Sable V6-183 3.0L DOHC VIN S MFI (1997)
Control Assembly: Description and Operation
Control Assembly, HVAC
With Air Conditioning
CLIMATE CONTROL ASSEMBLY
These vehicles group together the following systems into a single integrated control panel:
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AM/FM stereo radio
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clock
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rear window defroster switch
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climate control
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optional full-logic cassette
The climate control assembly has three control knobs:
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The air flow control or function selector knob, attached to the A/C-heater function selector switch, controls vacuum and electrical applications.
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The temperature control knob, attached to the potentiometer, controls the position of the A/C electronic blend door actuator mounted on the
A/C evaporator housing.
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The blower motor control knob, attached to the A/C electronic blend door actuator, provides four speeds of blower motor operation.
Air Flow Control
Air flow control is accomplished in the following manner:
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Primary control is through the function selector knob mounted on the A/C-heater function selector switch, which is part of the integrated
control panel.
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The function selector knob has the following positions: OFF, MAX A/C, A/C, PANEL, PANEL/FLOOR, FLOOR, FLOOR/DEFROST and
DEFROST The A/C-heater function selector switch combines a vacuum selector valve with an internal electrical switch.
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The vacuum selector valve directs source vacuum to various vacuum control motors.
