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

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Compressor Clutch Relay: Testing and Inspection

Relays-Test:




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

Blower Motor Relay/Radiator Fan Relay:




- [1][2]Blower motor relay
- Radiator fan relay

Condenser Fan Relay/Compressor Clutch Relay:




- Condenser ran relay
- Compressor clutch relay

Blower Motor High Relay:




- Blower motor high relay