Voltmeter
The voltmeter indicates nominal electrical system voltage. When the engine is running, the indicator should be 10-16 volts. If the indicator is not within these limits with the engine running, refer to Charging System Check in Computers and Control Systems. Testing and InspectionThe voltmeter has a red band at each extreme end of the voltmeter's range. If the indicator rests just outside of either band, consider this normal operation. If the indicator rests inside of either band, this indicates a charging system condition.