Switch, Oil Pressure: Operation: Operation
WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
The oil pressure switch is normally "Closed." The switch changes from a "Closed" circuit to an "Open" circuit, on increasing pressure of 48 kPa (7 psig). The oil pressure switch changes from an "Open" circuit to a "Closed" circuit, on decreasing pressure, between 14 kPa (2 psig) and 28 kPa (4 psig).