Battery Load Test
1. With the engine running, turn the A/C 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 as specified, perform the Generator On-Vehicle Tests. Generator Testing
^ If the voltage increases as specified, the charging system is operating normally. Proceed to the battery tests. Drain Test