Dakota 2WD V8-4.7L VIN J (2005)
Oil Pressure Sender: Description and Operation
SWITCH - OIL PRESSURE
DESCRIPTION
The 3-wire, electrical/mechanical engine oil pressure sensor (sending unit) is located in an engine oil pressure gallery.
OPERATION
The oil pressure sensor uses two circuits. They are: A signal to the PCM relating to engine oil pressure A sensor ground through the PCM's sensor
return
The oil pressure sensor returns a voltage signal back to the PCM relating to engine oil pressure. This signal is then transferred (bussed) to the
instrument panel on a CCD bus circuit to operate the oil pressure gauge and the check gauges lamp. Ground for the sensor is provided by the PCM
through a low-noise sensor return.
