I don't have access to any shematics. If there is no power at the fuse, start tracing that wire back to its source which ends up eventually being the battery. I realize the battery is most definately fine but the problem obviously exists between the fuse box and the battery. To confirm this, try jumping around from the battery to the ground side of the fuse ( make sure you use the fuse inline with that wire ). If the blower motor works, you have just confirmed that the problem is with the power source to the fuse.

It is not ideal, but if you CANT figure out the problem and nothing else seems to be affected it can be a solution to jump a fused power wire to the fuse terminal. Sometimes it can be alot easier than finding the broken wire. Make sure you fuse the jumper wire to prevent fires.