Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Fuse: Testing and Inspection



Checking a blade fuse





On every blade fuse there are test sockets that make it possible to check whether the fuse is good without having to take it out of the fuse box. If there is a voltage on both sockets the fuse is good.
If the fuse is out of the box, you can see whether the wire has blown.