Mitsubishi L200. Manual - part 76

TROUBLESHOOTING

DIESEL FUEL

13A-100

STEP 6. Check harness between A-135 (terminal 
No. 2) air flow sensor connector and C-105 
(terminal No. 62) engine-ECU connector.

• 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 data list

• Item 43: Intake air temperature sensor No. 1

OK: At ambient temperature (atmospheric 
temperature) or equivalent.

Q: Is the check result normal?

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 ).

STEP 8. Perform resistance measurement at A-
135 air flow sensor connector.

• Disconnect connector, and measure at harness 

side.

• Resistance between terminal No. 1 and earth.

OK: Continuity (2 

Ω or less)

Q: Is the check result normal?

YES : 

Go to Step 11 .

NO : 

Go to Step 9 .

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

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

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

TROUBLESHOOTING

DIESEL FUEL

13A-101

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-135 (terminal 
No. 1) air flow sensor connector and C-105 
(terminal No. 86) engine-ECU connector.

• Check earthing line for damage.

Q: Is the check result normal?

YES : 

Go to Step 7 .

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

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

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-102

STEP 11. Connector check: C-105 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 12 .

NO : 

Repair or replace the connector.

STEP 12. Check harness between A-135 (terminal 
No. 2) air flow sensor connector and C-105 
(terminal No. 62) engine-ECU connector.

• Check output line for damage.

Q: Is the check result normal? 

YES : 

Go to Step 7 .

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

AKA00399

AB

Harness side 
connector

A-135 (B)

Connector: A-135

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-103

Code No. P0113: EGR Gas Temperature Sensor Circuit High Input <Euro5>

OPERATION

• A power voltage of 5 V is applied to the EGR gas 

temperature sensor output terminal (terminal No. 
2) from the engine-ECU (terminal No. 36).

• The power voltage is earthed to the engine-ECU 

(terminal No. 30) from the EGR gas temperature 
sensor (terminal No. 1).

FUNCTION

• The EGR gas temperature sensor converts the 

EGR gas temperature into a voltage and inputs 
the voltage signal to the engine-ECU.

• The EGR gas temperature sensor is a kind of 

resistor, which has characteristics to reduce its 
resistance as the EGR gas temperature rises. 
Therefore, the sensor output voltage varies with 
the EGR gas temperature, and becomes lower as 
the EGR gas temperature rises.

TROUBLE JUDGMENT

Check Conditions

• Battery positive voltage is 8 − 16 V

• 2 seconds later after the ignition switch has been 

in "ON" position or the engine has started up.

Judgment Criterion

• The EGR gas temperature sensor output voltage 

is 4.96 V or more (the EGR gas temperature is 
below 

−50°C or equivalent).

PROBABLE CAUSES

• Failed EGR gas temperature sensor

• Open circuit in EGR gas temperature sensor cir-

cuit or loose connector contact

• Failed engine-ECU

AKB00262

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1 2

AB

30

36

EGR gas temperature
sensor

Engine-ECU 

1

2

EGR Gas Temperature Sensor Circuit

B-P

L-R

A-157

C-105

Wire colour code
B: Black  LG: Light green  G: Green  L: Blue  W: White  Y: Yellow  SB: Sky blue  BR: Brown  O: Orange  GR: Grey
R: Red  P: Pink  V: Violet  PU: Purple  SI: Silver