Digital Transmission Range (TR) Sensor
WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
The digital transmission range (TR) sensor has a 6-pin connector. The sensor is located on the inside of the transaxle at the manual lever. The digital TR sensor sends a signal to the PCM to start the vehicle in PARK and NEUTRAL. The digital TR sensor opens/closes a set of 4 switches that are monitored by the PCM to determine the position of the manual lever (P, R, N, D, L).