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

23

3

2

OFF

ON

4

1

A-115

3

A-56

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