Generator Load Test

Verify battery condition. Charge or replace as necessary. Connect load tester and ammeter according to tool manufacturer's instructions. With engine running at 2000 RPM and all accessories off, load system to determine generator voltage output. With engine running, turn A/C (if equipped) and headlights on, turn blower motor to high speed. Increase engine speed to 2000 RPM. Voltage should increase a minimum of .5 volt above base voltage.