Bench Testing: Generator

Remove the generator from the vehicle. See GENERATOR under REMOVAL & INSTALLATION.
Secure the generator to the bench test equipment and connect wires. See Fig 1 .
- Terminal "IG" for energizing
- Terminal "L" for neutral (warming lamp)
- Terminal "B" for output
Conduct the generator output test. For characteristics of generator, see Fig 2 . Repair or replace the generator if its outputs are abnormal.

Fig 1: Identifying Generator Bench Testing Set-Up

Courtesy of ISUZU MOTOR CO.

Fig 2: Identifying Generator Output Test Chart

Courtesy of ISUZU MOTOR CO.