HVAC Control Module

The HVAC control module is on the MS-CAN and does set Diagnostic trouble Codes (DTCs).

The temperature control switch adjusts the discharge air temperature. Movement of the temperature control from cool to warm causes the temperature door to move. The position of the temperature door determines the discharge air temperature. The EMTC temperature control selector is an integral part of the HVAC control module and cannot be serviced separately.

The EATC temperature control selector is an integral part of the SYNC touchscreen display.

The airflow mode setting adjusts the discharge air outlet location. Each airflow mode selector icon causes a corresponding movement of the airflow mode doors and determines the discharge air outlet location. The EMTC airflow mode selector knob is an integral part of the HVAC control module and cannot be serviced separately.

The EATC airflow mode selector is an integral part of the SYNC touchscreen display.

The A/C button determines A/C compressor operation, except when the temperature selector is set to MAX A/C or the airflow mode selector is in defrost mode. The EMTC A/C button is an integral part of the HVAC control module and cannot be serviced separately.

The EATC A/C button is an integral part of the SYNC touchscreen.

The recirculated air request button can be activated in any mode except defrost and MAX A/C. The recirculated air request button is an integral part of the HVAC control module and cannot be serviced separately.