Control Assembly: Description and Operation
CLIMATE CONTROL ASSEMBLYThe climate control assembly has three system controls:
- The blower motor switch controls blower motor speed by adding or bypassing resistors in the heater blower motor resistor.
- 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.
- 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.