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

Wire Type

A/C Switch Inspection (Wire Type)








1. Check for continuity between the terminals of the A/C switch.
2. Turn the A/C switch on.





3. Connect battery positive voltage and ground to the terminals of the A/C switch.
4. Verify that the light-emitting diode illuminates.
5. If not as specified, replace the A/C switch.