Having just gone through the "blower motor thing" with my 2000 TJ, I suggest you next check the connector at the blower motor which I believe, like mine, is behind the battery. Remove the battery and the module behind the battery and you will see the blower motor. The plug is on the right and you might try wiggling it with the motor on and see what happens.
If nothing happens you can pull the blower motor, three screws and jump 12 volts to the motor - black is ground - to see if it runs. You might also tap on the motor to see if it will start and if it does might indicate bad windings in the motor.
All of this does not allay the possibility of melted wires at the climate control module (which I also had).
Also, the connector to my motor was corroded, I cleaned it yet it still ran on high once so I cleaned it again. Running fine since then.
And, if you want to replace the plug the same blower motor is in a 97-07 Cherokee so if you have access to a bone yard you can get a connector to splice in. I picked up one in case my motor acts up again.
Hope this helps.