Signal Path

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.

IPDM E/R receives a signal from the engine oil pressure switch and transmits an oil pressure switch signal to BCM via CAN communication.
BCM transmits the received oil pressure switch signal to the combination meter via CAN communication.
The information display (on combination meter) engine oil pressure warning is SHOWN/HIDDEN according to the oil pressure switch signal received from BCM.