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Home >> Chevrolet >> 2002 >> Prizm Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Transaxle Range Switch Signal
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Transaxle Range Switch Signal

PCM monitors a voltage signal sent from Transaxle Range (TR) switch to monitor transaxle range (gear selection). PCM uses this signal to control fuel injectors, Idle Air Control (IAC) valve and automatic transaxle performance.

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