List the four steps involved in performing a voltmeter test of the charging system?

To perform a voltmeter test of the charging system, follow these four steps: First, ensure the vehicle is off and connect the voltmeter leads to the battery terminals, noting the voltage reading. Next, start the engine and check the voltage again; it should increase to indicate proper charging. Then, increase the engine RPM and observe if the voltage rises further, indicating the alternator is functioning correctly. Finally, turn on electrical accessories to see if the voltage remains stable, confirming the charging system can handle the load.