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Originally Posted by 03b0x
its a little plastic piece. when the fuse is plugged into the fusebox you can simply just plug this little plastic piece into the holes in the top of the fuse when its plugged in and it will light up when its fine, and won't light up if its blown. you can pick one up at any autoparts place, usually comes with spare fuses!
comes in handy alot as one time i had a blown fuse and the fuse just barely blew, you couldn't even tell with your eye but when you used the little mechanism it sure told the truth!
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Hi,
Yes these things do work and can be handy. But, I don't use one - don't need another tool, especially one which duplicates a tool I already have.
I use the test leads on my multimeter, set for Continuity, using the same test holes on the tops of the fuses. This does the exact same thing except audibly, not visually. If the Fuse is good, I get a Beep, if not, no sound...
Happy Motoring!... Jim'99