Alternator: Testing and Inspection

Conduct a bench test of the generator.

Remove generator from the vehicle (see "Removal and Installation"). Service and Repair
1. Secure generator to the bench test equipment and connect wires.
Terminal "IG" for energization
Terminal "L" for neutral (warning lamp)
Terminal "B" for output





2. Conduct the generator characteristic test.
Characteristics of generator are shown in image.
Repair or replace the generator if its outputs are abnormal.