Control System Inputs

Control System Inputs




Climate Control assembly

The climate control assembly has three system control inputs:

Function Selector Switch
The function selector switch combines a vacuum selector valve that determines air distribution and an electrical switch to supply battery voltage to the A/C compressor circuit and the blower motor circuit When the function selector switch is in the MAX A/C, A/C, A/C RECIRC, FLOOR/DEFROST or DEFROST positions, the A/C compressor will be operational. The function selector switch can be replaced separately from the climate control head unit.

Temperature Control Switch
The temperature control switch setting determines air temperature. Temperature selection is accomplished through a cable connected to the temperature blend door. Movement of the temperature control switch from COOL (blue) to WARM (red) causes a corresponding movement of the temperature blend door and determines the air discharge temperature that the air distribution system will maintain. The temperature control switch can be replaced separately from the climate control head unit.

The rear defroster button signals activation of the heated backlight. The rear defroster button is replaced separately from the climate control head unit.

Blower Motor Switch
The blower motor switch controls blower motor speed by adding or bypassing resistors in the blower motor switch resistor in all function selector switch positions except OFF. The blower motor switch can be replaced separately from the climate control head unit.