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

Heating and Ventilation




There are four controls for the heating and cooling system. They are:

1. Air flow control.
This is used to direct the flow of air. Air can be directed to the floor, dashboard outlets, or windshield. Five symbols are used to represent Face, Bi-Level, Floor, Floor-Defrost and Defrost air positions.
2. Air intake control.
This allows you to select fresh outside air or recirculation inside air.
3. Fan speed control.
This is used to turn the fan on and select the fan speed.
4. Temperature control.
This is used to turn the heating system on and off and to select the degree of heating or cooling desired.