Signal Path
WARNING: This page is about a different car, the 2018 Infiniti Q60. However, it is still accessible from the selected car via links, so may be relevant.
ECM calculates an engine oil pressure according to a signal transmitted from the engine oil pressure sensor.
After engine running when the engine oil pressure is low and at least 5 seconds, ECM transmits the engine oil pressure warning signal to combination meter via CAN communication. Then the engine oil pressure warning displays.