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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Vent Mode




When Vent mode is selected, air enters the module and flows through the evaporator. The air then passes through the mode valve and out through the instrument panel outlets.

The air may be warmed by directing some or all to pass through the heater core by adjusting the temperature knob to the desired heat level.