Oil Pressure And Temperature Sensor

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.

The oil pressure and temperature sensor is located at the rear left on the engine in a threaded port in the oil filter housing assembly.

The oil pressure and temperature sensor has a three pin connector. One pin supplies a 5 V reference voltage from the Powertrain Control Module (PCM), the second pin is a ground connection. The third pin provides an oil pressure and temperature output to the PCM.

The sensor provides a Pulse Width Modulation (PWM) signal that contains information about the self-diagnosis of the sensor, pressure and temperature. The pressure is measured using a piezo-resistive pressure cell and the temperature is measured using an integrated diode.

The sensor measures pressure between 0.5 bar (7.25 lbf/in² ) to 10.5 bar (152.28 lbf/in² ) and temperature between -40°C (-40°F) to +160°C (320°F).

The PCM outputs the engine oil pressure state on the High Speed (HS) Controller Area Network (CAN) powertrain systems bus. The signal is used by the Instrument Cluster (IC) to provide oil pressure information to the driver.

In the event of oil pressure falling below the operating threshold of the sensor:

The PCM issues a message to display a low oil pressure warning in the message center.

Illuminate an oil pressure warning indicator - system status in the IC.