Regarding car fuses most cars use a colored blade type fuse and looking at the top of the fuse in situ in the fuse box will show that the metal strip that runs along the visible top of the fuse will either be intact fuse good or broken fuse blown.
How to see if a ceramic fuse is blown.
The fuse will be one to two inches long.
This is necessary for ceramic fuses since they don t develop a blackened appearance like blown glass fuses.
It may be a glass fuse with a filament or a ceramic fuse.
It will show scorch marks and the filament will be melted.
If the fuse seems stuck use pliers for this.
To check a ceramic fuse use an ohmmeter or continuity tester.
Make sure not to induce too much pressure or you might harm the conducting surface of the fuse.
It s easy to tell if a glass fuse is blown.
To do this use a voltmeter ohmmeter.
You need to test whether the ceramic fuse has blown.
A homeowner can determine if a glass fuse in blown by performing a visual inspection and looking for a break in the thin wire and a brown discoloration in the center of the fuse.
A ceramic fuse however shows no damage upon visual inspection.