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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System Test




Alarm inputs
All alarm-triggering components (except for terminal 15) can be checked under menu item System test/alarm inputs, whereby the alarm horn is actuated only briefly.

Passenger compartment monitoring
The function of the passenger compartment monitoring sensor can be checked under menu item System test/passenger compartment monitoring. This involves brief actuation of the alarm horn.


NOTE: The event memory must be cleared after the system test, since the test is saved in the event memory.