Mitsubishi L200. Manual — part 143
TROUBLESHOOTING
DIESEL FUEL
13A-368
STEP 4. Check harness between C-105 (terminal
No. 1) engine-ECU connector and A-42 (terminal
No. 2) No. 1 injector connector.
• Check power supply line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Repair the damaged harness wire.
STEP 5. Check harness between C-105 (terminal
No. 25) engine-ECU connector and A-129
(terminal No. 2) No. 4 injector connector.
• Check power supply line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Repair the damaged harness wire.
STEP 6. Check harness between C-105 (terminal
No. 2) engine-ECU connector and A-42 (terminal
No. 1) No. 1 injector connector.
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
AKA00186
1
2
Connector: A-42
A-42 (GR)
Harness side
connector
AB
1
2
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
AKA00189
1
2
Connector: A-129
Harness side
connector
AB
A-129 (GR)
TROUBLESHOOTING
DIESEL FUEL
13A-369
• Check earthing line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
STEP 7. Check harness between C-105 (terminal
No. 27) engine-ECU connector and A-129
(terminal No. 1) No. 4 injector connector.
• Check earthing line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Repair the damaged harness wire.
STEP 8. M.U.T.-III diagnosis code.
• After erasing the diagnosis code through M.U.T.-
III, start the engine and confirm whether the diag-
nosis code is output.
Q: Is the diagnosis code set?
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
AKA00186
1
2
Connector: A-42
A-42 (GR)
Harness side
connector
AB
1
2
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
AKA00189
1
2
Connector: A-129
Harness side
connector
AB
A-129 (GR)
TROUBLESHOOTING
DIESEL FUEL
13A-370
YES :
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 ).
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
Code No. P2146: Injector Common 1 (cylinder No. 1 and No. 4) Circuit Open <Except Euro5>
OPERATION
• Driving power is supplied from the engine-ECU
(terminal No. 1) to the No. 1 injector terminal (ter-
minal No. 2) and No. 4 injector (terminal No. 2).
FUNCTION
• The engine-ECU monitors peak current from the
No. 1 and No. 4 injector drive circuits.
TROUBLE JUDGMENT
Check Conditions
• Ignition switch is in "ON" position.
• Except during the engine cranking period
• Battery positive voltage is 8 V or more.
Judgment Criterion
• When the peak current is not detected in injector
circuits No. 1 and No. 4
PROBABLE CAUSES
• Failed No. 1 injector
• Failed No. 4 injector
• Open/short circuit in No. 1 and No. 4 injector cir-
cuit or loose connector contact
• Failed engine-ECU
DIAGNOSIS PROCEDURE
WARNING
A high-tension voltage is flowing between
the engine-ECU and the injectors while the
engine is running. Handle them carefully to
avoid receiving electric shocks from the volt-
age.
STEP 1. Connector check: A-42 No. 1 injector
connector and A-129 No. 4 injector connector
Q: Are the check results normal?
YES :
Go to Step 2 .
NO :
Repair or replace the connector.
STEP 2. Check Injector itself
• Check No. 1 injector and No. 4 injector itself
Q: Is the check result normal?
AKA00190
1
2
Connectors: A-42, A-129
A-42 (GR)
A-129 (GR)
Harness side
connector
AB
TROUBLESHOOTING
DIESEL FUEL
13A-371
YES :
Go to Step 3 .
NO :
Replace the injector. After replacing the
Injector, register the injector identification
code and learn fuel injection (Refer to
GROUP 00
− Precautions Before Service −
What The Common Rail Engine Learns ).
STEP 3. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Repair or replace the connector.
STEP 4. Check harness between C-105 (terminal
No. 1) engine-ECU connector and A-42 (terminal
No. 2) No. 1 injector connector.
• Check power supply line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 5 .
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
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
AKA00186
1
2
Connector: A-42
A-42 (GR)
Harness side
connector
AB
1
2
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст