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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Clutch Slip Monitoring



Clutch-slip Monitoring

The DME/DDE compares the engine speed and transmission input speed. The difference between these speeds enables non-permitted clutch slip to be detected.

If non-permitted clutch slip is detected, the DME/DDE reduces the engine torque. In addition, a fault is entered. This monitoring is active at full load.