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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Circuit Breaker

A circuit breaker is used to protect those circuits that can experience intermittent overloads (e.g., window motor stalling). There are two types of circuit breakers; cycling and non-cycling. The non-cycling circuit breaker will reset only after the overload condition is removed, while the cycling breaker will automatically reset after a certain time period. If the overload is still present, the cycling breaker will reopen and start the cycle over again.

Circuit breakers used on Saturn vehicles automatically reset.