1. With the engine running, turn on the air conditioner (if equipped), turn the blower motor to high speed and the headlamps to 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 as specified, refer to Generator On-Vehicle Tests.

If the voltage increases as specified, the charging system is operating normally. Proceed to battery.