Mitsubishi L200. Manual — part 106
TROUBLESHOOTING
DIESEL FUEL
13A-220
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.
STEP 6. Check harness between A-45 (terminal
No. 3) EGR valve assembly connector and C-105
(terminal No. 71) engine-ECU connector.
• Check power supply line for short 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 16: EGR valve position sensor
Q: Is the check result normal?
AKA00089
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AK501331
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2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
AKA00089
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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-221
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 ).
STEP 8. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Check and repair harness between A-45
(terminal No. 3) EGR valve assembly
connector and C-105 (terminal No. 71)
engine-ECU connector.
• Check power supply line for open
circuit and damage.
NO :
Repair or replace the connector.
STEP 9. Perform resistance measurement at A-45
EGR valve assembly connector.
• Disconnect connector, and measure at harness
side.
• Ignition switch: ON
• Resistance between terminal No. 2 and earth.
OK: Continuity (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 12 .
NO :
Go to Step 10 .
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AK501331
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2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
AK501331
1
2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
TROUBLESHOOTING
DIESEL FUEL
13A-222
STEP 10. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Repair or replace the connector.
STEP 11. Check harness between A-45 (terminal
No. 2) EGR valve assembly connector and C-105
(terminal No. 81) engine-ECU connector.
• Check earthing line for damage.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
AKA00089
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AK501331
1
2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
AKA00089
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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-223
STEP 12. Perform voltage measurement at A-45
EGR valve assembly connector.
• Use special tool test harness (MB991658) to con-
nect connector and measure at pick-up harness.
• Engine: Idling (after warning up)
• Voltage between terminal No. 1 and earth.
OK: 2.0 V or higher
Q: Is the check result normal?
YES :
Go to Step 15 .
NO :
Go to Step 13 .
STEP 13. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 14 .
NO :
Repair or replace the connector.
STEP 14. Check harness between A-45 (terminal
No. 1) EGR valve assembly connector and C-105
(terminal No. 57) engine-ECU connector.
• Check output line for short circuit.
Q: Is the check result normal?
YES :
Replace the EGR valve assembly.
NO :
Repair the damaged harness wire.
AK501331
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2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
AKA00089
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AK501331
1
2
3
4
5
6
AB
Harness side
connector
A-45 (GR)
Connector: A-45
AKA00089
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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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