JAC J2 User Manual



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 b
e used in
test. Inspec
tion chart is
helpful for insp
ection o
f generator
.
■ Check
the
fusible
wire
before
starting
up.
■
Use
a
battery
fully
charged.
Inspection Flow Chart of
Charging System
Attention:
■
If the
charging sy
stem has
trouble
but the test results suggest normal, inspect connection of
“B” port (Inspect tightening torque and
voltage drop).
■
Inspect conditions
of rotor
coil, r
otor sli
p ring,
electric brush
and stator
coil. Repla
ce fail
ure
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.


JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English