Mitsubishi L200. Manual — part 99
TROUBLESHOOTING
DIESEL FUEL
13A-192
DIAGNOSIS PROCEDURE
STEP 1. Connector check: A-43 camshaft
position sensor connector
Q: Is the check result normal?
YES :
Go to Step 2 .
NO :
Repair or replace the connector.
STEP 2. Perform voltage measurement at A-43
camshaft position sensor connector.
• Use special tool harness (MB991709) to connect
connector, and measure at pick-up harness.
• Ignition switch: ON
• Voltage between terminal No. 2 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Go to Step 3 .
STEP 3. Perform voltage measurement at C-105
engine-ECU connector.
• Measure engine-ECU terminal voltage.
• Disconnect A-43 camshaft position sensor con-
nector.
• Ignition switch: ON
• Voltage between terminal No. 66 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Go to Step 5 .
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
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
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
TROUBLESHOOTING
DIESEL FUEL
13A-193
STEP 4. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Check intermediate connector A-131, and
repair if necessary. If intermediate
connector is normal, check and repair
harness between A-43 (terminal No. 2)
camshaft sensor connector and C-105
(terminal No. 66) engine-ECU connector.
• Check output line for open circuit and
damage.
NO :
Repair or replace the connector.
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.
AKA00089
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2
3
4
5
6
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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
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
AKA00089
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2
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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-194
STEP 6. Check harness between A-43 (terminal
No. 2) camshaft position sensor connector and
C-105 (terminal No. 66) engine-ECU connector.
NOTE: Before checking harness, check intermediate
connector A-131, and repair if necessary.
• Check output 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 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,
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 ).
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
STEP 8. Perform voltage measurement at A-43
camshaft position sensor connector.
• Use special tool harness (MB991709) to connect
connector, and measure at pick-up harness.
• Ignition switch: ON
• Voltage between terminal No. 3 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Go to Step 9 .
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
AKA00089
1
2
3
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5
6
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90
91
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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
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
TROUBLESHOOTING
DIESEL FUEL
13A-195
STEP 9. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Repair or replace the connector.
STEP 10. Check harness between A-43 (terminal
No. 3) camshaft position sensor connector and
C-105 (terminal No. 69) engine-ECU connector.
NOTE: Before checking harness, check intermediate
connector A-131, and repair if necessary.
• Check power supply line for short circuit and
damage.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
AKA00089
1
2
3
4
5
6
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95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AK501330
1
2
3
AB
Harness side
connector
A-43 (B)
Connector: A-43
AKA00089
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2
3
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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
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