Generator Load Test
Ensure drive belt is in good condition. Replace belt as necessary. If belt is okay, turn on headlights for 30 seconds to remove surface charge. Turn off headlights. Measure battery voltage and record. Start and run engine at 2000 RPM. Turn on high beams and turn blower to high position. Turn on air conditioning, if equipped. Run engine at 2000 RPM and observe voltmeter. Voltage should increase at least .5 volt over recorded value.