Mitsubishi Outlander (2003+). Manual - part 90

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-223

STEP 16. Check ignition coil itself.

œ

Check ignition coil itself (Refer to GROUP 16 

-

 

Ignition System 

-

 On-vehicle Service 

3

16



).

Q: Is the check result normal?

YES : 

Go to Step 17 .

NO : 

Replace ignition coil.

STEP 17. Check compression pressure.

œ

Check compression pressure (Refer to GROUP 
11A 

-

 On-vehicle Service 

3

11A



).

Q: Is the check result normal?

YES : 

Go to Step 18 .

NO : 

Repair.

STEP 18. Check injector for spraying condition.

œ

Check each injector for spray condition (Refer to 

3

13A



).

Q: Does trouble symptom persist?

YES : 

Go to Step 19 .

NO : 

Replace injector.

STEP 19. Replace catalytic converter.

œ

After replacing the catalytic converter, re-check 
the trouble symptoms.

Q: Does trouble symptom persist?

YES : 

Replace engine-ECU.

NO : 

Check end

Inspection Procedure 19: Battery Rundown

COMMENT ON TROUBLE SYMPTOM

œ

Failure is possibly caused by failed alternator, 
failed generation control circuit or other faults.

PROBABLE CAUSE

œ

Failed battery

œ

Alternator G terminal short-circuited

œ

Failed alternator

œ

Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. Check battery voltage.

œ

Measure battery voltage during cranking.

OK: 8 V or more

Q: Is the check result normal?

YES : 

Go to Step 2 .

NO : 

Check battery (Refer to GROUP 54 

-

 

Battery 

-

 On-vehicle Service 

-

 Battery test 

3

54A



).

STEP 2. Connector check: B-19 intermediate 
connector

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Repair.

AK300294

1

2

3

4

5

6

AB

CONNECTOR: B-19

B-19 (B)

Female side
connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-224

STEP 3. Measure voltage at B-19 intermediate 
connector.

œ

Disconnect connector, and measure at male con-
nector side.

œ

Ignition switch: ON

œ

Voltage between terminal No. 5 and earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 5 .

NO : 

Go to Step 4 .

STEP 4. Connector check: C-303 ignition switch 
connector

Q: Is the check result normal?

YES : 

Check intermediate connectors C-04, C-05, 

C-105, C-203 and C-205, and repair if 
necessary. If intermediate connectors are 
normal, check and repair harness between 
B-19 (terminal No. 5) intermediate 
connector and C-303 (terminal No. 2) 
ignition switch connector.

œ

Check power supply line for 
open/short circuit.

NO : 

Repair.

AK300295

1 2 3

4 5 6

AB

CONNECTOR: B-19

B-19 (B)

Male side
connector

1

2

3

4

5

6

AK300304

CONNECTOR: C-303

C-303

Harness side
connector

AB

AK300295

1 2 3

4 5 6

AB

CONNECTOR: B-19

B-19 (B)

Male side
connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-225

STEP 5. Measure voltage at B-19 intermediate 
connector.

œ

Disconnect connector, and measure at female 
connector side.

œ

Ignition switch: ON

œ

Voltage between terminal No. 4 and earth.

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 10 .

NO : 

Go to Step 6 .

STEP 6. Connector check: B-30 alternator 
connector

Q: Is the check result normal?

YES : 

Go to Step 7 .

NO : 

Repair.

STEP 7. Check harness between B-19 (terminal 
No. 4) intermediate connector and B-30 (terminal 
No. 1) alternator connector.

œ

Check output line for short circuit.

Q: Is the check result normal?

YES : 

Go to Step 8 .

NO : 

Repair.

AK300294

1

2

3

4

5

6

AB

CONNECTOR: B-19

B-19 (B)

Female side
connector

AK300296

2

1

3

4

AB

Harness side
connector

CONNECTOR: B-30

B-30 (GR)

AK300294

1

2

3

4

5

6

AB

CONNECTOR: B-19

B-19 (B)

Female side
connector

AK300296

2

1

3

4

AB

Harness side
connector

CONNECTOR: B-30

B-30 (GR)

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-226

STEP 8. Check harness between B-19 (terminal 
No. 5) intermediate connector and B-30 (terminal 
No. 3) alternator connector.

œ

Check power supply line for open/short circuit.

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Repair.

STEP 9. Check harness between B-30 (terminal 
No. 3) alternator connector and C-303 (terminal 
No. 2) ignition switch connector.

NOTE: Before checking harness, check intermediate 
connectors C-04, C-05, C-105, C-203 and C-205 and 
repair if necessary.

œ

Check power supply line for damage.

Q: Is the check result normal?

YES : 

Replace alternator.

NO : 

Repair.

STEP 10. Connector check: C-135 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 11 .

NO : 

Repair.

AK300294

1

2

3

4

5

6

AB

CONNECTOR: B-19

B-19 (B)

Female side
connector

AK300296

2

1

3

4

AB

Harness side
connector

CONNECTOR: B-30

B-30 (GR)

AK300296

2

1

3

4

AB

Harness side
connector

CONNECTOR: B-30

B-30 (GR)

1

2

3

4

5

6

AK300304

CONNECTOR: C-303

C-303

Harness side
connector

AB

AK300256

34 33 32

36 35

37

42

45

31

39

38

46

40

41

43

44

AB

CONNECTOR: C-135

C-135

Harness side connector