Mitsubishi L200. Manual - part 88

TROUBLESHOOTING

DIESEL FUEL

13A-148

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-44 (terminal 
No. 1) rail pressure sensor connector and C-105 
(terminal No. 70) engine-ECU connector.

NOTE: Before checking harness, check intermediate 
connector A-131, and repair if necessary.

• 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 

P.13A-542

.

a. Item 63: Rail 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

AK501327

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2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44

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-149

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 intermediate connector A-131, and 

repair if necessary. If intermediate 
connector is normal, check and repair 
harness between A-44 (terminal No. 1) rail 
pressure sensor connector and C-105 
(terminal No. 70) engine-ECU connector.

• Check power supply line for open 

circuit and damage.

NO : 

Repair or replace the connector.

AKA00089

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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

AK501327

1

2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44

TROUBLESHOOTING

DIESEL FUEL

13A-150

STEP 9. Perform resistance measurement at A-44 
rail 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-44 (terminal 
No. 3) rail pressure sensor connector and C-105 
(terminal No. 88) engine-ECU connector.

NOTE: Before checking harness, check intermediate 
connector A-131, and repair if necessary.

• Check earthing line for damage.

Q: Is the check result normal?

YES : 

Go to Step 7 .

NO : 

Repair the damaged harness wire.

AK501327

1

2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44

AKA00089

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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

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

AK501327

1

2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44

TROUBLESHOOTING

DIESEL FUEL

13A-151

STEP 12. Perform voltage measurement at A-44 
rail pressure sensor connector.

• Use special tool test harness (MB991658) to con-

nect connector, and measure at pick-up harness.

• Engine: Idle (after warning up)

• Voltage between terminal No. 2 and earth.

OK: 1.15 

− 1.75 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-44 (terminal 
No. 2) rail pressure sensor connector and C-105 
(terminal No. 64) 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 : 

Replace the common rail assembly.

NO : 

Repair the damaged harness wire.

AK501327

1

2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44

AKA00089

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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

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

AK501327

1

2

3

AB

A-44 (B)

Harness side 
connector

Connector: A-44