System Airflow
The auxiliary climate control system has the following features:
- The auxiliary blower motor recirculates the air inside the vehicle. Outside air is not available to the auxiliary climate control system.
- Air is cooled and dehumidified by the auxiliary evaporator core only if the main (front) climate control assembly is adjusted to a position that requires A/C compressor (19703) operation.
- The temperature blend door and the air distribution door are controlled by electronic actuator motors (19E616).
- Movement of the auxiliary temperature/mode control between COOL/ROOF and WARM/FLOOR causes a corresponding movement of the temperature blend door to mix air flowing through and around the auxiliary heater core and also causes a corresponding movement of the mode door to the ROOF and FLOOR positions.