Alternator & Regulator: Testing
- Connect voltmeter across battery terminals and note voltage reading. Start engine and increase RPM until highest voltmeter reading is obtained. Voltmeter should remain steady and indicate between 13.5-15.0 volts.
- Turn on as many accessories as possible. Voltmeter should remain steady and indicate between 13.5-15.0 volts. If voltage readings are incorrect, repair or replace alternator.