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Home >> Chevrolet >> 2003 >> Chevy Express H2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - Theory & Operation) >> Computerized Engine Controls >> Input Devices >> Park/Neutral Position Switch

Park/Neutral Position Switch

WARNING: This page is about a different variant/trim than selected.

The Park/Neutral Position (PNP) switch is connected to transmission gear selector and signals PCM when transmission is in Park or Neutral. PCM uses this information for determining control of ignition timing, Torque Converter Clutch (TCC) and idle speed.

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