Mustang V8-4.6L SC VIN Y (2004)
Control Assembly: Description and Operation
CLIMATE CONTROL ASSEMBLY
The climate control assembly has three system controls:
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The blower motor switch controls blower motor speed by adding or bypassing resistors in the heater blower motor resistor.
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The temperature selection is accomplished with a manually-controlled blend door actuator that controls positioning of the temperature blend door.
Movement of the control knob from COOL (blue) to WARM (red) causes a corresponding movement on the air temperature control door and
determines the temperature that the system will maintain.
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The A/C heater function selector switch combines a vacuum selector valve for direct control of the vacuum control motors and electrical input to
the instrument control module.
