Mitsubishi L200. Manual — part 180
TROUBLESHOOTING
DIESEL FUEL
13A-516
STEP 6. Check harness between A-134 (terminal
No. 1) power steering fluid pressure switch
connector and C-103 (terminal No. 127) engine-
ECU connector.
NOTE: Before checking harness, check intermediate
connectors A-27 and A-115, and repair if necessary.
• Check output line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the harness wire.
STEP 7. M.U.T.-III data list
• Refer to Data List Reference Table
.
a. Item 75: Power steering fluid pressure switch
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,
the vehicle equipped with the DPF carries
out the forcible DPF regeneration. (Refer to
GROUP 17
− Emission Control − Diesel
Particulate Filter (DPF) System
− Forcible
DPF Regeneration ).
STEP 8. Perform voltage measurement at C-103
engine-ECU connector.
• Measure engine-ECU terminal voltage.
• Engine: Idling
• Voltage between terminal No. 127 and earth.
OK:
System voltage (Steering wheel: Stationary)
1 V or less (Steering wheel: Turned)
Q: Is the check result normal?
AK501383
1
Harness side
connector
Connector: A-134
A-134 (B)
AB
AKA00090
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
146
147
148
149
150
151
152
153
154
155
156
157
158
117
145
116
144
C-103 (B)
C-103 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-103
AB
AKA00090
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
146
147
148
149
150
151
152
153
154
155
156
157
158
117
145
116
144
C-103 (B)
C-103 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-103
AB
TROUBLESHOOTING
DIESEL FUEL
13A-517
YES :
Go to Step 11 .
NO :
Go to Step 9 .
STEP 9. Connector check: C-103 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Repair or replace.
STEP 10. Check harness between A-134 (terminal
No. 1) power steering fluid pressure switch
connector and C-103 (terminal No. 127) engine-
ECU connector.
NOTE: Before checking harness, check intermediate
connectors A-27 and A-115, and repair if necessary.
• Check output line for damage.
Q: Is the check result normal?
YES :
Replace the power steering fluid pressure
switch.
NO :
Repair the harness wire.
AKA00090
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
146
147
148
149
150
151
152
153
154
155
156
157
158
117
145
116
144
C-103 (B)
C-103 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-103
AB
AK501383
1
Harness side
connector
Connector: A-134
A-134 (B)
AB
AKA00090
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
146
147
148
149
150
151
152
153
154
155
156
157
158
117
145
116
144
C-103 (B)
C-103 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-103
AB
TROUBLESHOOTING
DIESEL FUEL
13A-518
STEP 11. Connector check: C-103 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair or replace.
AKA00090
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
146
147
148
149
150
151
152
153
154
155
156
157
158
117
145
116
144
C-103 (B)
C-103 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-103
AB
TROUBLESHOOTING
DIESEL FUEL
13A-519
Inspection Procedure 25: Glow System <Except Euro5>
OPERATION
• The engine-ECU controls the glow plug relay and
glow indicator lamp based on the signal of the
engine coolant temperature sensor in order to
easily start the engine at the cool condition.
PROBABLE CAUSES
• Failed glow control relay
• Failed glow plug
AKA00122
1
1
1
2
1
39
37
40 41 42
38
31
35
34
33
36
32
60
58
61 62 63 64
59
51
55
54
53
56 57
52
1
2
3
4
5 6 7 8 9
10 1112 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
J/C (5)
C-132
Glow System Circuit
20
1
1
A-111
1
A-11
A-11
A-111
2
B-R
W-R
W
R
1
22
24
C-53*¹ or
C-35*²
51
C-111
36
15
12
6
C-209
4
15
7.5A
C-207
C-112
C-111
MU801586
L
L
B-W
B-W
J/B
L-B
Engine-ECU
Combination
meter
Glow
plugs
Glow
plug
relay
A-06
C-105
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Grey
R: Red P: Pink V: Violet PU: Purple SI: Silver
C-112
A-112
MU802601
Fusible link
Engine control relay
Ignition switch (IG1)
OFF
ON
Glow
NOTE
*1: L.H. drive vehicles
*2: R.H. drive vehicles
24
AB
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