Digital Transmission Range (DTR) Sensor

DESCRIPTION
The 4R70W uses both the analog Transmission Range sensor (TR) and the Digital Transmission Range sensor (DTR). The most obvious difference is that the TR sensor has an eight pin connector and the DTR sensor has a twelve pin connector.

The Digital Transmission Range (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 back-up lamp circuit in REVERSE and the neutral sense circuit 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).

SYMPTOMS
Engagement concerns, wrong gear, no shifts, increase in EPC pressure.

DTCs
P0707, P0708, P1705.