Oil Pressure Warning Lamp

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

IPDM E/R reads the ON/OFF signals from the oil pressure switch and transmits the oil pressure switch signal to the combination meter via BCM with the CAN communication line.
The combination meter turns the oil pressure warning lamp ON/OFF according to the oil pressure switch signal received via CAN communication.