Mitsubishi L200. Manual — part 77
TROUBLESHOOTING
DIESEL FUEL
13A-104
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
• Refer to Data List Reference Table
a. Item 8: EGR gas temperature sensor
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
NO :
Go to Step 2 .
STEP 2. Connector check: A-157 EGR gas
temperature sensor connector
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair or replace the connector.
STEP 3. Check EGR gas temperature sensor
itself.
• Check EGR gas temperature sensor itself (Refer
to GROUP 17
− Emission Control − Exhaust Gas
Recirculation (EGR) System
− EGR Gas Temper-
ature Sensor Check ).
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Replace the EGR gas temperature sensor.
STEP 4. Perform voltage measurement at A-157
EGR gas temperature sensor connector.
• Disconnect connector, and measure at harness
side.
• Ignition switch: ON
• Voltage between terminal No. 2 and earth.
OK: 4.5
− 4.9 V
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Go to Step 5 .
STEP 5. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Repair or replace the connector.
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
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84
85
86
87
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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-105
STEP 6. Check harness between A-157 (terminal
No. 2) EGR gas temperature sensor connector
and C-105 (terminal No. 36) engine-ECU
connector.
• Check output line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
STEP 7. M.U.T.-III data list
• Refer to Data List Reference Table
a. Item 8: EGR gas temperature sensor
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
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 ).
STEP 8. Perform resistance measurement at A-
157 EGR gas temperature sensor connector.
• Disconnect connector, and measure at harness
side.
• Resistance between terminal No. 1 and earth.
OK: Continuity (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Go to Step 9 .
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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27
28
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30
31
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50
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61
62
63
64
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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
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
TROUBLESHOOTING
DIESEL FUEL
13A-106
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-157 (terminal
No. 1) EGR gas temperature sensor connector
and C-105 (terminal No. 30) engine-ECU
connector.
• Check earthing line for open circuit.
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
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29
30
31
32
33
34
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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
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
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24
25
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27
28
29
30
31
32
33
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36
37
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41
42
49
50
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55
56
57
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60
61
62
63
64
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66
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68
69
70
71
72
43
44
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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-107
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-157 (terminal
No. 2) EGR gas temperature sensor connector
and C-105 (terminal No. 36) engine-ECU
connector.
• 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
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27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
49
50
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55
56
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58
59
60
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62
63
64
65
66
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68
69
70
71
72
43
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47
48
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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
AKB00263
1
2
AB
A-157 (B)
Harness side
connector
Connector: A-157
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
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64
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66
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68
69
70
71
72
43
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47
48
73
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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
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