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Home >> Cadillac >> 1989 >> Seville STS >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - DFI >> Operation >> Data Sensors >> Park/Neutral Switch (P/N)

Park/Neutral Switch (P/N)

The park/neutral switch sends a signal to the ECM when placed in Park or Neutral. The ECM uses this signal to stabilize idle speed.

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