Mitsubishi L200. Manual - part 152

TROUBLESHOOTING

DIESEL FUEL

13A-404

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.

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.

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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

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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

TROUBLESHOOTING

DIESEL FUEL

13A-405

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 

(Refer to 

P.13A-595

).

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 ).

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 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. P2228: Barometric Pressure Sensor Circuit Low Input

FUNCTION

• The barometric pressure sensor converts the bar-

ometric pressure into a voltage signal and inputs 
the signal to the engine-ECU.

• In response to the signal, the engine-ECU cor-

rects the fuel injection amount, etc.

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 barometric pressure sensor output voltage is 

1.60 V or less for 0.5 second.

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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-406

PROBABLE CAUSE

• Failed barometric pressure sensor

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13A-542

.

a. Item 5: Barometric pressure sensor

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 ). 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 ).

Code No. P2229: Barometric Pressure Sensor Circuit High Input

FUNCTION

• The barometric pressure sensor converts the bar-

ometric pressure into a voltage signal and inputs 
the signal to the engine-ECU.

• In response to the signal, the engine-ECU cor-

rects the fuel injection amount, etc.

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 barometric pressure sensor output voltage is 

4.80 V or less for 0.5 second.

PROBABLE CAUSE

• Failed barometric pressure sensor

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Refer to Data List Reference Table 

P.13A-542

.

a. Item 5: Barometric pressure sensor

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 ). 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 ).

TROUBLESHOOTING

DIESEL FUEL

13A-407

Code No. P2413: EGR System Performance

OPERATION

• System power is supplied from the engine-ECU 

(terminal No. 115) to the EGR valve (terminal No. 
6).

• The engine-ECU (terminal No. 130) turns on the 

power transistor to flow current to the EGR valve 
(terminal No. 4).

FUNCTION

• The engine-ECU performs duty control over the 

EGR valve (DC motor).

• The engine-ECU performs feedback control over 

the EGR valve based on the signals from the 
EGR position sensor.

TROUBLE JUDGMENT

Check Condition

• Ignition switch is in "ON" position

Judgment Criterion

• The EGR valve in sticking state (a high duty state 

continues for the predetermined time or more) is 
repeatedly detected.

PROBABLE CAUSES

• Failed EGR valve

• Open/short circuit or harness damage in EGR 

valve circuit or loose connector contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code

Q: Is any other diagnosis code than P2413 output?

YES : 

Inspection chart for diagnosis codes (Refer 

to 

P.13A-21

).

NO : 

Go to Step 2 .

STEP 2. Check EGR valve itself

• Check EGR valve itself [Refer to GROUP 17 − 

Emission Control System 

− Exhaust Gas Recir-

culation (EGR) System 

− EGR valve check  ].

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Replace the EGR valve assembly.

STEP 3. Connector check: C-105 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 4 .

NO : 

Repair or replace the connector.

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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