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Home >> Pontiac >> 2003 >> Aztek AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Gear Switches
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Gear Switches

Gear switches are located inside automatic transmission. Switches may be normally open or closed, and change status depending upon internal hydraulic pressures. PCM uses high gear switch information in controlling emission components and engagement of Torque Converter Clutch (TCC).

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