When Monitored
WARNING: This page is about a different car, the 2013 RAM 2500 HD and 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The Powertrain Control Module (PCM) monitors the functionality of the Engine Oil Pressure Sensor by comparing the change oil pressure at between zero RPM (zero pressure) to the oil pressure above 1150 RPM.