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 information associated 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 diagnose 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 diagnose the symptom
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
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
Implement 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