Low Fuel
WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the low fuel indicator when the IPC detects that the fuel level is less than 17 percent. The IPC receives a class 2 message indicating fuel level percent from the PCM.