Transmission Range (TR-P) Sensor Assembly

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