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Home >> Geo >> 1994 >> Tracker Base, 1.6 U, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Park/Neutral Switch (Tracker A/T)

Park/Neutral Switch (Tracker A/T)

On A/T applications, ECM monitors switch position and receives a voltage signal when transmission is in Park or Neutral positions. ECM uses this input signal to help control fuel injector time and Idle Air Control (IAC) valve operation.