Digital Transmission Range (Tr) Sensor

WARNING: This page is about a different car, the 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, 2003 Ford Excursion, and 2003 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The Digital Transmission Range (TR) Sensor is located on the outside of the transmission at the manual lever.
The sensor completes the start circuit in PARK and NEUTRAL, the back-up lamp circuit in REVERSE an a neutral sense circuit for GEM control of 4x4 low engagement.
The sensor also opens/closes a set of four switches that are monitored by the Powertrain Control Module (PCM) to determine the position of the manual lever (P, R, N, (D), 2, 1).