Load Test
NO-LOAD TEST1. Connect the 73 Digital Multimeter leads across the battery terminals.
2. Read the voltage (base voltage).
3. Start the engine.
4. Run the engine to 1500 rpm with no electrical load.
5. Read the voltage. If the voltage increase is less than 2.5 volts over the base voltage, carry out the following Load Test. If there is no voltage increase or the voltage increase is greater than 2.5 volt, carry out the Generator On-Vehicle Test. Generator On-Vehicle Tests