Neon L4-2.0L VIN C (1998)
Transmission Position Switch/Sensor: Description and Operation
Fig. 20 Park/Neutral Switch
OPERATION
On vehicles with 3-speed automatic transmission the park/neutral switch provides an input to the Powertrain Control Module (PCM).
The park/neutral position switch is located on the automatic transaxle housing Fig. 20. Manual transaxles do not use park/neutral switches. The
switch provides an input to the PCM to indicate whether the automatic transaxle is in Park/Neutral, or a drive gear selection. This input is used to
determine idle speed (varying with gear selection) and ignition timing advance. The park/neutral input is also used to cancel vehicle speed control.
The park/neutral switch is sometimes referred to as the neutral safety switch.
