Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD1994TAURUS V6-182 3.0L DOHC SHOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - HVACCONTROL MODULE HVACDESCRIPTION AND OPERATIONELECTRONIC CLIMATE CONTROL MODULE
1994 Ford Taurus V6-182 3.0L DOHC SHO
Electronic Climate Control Module
1994 Ford Taurus V6-182 3.0L DOHC SHOSECTION Electronic Climate Control Module
Control Assembly
The EATC control assembly is located in the instrument panel and consists of:
^ 11 push buttons.
^ A variable blower speed control knob for manual input.
^ A Vacuum Fluorescent Display (VFD) for displaying the set temperature, the ambient temperature, the function, and the diagnostic codes.
When the system is operating under AUTOMATIC control, the VFD display will show the preferred or target temperature to which the elements of the automatic control system respond.
^ The A/C blower motor speed, under automatic control, varies in response to the ambient temperature changes and a predetermined delay factor.
^ Temperature selection may be raised or lowered in one degree increments between 18° C (65° F) and 29° C (85° F) by pressing the red button to raise or the blue button to lower the desired temperature. The system will respond accordingly.
Other control assembly features include:
^ A 16° C (60° F) setting for maximum cool and a 32° C (90° F) setting for maximum heat.
^ An OUTSIDE TEMP button which, when pressed, will display the air temperature outside the vehicle for four seconds.
^ An OFF button which, if pressed, will apply vacuum to close the A/C air inlet duct door, shut off the A/C blower motor operation, and discontinue the climate control functions through the system.
When the thumbwheel control for the A/C blower motor is rotated out of the position it occupied under automatic control, it will remain under manual control until the automatic button is pressed.
^ Under automatic control, the A/C blower motor speed varies as required to accommodate the total automatic functions in the system.
^ Under manual control, the A/C blower motor speed is constant based on the thumbwheel setting.
An illumination bulb in the control assembly provides backlighting for the VFD window. When the rheostat on the headlamp/parking lamp switch is rotated, the intensity of the light from this bulb will increase or decrease depending upon the direction of rotation. (The backlighting on the control assembly, as well as in other instrument panel locations, will dim whenever the light switch is engaged.)
EATC Control Assembly:
The EATC control assembly is located in the instrument panel and consists of:
^ 11 push buttons.
^ A variable blower speed control knob for manual input.
^ A Vacuum Fluorescent Display (VFD) for displaying the set temperature, the ambient temperature, the function, and the diagnostic codes.
When the system is operating under AUTOMATIC control, the VFD display will show the preferred or target temperature to which the elements of the automatic control system respond.
^ The A/C blower motor speed, under automatic control, varies in response to the ambient temperature changes and a predetermined delay factor.
^ Temperature selection may be raised or lowered in one degree increments between 18° C (65° F) and 29° C (85° F) by pressing the red button to raise or the blue button to lower the desired temperature. The system will respond accordingly.
Other control assembly features include:
^ A 16° C (60° F) setting for maximum cool and a 32° C (90° F) setting for maximum heat.
^ An OUTSIDE TEMP button which, when pressed, will display the air temperature outside the vehicle for four seconds.
^ An OFF button which, if pressed, will apply vacuum to close the A/C air inlet duct door, shut off the A/C blower motor operation, and discontinue the climate control functions through the system.
When the thumbwheel control for the A/C blower motor is rotated out of the position it occupied under automatic control, it will remain under manual control until the automatic button is pressed.
^ Under automatic control, the A/C blower motor speed varies as required to accommodate the total automatic functions in the system.
^ Under manual control, the A/C blower motor speed is constant based on the thumbwheel setting.
An illumination bulb in the control assembly provides backlighting for the VFD window. When the rheostat on the headlamp/parking lamp switch is rotated, the intensity of the light from this bulb will increase or decrease depending upon the direction of rotation. (The backlighting on the control assembly, as well as in other instrument panel locations, will dim whenever the light switch is engaged.)
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.