Low Engine Coolant
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue, 2001 Oldsmobile Intrigue, and 2000 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the low engine coolant indicator when the IPC detects a low coolant level condition (signal circuit is low).