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Park/Neutral Position Switch

NOTE: Park/Neutral Position (PNP) switch may also be referred to as manual shaft shift position switch. Adjust switch so engine starts with transmission in Park or Neutral only.
  1. Apply the parking brake. Position the selector to Neutral. Raise and support the vehicle. Remove the manual shaft shift position switch shield. Remove the nut form the range selector lever. Disconnect the shift position switch electrical connector.
  2. Connect ohmmeter between switch terminals "E" and "H" (Red/Black wires). Loosen manual shaft shift position switch bolts. Rotate switch slightly in both directions to determine range of continuity (about 5 degrees). See Fig 1 .
  3. Position manual shaft shift position switch in middle of contact range. Tighten manual shaft shift position switch bolts to 106 INCH lbs. (12 N.m). Remove the multimeter. Install the shift position switch wire harness connector. Use a plastic tie strap if the connector clip is broken. Install the range selector lever. Tighten selector lever nut to 71 INCH lbs. (8 N.m). Install the shift position switch shield. Lower the vehicle.
Fig 1: Adjusting Manual Shift Shaft Switch
G00087677Courtesy of GENERAL MOTORS CORP.
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