Mitsubishi L200. Manual — part 130
TROUBLESHOOTING
DIESEL FUEL
13A-316
STEP 9. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Repair or replace the connector.
STEP 10. Check harness between A-158 (terminal
No. 1) No. 3 exhaust gas temperature sensor
(DPF temperature) connector and C-105 (terminal
No. 84) engine-ECU connector.
NOTE: Before checking harness, check intermediate
connector A-28, and repair if necessary.
• Check earthing line for open circuit and damage.
Q: Is the check result normal?
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
43
44
45
46
47
48
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AKB00278
1
2
A-158 (B)
Connector: A-158
AB
Harness side
connector
No. 3 exhaust gas
temperature sensor
(DPF temperature)
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
43
44
45
46
47
48
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
TROUBLESHOOTING
DIESEL FUEL
13A-317
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
STEP 11. Connector check: C-105 engine-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 12 .
NO :
Repair or replace the connector.
STEP 12. Check harness between A-158 (terminal
No. 2) No. 3 exhaust gas temperature sensor
(DPF temperature) connector and C-105 (terminal
No. 60) engine-ECU connector.
NOTE: Before checking harness, check intermediate
connector A-28, and repair if necessary.
• Check output line for damage.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
43
44
45
46
47
48
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AKB00278
1
2
A-158 (B)
Connector: A-158
AB
Harness side
connector
No. 3 exhaust gas
temperature sensor
(DPF temperature)
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
43
44
45
46
47
48
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
TROUBLESHOOTING
DIESEL FUEL
13A-318
Code No. P1497: DPF System Malfunction <Euro5>
FUNCTION
• The engine-ECU monitors the input signals from
sensors to check if the DPF regeneration is exe-
cuted normally.
TROUBLE JUDGMENT
Check Condition
• On DPF regeneration
Judgement Criterion
• The DPF regeneration status continues for 30
minutes or more.
Check Condition
• Ignition switch is in "ON" position
Judgement Criterion
• The regeneration with short interval continues for
specified times.
PROBABLE CAUSES
• Failed No. 2 exhaust gas temperature sensor
(catalyst temperature)
• Failed No. 3 exhaust gas temperature sensor
(DPF temperature)
• Failed exhaust differential pressure sensor
• Failed exhaust differential pressure sensor ambi-
ent air temperature sensor
• Catalytic converter inactive
• The engine oil-containing ash is loaded to the
DPF inside.
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list.
• Refer to Data List Reference Table
.
a. Item 118: No. 2 exhaust gas temperature sen-
sor (catalyst temperature)
b. Item 119: No. 3 exhaust gas temperature sen-
sor (DPF temperature)
c. Item 120: Exhaust differential pressure sensor
Q: Are the check results normal?
YES :
Go to Step 2 .
NO :
Perform the diagnosis code classified check
procedure for the sensor that has shown an
abnormal data value (Refer to Inspection
Chart for Diagnosis Code
STEP 2. M.U.T.-III data list.
• Item 208: Short interval DPF regeneration count
OK: 10 or more
Q: Is the short interval DPF regeneration counting 10
or more?
YES :
Go to Step 4 .
NO :
Go to Step 3 .
STEP 3. Forcible DPF regeneration execution
• Initialise the DPF-related parts, and then delete
the diagnosis code (Refer to GROUP 00
− Pre-
cautions before Service
− Initialisation Procedure
for Learning Value in Diesel Particulate Filter
(DPF) System ).
a. Item 42: DPF system malfunction service
• Carry out the forcible DPF regeneration (Refer to
GROUP 17
− Emission Control − Diesel Particu-
late Filter (DPF) System
− Forcible DPF Regen-
eration ).
Q: Is the diagnosis code P0420 or P1497 set?
YES :
Replace the catalytic converter. When the
catalytic converter is replaced, initialise the
learning value (Refer to GROUP 00
−
Precautions before Service
− Initialisation
Procedure for Learning Value in Diesel
Particulate Filter (DPF) System ). On
completion, carry out the forcible DPF
regeneration (Refer to GROUP 17
−
Emission Control
− Diesel Particulate Filter
(DPF) System
− Forcible DPF Regeneration
).
NO :
Replace the engine-ECU. When the engine-
ECU is replaced, write the chassis number
(Refer to GROUP 00
− Precautions Before
Service
− How to Perform Chassis Number
Writing ). After replacing the engine-ECU,
register the injector identification code and
learn fuel injection (Refer to GROUP 00
−
Precautions Before Service
− What The
Common Rail Engine Learns ). After
registering the injector identification code,
carry out the forcible DPF regeneration.
(Refer to GROUP 17
− Emission Control −
Diesel Particulate Filter (DPF) System
−
Forcible DPF Regeneration ).
TROUBLESHOOTING
DIESEL FUEL
13A-319
STEP 4. Forcible DPF regeneration execution
• Initialise the DPF-related parts, and then delete
the diagnosis code (Refer to GROUP 00
− Pre-
cautions before Service
− Initialisation Procedure
for Learning Value in Diesel Particulate Filter
(DPF) System ).
a. Item 42: DPF system malfunction service
• Carry out the forcible DPF regeneration 2 times
(Refer to GROUP 17
− Emission Control − Diesel
Particulate Filter (DPF) System
− Forcible DPF
Regeneration ).
NOTE: Carry out the DPF regeneration 2 times
because the assumption of the accumulated
amount of the DPF is not stable.
• M.U.T.-III data list
a. Item 156: Soot loading by differential pressure
OK: 3 g/L or less
Q: Is the check result normal?
YES :
Proceed to troubleshooting for black smoke
(Refer to Inspection Procedure 13
).
NO :
Replace the DPF. When the DPF is
replaced, initialise the learning value (Refer
to GROUP 00
− Precautions Before Service
− Initialisation Procedure For Learning
Value in Diesel Particulate Filter (DPF)
System ).
Code No. P1498: Excessive PM Accumulated in DPF <Euro5>
FUNCTION
• The engine-ECU monitors the input signals from
sensors to estimate the PM amount loaded to the
DPF inside.
• If the PM is loaded more than the specified
amount, the DPF regeneration is automatically
executed under certain conditions in order to
eliminate the PM.
• If the PM is excessively loaded, the engine-ECU
does not execute the automatic DPF regenera-
tion. It makes the engine warning lamp illuminate
and the DPF lamp blink.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in "ON" position.
Judgement Criterion
• Driving distance exceeds the specified value after
the last DPF regeneration.
PROBABLE CAUSE
• The PM is abnormally loaded to the DPF inside.
DIAGNOSIS PROCEDURE
STEP 1. Forcible DPF regeneration execution
• Carry out the forcible DPF regeneration (Refer to
GROUP 17
− Emission Control − Diesel Particu-
late Filter (DPF) System
− Forcible DPF Regen-
eration ).
Q: Is the diagnosis code output?
YES :
Inspection chart for diagnosis code (Refer
to
NO :
Check end.
Code No. P1499: Abnormally high DPF temperature <Euro5>
FUNCTION
• The DPF may be have melting damage if the
temperature exceeds the specified value.
• The engine-ECU monitors the signals from No. 3
exhaust gas temperature sensor (DPF tempera-
ture) to check if the DPF is under the specified
temperature.
TROUBLE JUDGMENT
Check Condition
• On DPF regeneration
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст