Mitsubishi L200. Manual — part 151
TROUBLESHOOTING
DIESEL FUEL
13A-400
STEP 3. Check harness between C-105 (terminal
No. 75) engine-ECU connector and A-41 (terminal
No. 1) No. 2 injector connector.
• Check earthing line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Repair the damaged harness wire.
STEP 4. Check harness between C-105 (terminal
No. 50) engine-ECU connector and A-130
(terminal No. 1) No. 3 injector connector.
• Check earthing line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 5 .
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
AKA00187
1
2
Connector: A-41
A-41 (GR)
Harness side
connector
AB
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
AKA00188
1
2
Connector: A-130
A-130 (GR)
Harness side
connector
AB
TROUBLESHOOTING
DIESEL FUEL
13A-401
STEP 5. Check harness between C-105 (terminal
No. 73) engine-ECU connector and A-41 (terminal
No. 2) No. 2 injector connector
• Check power supply line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Repair the damaged harness wire.
STEP 6. Check harness between C-105 (terminal
No. 49) engine-ECU connector and A-130
(terminal No. 2) No. 3 injector 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. Check Injector itself
• Check No. 2 injector and No. 3 injector itself
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Replace the injector. After replacing the
Injector, register the injector identification
code and learn fuel injection (Refer to
GROUP 00
− Precautions Before Service −
What The Common Rail Engine Learns ).
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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
AKA00187
1
2
Connector: A-41
A-41 (GR)
Harness side
connector
AB
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
AKA00188
1
2
Connector: A-130
A-130 (GR)
Harness side
connector
AB
TROUBLESHOOTING
DIESEL FUEL
13A-402
STEP 8. M.U.T.-III diagnosis code.
• After clearing the diagnosis code through M.U.T.-
III, start the engine and confirm whether the diag-
nosis code is set.
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 ).
Code No. P2151: Injector Common 2 (Cylinder No. 2 and No. 3) Circuit Battery Short <Euro5>
OPERATION
• Refer to Code No. P0202: No. 2 Injector Circuit
Malfunction
• Refer to Code No. P0203: No. 3 Injector Circuit
Malfunction
FUNCTION
• The engine-ECU monitors voltage application to
the injector during no injector energization to
detect errors in the No. 2 and No. 3 injector drive
circuit.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in "ON" position.
Judgment Criterion
• Short-circuit to the battery is detected in the injec-
tor drive circuit.
PROBABLE CAUSES
• Short circuit in injector circuit or loose connector
contact
• Failed No. 2 injector
• Failed No. 3 injector
• Failed engine-ECU
DIAGNOSIS PROCEDURE
WARNING
A high-tension voltage is flowing between
the engine-ECU and the injectors while the
engine is running. Handle them carefully to
avoid receiving electric shocks from the volt-
age.
STEP 1. Connector check: A-41 No. 2 injector
connector and A-130 No. 3 injector connector.
Q: Are the check results normal?
YES :
Go to Step 2 .
NO :
Repair or replace the connector.
AKA00191
1
2
Connectors: A-41, A-130
A-41 (GR)
A-130 (GR)
Harness side
connector
AB
TROUBLESHOOTING
DIESEL FUEL
13A-403
STEP 2. Connector check: C-105 engine-ECU
connector.
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair or replace the connector.
STEP 3. Check harness between C-105 (terminal
No. 75) engine-ECU connector and A-41 (terminal
No. 1) No. 2 injector connector.
• Check earthing line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 4 .
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
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
AKA00187
1
2
Connector: A-41
A-41 (GR)
Harness side
connector
AB
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