides the multiple fan speeds, and is installed in the air conditioner intake plenum.
When I first bought the car, the connector had burned through, and the resistor was damaged.
So, I cobbled up an ersatz connector (new pigtail apparently not available from Chrysler) and installed a new resistor.
This one lasted a couple of years. The connector survived. When I removed the divider, I found that there were three nichrome coil resistors and one little ceramic unit. The ceramic unit (about 0.1 ohm resistance) apparently functions much like a fusable link, and mine was open.
I cut the thing out of the circuit, soldered a 20 amp fuseholder across the terminals (and outside the plenum), and put it back in service.
It works fine. I can , if I have another problem, just replace the fuse. This will soon tell me if the current to the blower motor is spiking and causing the ceramics to fail. It might be hard to find otherwise as it is probably intermittent.
I have an extra factory resistor, and when I am satisfied that all the kinks are out of the system, I will return everything to OEM, maybe. This seems to be a weakness with certain Dodges.
It may require a blower motor to fix it. Oddly, a motor from the dealership is $33. From NAPA or Autozone, it is considerably more expensive.
Just thought this might help someone down the line.