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)

Or, hide this message: temporarily or permanently

A/C Switch




- Press A/C button (2) and check if there is continuity between terminals "D" and "G".
- With battery voltage (+) connected to terminal "K" and (-) to terminal "D", press A/C button (2) and check if indicator lamp (3) lights.