Transmission Range (TR) Sensor Assembly

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

The Transmission Range Sensor (TRS) Assembly is an internally mounted sensor located next to the solenoid body.
The Transmission Range Sensor (TRS) Assembly includes the detent spring, rooster comb and bracket.
The components of the TR sensor are factory adjusted and the TR sensor must be installed as a calibrated assembly.
The TR sensor contains electronic circuitry that provides the PCM a fixed frequency duty cycle for each of the various positions of the manual lever (PARK, REVERSE, NEUTRAL, (D), M3, M2 and M1) to the PCM.
The PCM uses the TR sensor signal for engine start, reverse lamps and for line pressure control, shift scheduling and TCC operation.