Low Oil Pressure
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
The DIC illuminates the LOW OIL PRESSURE message in the driver information center (DIC) when the PCM detects low engine oil pressure, and the signal circuit is low. The IPC and DIC receives a class 2 message requesting illumination from the PCM.