A3 - Load Test
^ Increase engine speed to 2000 RPM.
^ Turn heater-A/C blower and headlamps on high.
^ Voltage should read a minimum of 0.5 volt over base voltage.
Increases 0.5 volt or more -- Go to A4. A4 - Batt Drain With Key Off
Increases 0.5 volt or more, but alternator indicator lamp stays on -- Go to A12. A12 - S Circuit Test
Increases less than 0.5 volt -- Go to A6. A6 - Under Voltage Test