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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Cyclic Check

Cyclic Check
Once the predrive check has been successfully completed and the system is ready for operation, a cyclic check for the purposes of fault monitoring is performed. The cyclic check continues to be carried out as long as the system status is Terminal R ON.
The following tests are performed as part of the cyclic check:
^ Monitoring of resistance of deployment circuits
^ Communication capability and status of components
^ Power supply