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Home >> Infiniti >> 1998 >> Q45 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Park/Neutral Position (PNP) Switch
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Park/Neutral Position (PNP) Switch

Switch is located on transmission/transaxle. Switch notifies PCM when transmission/transaxle is in Park or Neutral. Primary use is to prevent starting the vehicle in a drive gear. This signal also is used by PCM to calculate required changes in idle speed, ignition timing and injector operation.

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