Digital Transmission Range (DTR) Sensor
WARNING: This page is about a different car, the 2003 Mazda B4000, 2002 Mazda B4000, 2002 Mazda B3000, 2001 Mazda B4000, and 2001 Mazda B3000. However, it is still accessible from the selected car via links, so may be relevant.
The DTR sensor is located on the outside of the transmission at the manual lever. The DTR sensor completes the start circuit in PARK and NEUTRAL, the reversing lamp circuit in REVERSE and the neutral sense circuit (4X4 only) in NEUTRAL. The DTR sensor also sends a digital output signal to the Powertrain Control Module (PCM) indicating the position of the manual lever (P, R, N, D, 2, 1).