Maintenance Manual for J2 Sedan
Electrical Part of Engine
154
5. Trouble Diagnosis for Charging System
Be sure that the battery has been sufficiently charged before test of generator. A 30 V volt meter and a
proper test probe should be used in test. Inspection chart is helpful for inspection of generator.
■
Check the fusible wire before starting up.
■
Use a battery fully charged.
Inspection Flow Chart of Charging System
Attention:
■
If the charging system has trouble but the test results suggest normal, inspect connection of
“B” port (Inspect tightening torque and voltage drop).
■
Inspect conditions of rotor coil, rotor slip ring, electric brush and stator coil. Replace failure
parts as required.
The ignition
switch is on.
The alarm
light is off.
The alarm
light is off.
The alarm light is
on.
The engine starts
with a rev of 1500
rpm.
The alarm light is
on.
The alarm light is
off.
The alarm light is
on.
Perform following
inspection: 1. rotor 2.
Slip ring of rotor 3.
Electric brush.
Change
damaged IC
regulator.
Conduct the
following check:
1. Rotor
2. Slip ring of
rotor 3. Electric
brush
The engine
runs at idle
speed.
The alarm light
is off.
The alarm light is
on.
Normal.
The engine rev is
2500 rpm.
Measure the
voltage of B port.
More than 16.0 V.
Less than 13.0 V.
Change the
damaged IC
regulator.
Conduct the following
check: 1. Rotor 2. Slip ring
of rotor 3. Electric brush 4.
Stator.
Change the
damaged IC
regulator or
diode assembly.
Normal.
Conduct following
check: 1. Bulb of
alarm light 2. Fuse of
alarm light .
Disconnect the
connector, and
ground the L-side
harness.
Alarm light: the “charging” alarm light in the
combined instrument.