Blower fan not getting power

[Mgarrison]

I checked the fuse inside panel. I replaced the relay and the 40w square fuse inside the relay box. When I got the motor out and applied jump wires the motor works fine. No power at the harness to the blower. I swapped out the resistor about 3 months ago. Because it only worked on setting 4. Now nothing... options....opinions

 

[Billwill]

I checked the fuse inside panel. I replaced the relay and the 40w square fuse inside the relay box. When I got the motor out and applied jump wires the motor works fine. No power at the harness to the blower. I swapped out the resistor about 3 months ago. Because it only worked on setting 4. Now nothing... options....opinions

What year/model is your Jeep?

You can download the Service Manual for your Jeep, except 2004, here..they include the wiring diagrams: Index of /manuals/Jeep/KJ

I will have a look at the logics for you and get back to you.