I have (2) 2001 Cherokees and the blower on one has quit working. I swapped the relay from one to the other.(no fix). Then I swapped the control module still no fix. all swapped parts work fine in the other vehicle. Any help would be appreciated.
Mike

I've read alot about the wiring getting loose...no reason. Plus it may be worth checking the fuse...often we overlook the easy solution. Me, I start with easy because after that Im out of options. lol

Did you check the wiring connectors on the one that did not work?

My 87 did the same thing, and when I pulled the control section out of the dash panel, I noticed that one of the wires had burned and melted. Once I corrected that, the blower works as it should.

Mike

Same thing happened to me . Replace the blower motor.Period.. Autozone has it for about $39.00