Troubleshooting Hints - Mitsubishi MOTORS 3000GT Bedienungsanleitung

OPERATION
When engine is stopped
When the ignition switch is switched to the "ON"
position, electricity flows from the 'I" terminal of
the generator to the field coil, and at the same time
the charging warning light illuminates.
When engine is being started/has started
When the engine is started, charging voltage is ap-
plied to the 'I" terminal of the generator, with the
result that the charging warning light is extinguished.
In addition, because battery voltage is applied to
the "S" terminal of the generator, this battery voltage
is monitored at the IC voltage regulator, thus switch-
ing ON and OFF the current to the field coil and
thereby controlling the output voltage of the genera-
tor.
Power is supplied to each load from the "B" terminal
of the generator.
NOTE
The generator relay functions as a back-up for the
flow of electricity to the field coil if there is a discon-
nection or damaged wiring of the charging warning
light.
COMPONENT LOCATION
Name
ENGINE ELECTRICAL - Charging System
I I
TSB Revision

TROUBLESHOOTING HINTS

1. Charging warning light does not go on when
the ignition switch is turned to "ON", before the
engine starts.
Check the bulb.
l
2. Charging warning light fails to go off once the
engine starts.
Check the IC voltage regulator (located with-
l
in the generator).
3. Discharged or overcharged battery.
Check the IC voltage regulator (located with-
l
in the generator).
4. The charging warning light illuminates dimly.
Check the diode (within the combination
l
meter) for a short-circuit.