Fscm fuse burnt out

Do you know how to use a DVM?

Ohm it out.

Or pull the block out and trace the wire from the fuse.

But first you need to figure out why the fuse burned out. Otherwise, any new fuse you install (by whatever method) will also burn out, unless you make it a really big fuse in which case the wires or whatever the fuse is sending power to will burn out instead.