Digital Transmission Range (TR) Sensor
WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The digital transmission range (TR) sensor has a twelve-pin connector. The sensor is located on the outside of the transaxle at the manual lever. The digital sensor completes the start circuit in PARK and NEUTRAL, the back-up lamp circuit in REVERSE. The digital TR sensor also opens/closes a set of four switches that are monitored by the PCM to determine the position of the manual lever (P, R, N, (D), D, 1).