Mitsubishi L200. Manual - part 102

TROUBLESHOOTING

DIESEL FUEL

13A-204

STEP 4. Check harness between C-103 (terminal 
No. 115) engine-ECU connector and A-45 
(terminal No. 6) EGR valve assembly connector.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 5 .

NO : 

Repair the damaged harness wire.

STEP 5. Check harness between C-103 (terminal 
No. 130) engine-ECU connector and A-45 
(terminal No. 4) EGR valve assembly connector.

• Check output line for damage.

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. 81) engine-ECU connector and A-45 (terminal 
No. 2) EGR valve assembly connector.

AKA00090

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C-103 (B)

C-103 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-103

AB

AK501331

1

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6

AB

Harness side 
connector

A-45 (GR)

Connector: A-45

AKA00090

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C-103 (B)

C-103 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-103

AB

AK501331

1

2

3

4

5

6

AB

Harness side 
connector

A-45 (GR)

Connector: A-45

TROUBLESHOOTING

DIESEL FUEL

13A-205

• Check earthing line for damage.

Q: Is the check result normal?

YES : 

Go to Step 7 .

NO : 

Repair the damaged harness wire.

STEP 7. Check harness between C-105 (terminal 
No. 71) engine-ECU connector and A-45 (terminal 
No. 3) EGR valve assembly connector.

• Check power supply line for damage.

Q: Is the check result normal?

YES : 

Go to Step 8 .

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

AK501331

1

2

3

4

5

6

AB

Harness side 
connector

A-45 (GR)

Connector: A-45

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

AK501331

1

2

3

4

5

6

AB

Harness side 
connector

A-45 (GR)

Connector: A-45

TROUBLESHOOTING

DIESEL FUEL

13A-206

STEP 8. Check harness between C-105 (terminal 
No. 57) engine-ECU connector and A-45 (terminal 
No. 1) EGR valve assembly connector.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Repair the damaged harness wire.

 STEP 9. Check EGR valve itself.

• Check EGR valve itself [Refer to GROUP 17 − 

Emission Control 

− Exhaust Gas Recirculation 

(EGR) System 

− EGR Valve (DC motor) Check ].

Q: Is the check result normal?

YES : 

Go to Step 10 .

NO : 

Replace the EGR valve assembly.

STEP 10. Check EGR passage for deposits.

• Check the EGR valve, the EGR pipe and the 

inside of the EGR cooler for deposits. (Refer to 
GROUP 17 

− Emission Control − EGR Valve And 

EGR Cooler 

− Removal And Installation ).

Q: Is the check result normal?

YES : 

Go to Step 11 .

NO : 

Cleaning or replace the EGR valve, EGR 
pipe and EGR cooler.

STEP 11. Connector check: A-135 air flow sensor 
connector.

Q: Is the check result normal?

YES : 

Go to Step 12 .

NO : 

Repair or replace the connector.

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

AK501331

1

2

3

4

5

6

AB

Harness side 
connector

A-45 (GR)

Connector: A-45

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

TROUBLESHOOTING

DIESEL FUEL

13A-207

STEP 12. Check harness between A-135 (terminal 
No. 4) air flow sensor connector and C-103 
(terminal No. 155) engine-ECU connector.

• Check earthing line for damage.

Q: Is the check result normal?

YES : 

Go to Step 13 .

NO : 

Repair the damaged harness wire.

STEP 13. Check harness between A-135 (terminal 
No. 3) air flow sensor connector and C-103 
(terminal No. 140) engine-ECU connector.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 14 .

NO : 

Repair the damaged harness wire.

STEP 14. Replace the air flow sensor.

• After replacing the air flow sensor, re-check the 

trouble symptoms.

Q: Is the check result normal?

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

AKA00090

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C-103 (B)

C-103 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-103

AB

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

AKA00090

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C-103 (B)

C-103 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-103

AB