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Home >> Cadillac >> 1993 >> Seville Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Park/Neutral (P/N) Switch
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Park/Neutral (P/N) Switch

This switch is connected to transmission gear selector. The switch signals ECM when transmission is in Park or Neutral. Information from P/N switch is used by ECM for determining control of ignition timing, converter clutch and idle speed. To check function of P/N switch, perform functional check of switch. See I - SYS/COMP TESTS article in this section.

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