Load Test

1. With the engine running, turn the air conditioner on, if equipped, the blower motor on high speed and 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. If the voltage does not increase, perform the Generator On-Vehicle Tests and the Generator Bench Tests. Generator On-Vehicle Tests Generator Bench Tests

If the voltage increased to specification, the charging system is operating normally. Proceed to Drain Testing. [1][2]Drain Test