RAM 2500 Truck 2WD V8-5.2L VIN Y (2000)
Fluid Pressure Sensor/Switch: Description and Operation
GOVERNOR PRESSURE SENSOR
Fig. 66
The governor pressure sensor measures output pressure of the governor pressure solenoid valve (Fig. 66).
The sensor output signal provides the necessary feedback to the powertrain control module. This feedback is needed to accurately control pressure.
The unit is an absolute pressure device and the output is calibrated to be 0.35 to 0.65 volts at 14.7 psi (normal barometric pressure). Since this is
an absolute pressure device, 0 psi calibration is required often to compensate for changing atmospheric pressure or altitude. This voltage measured
at 0 psi is referred to as zero pressure offset.
