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Home >> Saab >> 1994 >> 900 Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> A/C Switch
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A/C Switch

When A/C is on, switch sends a signal to the fuel injection ECM. The ECM sends a signal to the Idle Air Control (IAC) valve to increase idle speed to compensate for increased load.

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