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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A/C Relays

Relays / Test







There should be continuity between the No.1 and No.2 terminals when power and ground are connected to the No.3 and No.4 terminals, and there should be no continuity when power is disconnected.







- Condenser Fan Relay
- Radiator Fan Relay
- A/C Compressor Clutch Relay