Load Test

1. With the engine running, turn the air conditioner on (if equipped), turn the blower motor on high speed, and turn the headlamps on high beam.
2. Increase the engine speed to approximately 2000 rpm. The voltage should increase a minimum of 0.5 volts above the base voltage. Refer to the Bench Test procedures to check the generator if the voltage does not increase as specified. [1][2]Generator Bench Test

If the voltage increased as specified, the charging system is operating normally. Proceed to the battery capacity testing.