The fuse box is located under the dash board next to the steering wheel. You need to crawl under the dash to see it. There should be a diagram showing the location and purpose of each fuse. Your owner’s manual may have a similar diagram. Find the fuse for the blower motor, pull it and inspect it. There will be a flat metal wire in a translucent, colored plastic block. If the wire is melted (disconnected) then it needs to be replaced. Other GM cars that I have provide a few extra fuses in the box in spare locations. You might be able to just plug one of those in. Even though this is also a Toyota Matrix, I expect this would still be the case.
keith, I’ve purchased aftermarket blower motors for far less than $200 - about $60, actually. Although it might coast $200 it the brshes were made to be replaced.