JAC J2 User Manual



Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
174
2.
Trouble
Diagnosis
Flow
Chart
The check starts

1.
Acquire
the
symptom
information
Ask the user for
more informa
tion associate
d with symptom

2.Check the DTC
Check DTC and print DTC and freeze frame
data, inspect related maintenance record

3.Recognize the symptom
Attempt to diag
nose the
symptom described by the user.

User described the
symptom and the
apparatus displays DTC

5. Implement the confirmation steps of DTC.

User did not
describe the
symptom, but
apparatus
displays the
DTC.

4. Recognize the symptom
Attempt to diag
nose the sym
ptom
described by the user.

User described the
symptom and
apparatus did not
show DTC

6. Implement the basic
check.

10. Check the troubled component through the
diagnosis steps

9. Use the trouble
symptom table to check
troubled system
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8. Check the troubled
component

7. Run the trouble diagnosis &
check mode

11. Repair or replace the troubled components

12. Final check
Confirm no symptom found
Implemen
t the
“DTC confirmation steps” again,
and be sure to repaire the trouble properly.

A
b
n
o
r
m
a
l
(
D
T
C
d
e
t
e
c
t
e
d
)
Normal

The check ends

No troubled
component found

Within the scope
of technical
parameters

Beyond the scope of
the technical
parameters

Inspect with trouble
diagnosis apparatus

Troubled component
found

Abnormal (symptom
still exists)

Do not use the trouble diagnosis apparatus


JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English