Charging System: Testing and Inspection

Alternator Test: With IC Regulator:

Before conducting an alternator test, make sure that the battery is fully charged. A 30-Volt voltmeter and suitable test probes are necessary for the test. The alternator can be checked easily by referring to the Inspection Table.

Before starting trouble-shooting, inspect the fusible link.


1. Use fully charged battery.
2. Light: Charge warning light
ACG: Alternator parts expect IC regulator
IC-RG: IC regulator
OK: IC-alternator is in good condition.

3. When reaching "Damaged A.C.G.", remove alternator from vehicle and is assemble, inspect and correct or replace faulty parts.
4. *Method of grounding F terminal (HITACHI make only.
5. Terminals "S", "L", "B" and "E" are marked on rear cover of alternator.

Gasoline Engine Model:

Gasoline Engine Model
Contact tip of wire with brush and attach wire to alternator body.