Sentra SE-R Spec V L4-2.5L (QR25DE) (2002)
Transmission Position Switch/Sensor: Description and Operation
PNP SWITCH
Component Description
When the shift lever position is "P" (A/T models only) or "N", park/neutral position (PNP) switch is "ON". ECM detects the position because the
continuity of the line (the "ON" signal) exists.