Mitsubishi L200. Manual — part 144
TROUBLESHOOTING
DIESEL FUEL
13A-372
STEP 5. Check harness between C-105 (terminal
No. 1) engine-ECU connector and A-129 (terminal
No. 2) No. 4 injector 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. Check harness between C-105 (terminal
No. 2) engine-ECU connector and A-42 (terminal
No. 1) No. 1 injector connector.
• Check earthing line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
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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
AKA00189
1
2
Connector: A-129
Harness side
connector
AB
A-129 (GR)
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
AKA00186
1
2
Connector: A-42
A-42 (GR)
Harness side
connector
AB
1
2
TROUBLESHOOTING
DIESEL FUEL
13A-373
STEP 7. Check harness between C-105 (terminal
No. 27) engine-ECU connector and A-129
(terminal No. 1) No. 4 injector connector.
• Check earthing line for open circuit.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Repair the damaged harness wire.
STEP 8. M.U.T.-III diagnosis code.
• After erasing the diagnosis code through M.U.T.-
III, start the engine and confirm whether the diag-
nosis code is output.
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 ).
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/
Inspection Service Points
− How to Cope
with Intermittent Malfunctions ).
Code No. P2147: Injector Common 1 (Cylinder No. 1 and No. 4) Circuit Earth Short <Euro5>
OPERATION
• Refer to Code No. P0201: No. 1 Injector Circuit
Malfunction
• Refer to Code No. P0204: No. 4 Injector Circuit
Malfunction
FUNCTION
• The engine-ECU monitors voltage application to
the injector during no injector energization to
detect errors in the No. 1 and No. 4 injector drive
circuit.
TROUBLE JUDGMENT
Check Conditions
• Ignition switch is in "ON" position.
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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
AKA00189
1
2
Connector: A-129
Harness side
connector
AB
A-129 (GR)
TROUBLESHOOTING
DIESEL FUEL
13A-374
• Except during the engine cranking period
• Battery positive voltage is 8 V or more.
• When an engine-ECU internal capacitor is
allowed to be charged
Judgment Criterion
• Short-circuit to the ground is detected in the injec-
tor drive circuit.
PROBABLE CAUSES
• Short circuit in injector circuit or loose connector
contact
• Failed No. 1 injector
• Failed No. 4 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-42 No. 1 injector
connector and A-129 No. 4 injector connector.
Q: Are the check results normal?
YES :
Go to Step 2 .
NO :
Repair or replace the connector.
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.
AKA00190
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2
Connectors: A-42, A-129
A-42 (GR)
A-129 (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
TROUBLESHOOTING
DIESEL FUEL
13A-375
STEP 3. Check harness between C-105 (terminal
No. 2) engine-ECU connector and A-42 (terminal
No. 1) No. 1 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. 27) engine-ECU connector and A-129
(terminal No. 1) No. 4 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.
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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
AKA00186
1
2
Connector: A-42
A-42 (GR)
Harness side
connector
AB
1
2
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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
AKA00189
1
2
Connector: A-129
Harness side
connector
AB
A-129 (GR)
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