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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HVAC System Calibration

This procedure may be performed on both the ATC and MTC systems.
1. Start engine and let run.
2. If the vehicle has an ATC system, turn the control head ON.
3. Set the temperature controls to the full cold position for two minutes.
4. Set the temperature controls to the full heat position for five minutes.