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

Auto

CIRCUIT DESCRIPTION

The A/C control module receives inputs from the NC sensors (for instance,photo sensor, thermostatic switch humidity sensor, ambient sensor, etc..) and controls the function of the air conditioning system.

The A/C control module and various sensors provide accurate control of the air mixture using blend door actuator, temperature actuator and intake actuator under all operating conditions. The function of the power transistor is that of the blower resistor in manual A/C