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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System Controls



Climate Control System Control Components

System Controls
The climate control system is controlled by:
1. Manual input from the operator, via the center console located control panel.
2. Automatically by means of the A/CCM.

Output is based upon input from the following devices:
- Motorized In-car aspirator
- External air temperature sensor
- Coolant temperature sensor
- Heater 'air-off' (the temperature of the air leaving the matrix fins) temperature sensor
- Evaporator 'air-off' (the temperature of the air leaving the evaporator fins) temperature sensor
- Solar sensor
- Left hand blower recirculation/fresh air flap potentiometer
- Right hand blower recirculation/fresh air flap potentiometer
- Upper air distribution box (ADB) center and side face flap servomotor potentiometer
- ADB defrost flap servomotor potentiometer
- Air conditioning unit Foot flap servomotor potentiometer
- Air conditioning unit Cool Air Bypass flap servomotor potentiometer
- Thumbwheel controls on the facia vent assemblies which provide manual adjustment of the airflow volume.
- Road and engine speed signals input to the A/CCM