Hybrid Electronic Cluster Self-Diagnostics Modes: "bAtt"
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
Displays battery voltage input to instrument cluster. Battery voltage gauge will indicate present battery voltage. Displays 93 - 102=6.9 - 9.1 volts (voltage low), 115-125=8.5-10.7 volts (normal start), 215-225=15.8-18 volts (normal end), 230-241=16.9-19.1 volts (voltage high).