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Home >> Saab >> 1995 >> 9000 CS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Controls - Theory & Operation) >> Computerized Engine Controls >> Input Devices >> A/C Switch

A/C Switch

WARNING: This page is about a different car, the 1996 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.

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.