Mitsubishi Outlander (2003+). Manual — part 59

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-99

STEP 4. Measure voltage at B-04 No. 3 injector
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 .

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

Q: Is the check result normal?

YES :

Check and repair harness between B-17X

(terminal No. 1) engine control relay
connector and B-04 (terminal No. 1) No. 3
injector connector.

œ

Check power supply line for
open/short circuit.

NO :

Repair.

STEP 6. Connector check: B-17X engine control
relay connector

Q: Is the check result normal?

YES :

Go to Step 7 .

NO :

Repair.

AK300265

M

1

2

Harness side connector

Connector: B-04

AE

B-04 (GR)

AK300255

2

1

3

4

Relay box’s
triangle marks

AB

CONNECTOR: B-17X

B-17X

Harness side
connector

AK300265

M

1

2

Harness side connector

Connector: B-04

AE

B-04 (GR)

AK300255

2

1

3

4

Relay box’s
triangle marks

AB

CONNECTOR: B-17X

B-17X

Harness side
connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-100

STEP 7. Check harness between B-17X (terminal
No. 1) engine control relay connector and B-04
(terminal No. 1) No. 3 injector connector.

œ

Check power supply line for damage.

Q: Is the check result normal?

YES :

Go to Step 8 .

NO :

Repair.

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

Q: Is the check result normal?

YES :

Go to Step 9 .

NO :

Repair.

STEP 9. Check harness between B-04 (terminal
No. 2) No. 3 injector connector and C-134
(terminal No. 2) engine-ECU connector.

œ

Check output line for open/short circuit and dam-
age.

Q: Is the check result normal?

YES :

Go to Step 10 .

NO :

Repair.

AK300255

2

1

3

4

Relay box’s
triangle marks

AB

CONNECTOR: B-17X

B-17X

Harness side
connector

AK300265

M

1

2

Harness side connector

Connector: B-04

AE

B-04 (GR)

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

AK300265

M

1

2

Harness side connector

Connector: B-04

AE

B-04 (GR)

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-101

STEP 10. Measure signal waveform at C-134
engine-ECU connector (Use oscilloscope).

œ

Engine: Idling

œ

Transmission: Neutral

œ

Voltage between terminal No. 24 and earth.

OK: Waveform should be display on Inspec-
tion procedure using an oscilloscope (Refer
to

3

13A



).

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.

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-102

Code No. P0204: No. 4 Injector System

AK300272

2

1

2

1

2

1

2

1

1

2

3

4

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

B-17X

Engine control relay

Injector
No. 1

Injector
No. 2

Injector
No. 3

Injector
No. 4

B-01

B-02

B-04

B-05

1

1

1

1

1

2

Y

Y-R

Y-G

L

2

2

2

2

Engine-ECU

1

14

2

15

Injector circuit

Battery

4

W-B

W-B

R

R

R

R

R

3

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

C-134