buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Refrigerant Pressure Sensor / Switch, HVAC > < Oil Pressure Switch (For Fuel Pump)|Locations|Page 328
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Air Conditioning Switch: Description and Operation

Wiring Diagram For A/C Clutch Control

This signal indicates that the A/C control switch is turned "ON" and the pressure switch is closed.  The computer uses this signal to adjust the idle speed,
and on some models engages the A/C compressor clutch.

Refrigerant Pressure Sensor / Switch, HVAC > < Oil Pressure Switch (For Fuel Pump)|Locations|Page 328