Durango 2WD V8-5.2L VIN Y (1999)
Transmission Position Switch/Sensor: Description and Operation
TRANSMISSION PARK/NEUTRAL SWITCH-PCM INPUT
The park/neutral switch is located on the transmission housing and provides an input to the Powertrain Control Module (PCM), This will indicate
that the automatic transmission is in Park, Neutral or a drive gear selection. This input is used to determine idle speed (varying with gear
selection), fuel injector pulse width, ignition timing advance and vehicle speed control operation.