Base Voltage Test

Voltmeter:

1. Turn off all lamps and electrical components.
2. Place the transmission in park or neutral and apply the parking brake.
3. Make sure the battery is fully charged.
4. With ignition in off position and no electrical load, connect the negative lead of the voltmeter to the negative battery cable clamp.
5. Connect the positive lead of the voltmeter to the positive battery cable clamp.
6. Record the battery voltage reading shown on the voltmeter scale. This reading is called the base voltage.
7. Perform the no load test. Alternator No-Load Test