Mitsubishi Outlander (2003+). Manual — part 70

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-143

FUNCTION

œ

In response to the signal from the engine-ECU,
the EGR control solenoid valve controls the oper-
ation of the EGR valve.

TROUBLE JUDGMENT

Check Conditions

œ

Except the engine stalling

œ

The battery voltage is 10

-

16 V.

Judgment Criteria

œ

If the off surge voltage from the motor coil is not
generated when the EGR valve control motor is
driven.

PROBABLE CAUSE

œ

Failed EGR control solenoid valve

œ

Open/short circuit in EGR control solenoid valve
circuit or loose connector contact

œ

Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. MUT-II actuator test

œ

Refer to Actuator test reference table

3

13A

.

a. Item 10: EGR control solenoid valve

OK: Operating sound can be heard and the
valve vibrates.

Q: Is the check result normal?

YES :

Intermittent malfunction (Refer to GROUP

00

-

How to Use

Troubleshooting/Inspection Service Points

3

00

).

NO :

Go to Step 2 .

STEP 2. Connector check: B-102 EGR control
solenoid valve connector

Q: Is the check result normal?

YES :

Go to Step 3 .

NO :

Repair.

STEP 3. Measure resistance at B-102 EGR
control solenoid valve connector.

œ

Disconnect connector, and measure at solenoid
valve side.

œ

Resistance between terminal No. 1 and No. 2.

OK: 29

-

35

W

(at 20

•

C)

Q: Is the check result normal?

YES :

Go to Step 4 .

NO :

Replace EGR control solenoid valve.

STEP 4. Measure voltage at B-102 EGR control
solenoid valve connector.

œ

Disconnect connector, and measure at harness
side.

œ

Ignition switch: ON

œ

Voltage between terminal No. 1 and earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 6 .

NO :

Go to Step 5 .

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-144

STEP 5. Connector check: B-17X engine control
relay connector

Q: Is the check result normal?

YES :

Check and repair harness between B-102

(terminal No. 1) EGR control solenoid valve
connector and B-17X (terminal No. 1)
engine control relay connector.

œ

Check power supply line for
open/short circuit.

NO :

Repair.

STEP 6. Measure voltage at C-134 engine-ECU
connector.

œ

Disconnect connector, and measure at harness
side.

œ

Ignition switch: ON

œ

Voltage between terminal No. 6 and earth.

OK: System voltage

Q: Is the check result normal?

YES :

Go to Step 8 .

NO :

Go to Step 7 .

AK300255

2

1

3

4

Relay box’s
triangle marks

AB

CONNECTOR: B-17X

B-17X

Harness side
connector

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300257

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

13 12

23

24

25

26

21

3

10

11

AB

CONNECTOR: C-134

C-134

Harness side connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-145

STEP 7. Connector check: C-134 engine-ECU
connector

Q: Is the check result normal?

YES :

Check and repair harness between B-102

(terminal No. 2) EGR control solenoid valve
connector and C-134 (terminal No. 6)
engine-ECU connector.

œ

Check output line for open/short
circuit.

NO :

Repair.

STEP 8. Connector check: C-134 engine-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 9 .

NO :

Repair.

AK300257

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

13 12

23

24

25

26

21

3

10

11

AB

CONNECTOR: C-134

C-134

Harness side connector

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300257

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

13 12

23

24

25

26

21

3

10

11

AB

CONNECTOR: C-134

C-134

Harness side connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-146

STEP 9. Check harness between B-102 (terminal
No. 2) EGR control solenoid valve connector and
C-134 (terminal No. 6) engine-ECU connector.

œ

Check output line for damage.

Q: Is the check result normal?

YES :

Go to Step 10 .

NO :

Repair.

STEP 10. Check harness between B-102 (terminal
No. 1) EGR control solenoid valve connector and
B-17X (terminal No. 1) engine control relay
connector.

œ

Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 11 .

NO :

Repair.

STEP 11. MUT-II actuator test

œ

Refer to actuator test reference table list

3

13A

.

œ

Item 10: EGR control solenoid valve

OK: Operating sound can be heard and the
valve vibrates.

Q: Is the check result normal?

YES :

Intermittent malfunction (Refer to GROUP

00

-

How to Use

Troubleshooting/Inspection Service Points

3

00

).

NO :

Replace engine-ECU.

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300257

1

14

4

19

5

22

6

17

8

15

9

18

7

20

16

2

13 12

23

24

25

26

21

3

10

11

AB

CONNECTOR: C-134

C-134

Harness side connector

AK300281

1

2

Harness side
connector

B-102 (BR)

AB

Connector: B-102

AK300255

2

1

3

4

Relay box’s
triangle marks

AB

CONNECTOR: B-17X

B-17X

Harness side
connector