Mitsubishi L200. Manual - part 60

TROUBLESHOOTING

DIESEL FUEL

13A-36

STEP 7. Connector check: C-105 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Check and repair harness between A-56 

(terminal No. 1) variable geometry control 
solenoid valve connector and C-105 
(terminal No. 17) engine-ECU connector.

• Check output line for open/short 

circuit.

NO : 

Repair or replace the connector.

STEP 8. Connector check: C-105 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 9 .

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

AK900982

2 1

AC

A-56 (BR)

Harness side
connector

Connector: A-56

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-37

STEP 9. Check harness between A-56 (terminal 
No. 1) variable geometry control solenoid valve 
connector and C-105 (terminal No. 17) engine-
ECU connector.

• Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 10 .

NO : 

Repair the damaged harness wire.

STEP 10. Check harness between A-56 (terminal 
No. 2) variable geometry control solenoid valve 
connector and A20X (terminal No. 3) engine 
control relay connector.

• Check power supply line for damage.

Q: Is the check result normal?

YES : 

Go to Step 11 .

NO : 

Repair the damaged harness wire.

STEP 11. M.U.T.-III actuator test

• Item 36: Variable geometry control solenoid valve

OK: The variable geometry actuator is oper-
ated

Q: Is the check result normal?

AK900982

2 1

AC

A-56 (BR)

Harness side
connector

Connector: A-56

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

AK900982

2 1

AC

A-56 (BR)

Harness side
connector

Connector: A-56

AK501321

2

1

3
4

Relay box's side 
connector

A-20X

Connector: A-20X

AC

TROUBLESHOOTING

DIESEL FUEL

13A-38

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, 
carry out the forcible DPF regeneration. 
(Refer to GROUP 17 

− Emission Control − 

Diesel Particulate Filter (DPF) System 

− 

Forcible DPF Regeneration ).

TROUBLESHOOTING

DIESEL FUEL

13A-39

Code No. P0048: Variable Geometry Control Solenoid Valve Circuit High Input <Euro5>

OPERATION

• Power is supplied to the variable geometry con-

trol solenoid valve (terminal No. 2) from the 
engine control relay (terminal No. 3).

• The engine-ECU (terminal No. 17) makes the 

power transistor in the unit be in "ON" position, 
and that makes currents go on the variable 
geometry control solenoid valve (terminal No. 1).

AKA00128

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Engine control relay

A-20X

17

Engine-ECU

Variable geometry
control solenoid valve

1

2

Variable geometry control solenoid valve circuit

R

W-R

C-105

To engine-ECU

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

10

20A

Fusible link

Relay 
box

W-R

W-B

W-B

W-B

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3

2

OFF

ON

4

1

A-115

3

A-56

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