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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Mode Control Switch Test






MODE CONTROL SWITCH (BUTTON TYPE ONLY)
1. Disconnect the 14P connector from the heater control panel.
2. Check for continuity between the terminals of the heater control panel according to the table in illustration.