Explorer 2WD V6-4.0L VIN K Flex Fuel (2002)
Control Module HVAC: Description and Operation
DATC Module
The DATC module:
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is located in the instrument panel.
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has a vacuum fluorescent display for displaying set temperature, function and Diagnostic Trouble Codes (DTCs).
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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.
Blower Motor Speed Control
The blower speed control:
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is located on the heater core and evaporator core housing near the blower motor.
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converts low power signals from the DATC module to a high current, variable ground feed for the blower motor.
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varies the blower motor speed and is controlled by the DATC module software.
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has a delay function to provide a gradual increase or decrease in blower motor speed under all conditions.
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controls the integral high blower speed relay which is engaged when maximum fan speed is selected.
