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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Fuel Level Stuck Monitor



Fuel level stuck monitor
The fuel level is monitored continuously and it needs to change by more than a set % before a calculated amount of fuel is used. This process will operate through cumulative trips if necessary. Once the fuel level changes by the amount required the process is reset and begins again. If the fuel used threshold is reached before the fuel level changes by the required % a temporary fault will be stored. A second occurrence will cause the MIL to be illuminated.