Mitsubishi L200. Manual — part 131
TROUBLESHOOTING
DIESEL FUEL
13A-320
Judgement Criterion
• The No. 3 exhaust gas temperature sensor (DPF
temperature) detects the abnormally high temper-
ature.
or
• The estimated DPF centre temperature exceeds
the specified value.
PROBABLE CAUSE
• Damage by the DPF with high temperature
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list.
• Refer to Data List Reference Table
.
a. Item 119: No. 3 exhaust gas temperature sen-
sor (DPF temperature)
Q: Is the check result normal?
YES :
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 ).
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
TROUBLESHOOTING
DIESEL FUEL
13A-321
Code No. P1608: Battery Current Sensor System <Euro5>
OPERATION
• A power voltage of 5 V is supplied to the battery
current sensor (terminal No. 1) from the engine-
ECU (terminal No. 148) and is earthed to the
engine-ECU (terminal No. 155) from the battery
current sensor (terminal No. 3).
• The battery current sensor (terminal No. 4) out-
puts a sensor signal, which is input into the
engine-ECU (terminal No. 138).
FUNCTION
• The battery current sensor detects a battery cur-
rent and inputs a signal into the engine-ECU.
• In response to the signal, the engine-ECU con-
trols charging and discharging.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in "ON" position.
Judgment Criterion
• The battery current sensor output voltage is 0.2 V
or less.
or
• The battery current sensor output voltage is 4.8 V
or more.
PROBABLE CAUSES
• Failed battery current sensor
• Open/short circuit or harness damage in battery
current sensor circuit or loose connector contact
• Failed engine-ECU
AKB00279
101 102
103104 105 106107 108109 110 111112 113 114115
118119 120 121122 123124 125126127 128 129130
131132 133 134135 136137 138139140 141142 143
146147 148 149150 151152 153154155 156 157158
117
145
116
144
2
4
1
3
AB
5 V
148
1
Battery current sensor
R-B
BR-Y
BR-B
Engine-ECU
138
155
4
3
Battery Current Sensor Circuit
C-103
A-152
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
Hall IC
TROUBLESHOOTING
DIESEL FUEL
13A-322
DIAGNOSIS PROCEDURE
STEP 1. Connector check: A-152 battery current
sensor connector
Q: Is the check result normal?
YES :
Go to Step 2 .
NO :
Repair or replace the connector.
STEP 2. Check battery current sensor itself.
• Check battery current sensor itself (Refer to
GROUP 54A
− Battery − Inspection − Battery
Current Sensor Check ).
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Replace the battery current sensor.
STEP 3. Perform voltage measurement at A-152
battery current sensor connector.
• Disconnect connector and measure at harness
side.
• Ignition switch: ON
• Voltage between terminal No. 1 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Go to Step 4 .
STEP 4. Connector check: C-103 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Repair or replace the connector.
AKB00274
1
3
2
4
A-152 (GR)
Harness side
connector
Connector: A-152
AB
AKB00274
1
3
2
4
A-152 (GR)
Harness side
connector
Connector: A-152
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-323
STEP 5. Check harness between A-152 (terminal
No. 1) battery current sensor connector and C-
103 (terminal No. 148) engine-ECU 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. M.U.T.-III diagnosis code
• Reconfirmation of diagnosis code.
Q: Is the diagnosis code set?
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 ).
STEP 7. Perform resistance measurement at A-
152 battery current sensor connector.
• Disconnect connector and measure at harness
side.
• Resistance between terminal No. 3 and earth.
OK: Continuity (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Go to Step 8 .
AKB00274
1
3
2
4
A-152 (GR)
Harness side
connector
Connector: A-152
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
AKB00274
1
3
2
4
A-152 (GR)
Harness side
connector
Connector: A-152
AB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст