Normal Operation
WARNING: This page is about a different car, the 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The fire suppression module (FSM) monitors all of the firing loops circuits for a cross-link between the circuits of another firing loop. If the FSM detects a short between the circuits of a firing loop and another firing loop, it stores a diagnostic trouble code (DTC) B2792 in memory and illuminates the fire suppression system indicator.