Mitsubishi L200. Manual — part 72
TROUBLESHOOTING
DIESEL FUEL
13A-84
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-105 (terminal
No. 1) manifold absolute pressure sensor
connector and C-105 (terminal No. 72) 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 6: Manifold absolute pressure 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
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
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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-85
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. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Check and repair harness between A-105
(terminal No. 1) manifold absolute pressure
sensor connector and C-105 (terminal No.
72) engine-ECU connector.
• Check power supply line for open
circuit and damage.
NO :
Repair or replace the connector.
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
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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-86
STEP 9. Perform resistance measurement at A-
105 manifold absolute pressure 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 12 .
NO :
Go to Step 10 .
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-105 (terminal
No. 3) manifold absolute pressure sensor
connector and C-105 (terminal No. 31) 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.
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
6
7
8
9
10
11
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90
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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
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
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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-87
STEP 12. Perform voltage measurement at A-105
manifold absolute pressure sensor connector.
• Use special tool test harness (MB991709) to con-
nect connector, and measure at pick-up harness.
• Ignition switch: ON
• Voltage between terminal No. 2 and earth.
OK: 0.7
− 1.2 V
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-105 (terminal
No. 2) manifold absolute pressure sensor
connector and C-105 (terminal No. 37) engine-
ECU connector.
• Check output line for short circuit.
Q: Is the check result normal?
YES :
Replace the manifold absolute pressure
sensor.
NO :
Repair the damaged harness wire.
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
13
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72
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85
86
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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
AK900797
1
3 2
AB
Harness side
connector
A-105 (L)
Connector: A-105
AKA00089
1
2
3
4
5
6
7
8
9
10
11
12
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64
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72
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76
77
78
79
80
81
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85
86
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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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