According to the PMCS table, when is the battery gauge considered inoperative?

The battery gauge is deemed inoperative when it indicates less than 24 VDC or more than 30 VDC while the engine is running because these values fall outside the acceptable operational range for a healthy battery system. A properly functioning battery gauge should show voltage levels within specified parameters that indicate the battery is charging correctly and supplying adequate power.

When the reading drops below 24 VDC, it suggests that the battery is not receiving sufficient charge or is potentially failing, which can lead to operational issues. Conversely, readings above 30 VDC could indicate overcharging, which can damage the battery and connected systems. Thus, if the gauge falls outside of this specified range during operation, it signals a malfunction in the battery’s performance, making it inoperative for practical purposes.