C 1500 Suburban 2WD V8-6.5L DSL Turbo VIN F (1997)
Volt Meter Gauge: Description and Operation
The Voltmeter measures the electrical system's voltage when the Ignition Switch is in "RUN" or "START." It measures battery voltage as fed to the
Instrument Cluster with the engine running, the normal reading is 14 (12 to 16 volts). The indication may decrease to 9.5 volts in cold weather with the
engine stopped.