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Home >> Mercury >> 2004 >> Monterey V6-3.9L VIN 6 >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - HVAC >> Control Module HVAC >> Description and Operation
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Control Module HVAC: Description and Operation

ELECTRONIC AUTOMATIC TEMPERATURE CONTROL

EATC Module
The EATC module:
- is located in the instrument panel.
- has a vacuum fluorescent display for displaying set temperature, airflow direction, blower speed and diagnostic trouble codes (DTCs).
- utilizes an on-board diagnostic (OBD) feature to supply the technician with diagnostic trouble codes (DTCs). These DTCs direct the technician to the inoperative component.
- display will switch between Celsius and Fahrenheit when the instrument cluster display is toggled.
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