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 volt above the base voltage.
^ If the voltage does not increase as specified, perform the Generator On-Vehicle Tests. Generator Testing
^ If the voltage increased as specified, the charging system is operating normally. Perform the Field Circuit Drain Test, Battery-Drain Testing and Battery-Electronic Drains Which Shut Off When the Battery Cable is Disconnected battery tests. Drain Test