Mitsubishi Outlander (2003+). Manual - part 45

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-43

STEP 6. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Check and repair harness between B-108 

(terminal No. 1) engine coolant temperature 
sensor connector and C-137 (terminal No. 
83) engine-ECU connector.

œ

Check output line for open circuit.

NO : 

Repair.

STEP 7. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal? 

YES : 

Go to Step 8 .

NO : 

Repair.

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-44

STEP 8. Check harness between B-108 (terminal 
No. 1) engine coolant temperature sensor 
connector and C-137 (terminal No. 83) engine-
ECU connector.

œ

Check output line for short circuit.

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Repair.

STEP 9. MUT-II data list

œ

Refer to Data list reference table 

3

13A



.

a. Item 21: Engine coolant temperature sensor

OK:

Engine cold state: At ambient temperature 

(atmospheric temperature) or equivalent.

Engine hot state: At 80 

-

 120 

•

C

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.

STEP 10. Measure voltage at B-108 engine 
coolant temperature sensor connector.

œ

Disconnect connector and measure at harness 
side.

œ

Voltage between terminal No. 2 and earth.

OK: 2 

W

 or less

Q: Is the check result normal?

YES : 

Go to Step 13 .

NO : 

Go to Step 11 .

STEP 11. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 12 .

NO : 

Repair.

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-45

STEP 12. Check harness between B-108 (terminal 
No. 2) engine coolant temperature sensor 
connector and C-137 (terminal No. 92) engine-
ECU connector.

œ

Check earthing line for open circuit and damage.

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Repair.

STEP 13. Measure voltage at B-108 engine 
coolant temperature sensor connector.

œ

Use special tool test harness (MB991658) to con-
nect connector, and measure at pick-up harness.

œ

Ignition switch: ON

œ

Voltage between terminal No. 1 and earth.

OK:

Engine coolant temperature at 

-

20

•

C: 3.9 

-

 4.5 

V

Engine coolant temperature at 0

•

C: 3.2 

-

 3.8 V

Engine coolant temperature at 20

•

C: 2.3 

-

 2.9 

V

Engine coolant temperature at 40

•

C: 1.3 

-

 1.9 

V

Engine coolant temperature at 60

•

C: 0.7 

-

 1.3 

V

Engine coolant temperature at 80

•

C: 0.3 

-

 0.9 

V

Q: Is the check result normal?

YES : 

Go to Step 9 .

NO : 

Go to Step 14 .

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

TROUBLESHOOTING

MULTIPORT FUEL INJECTION (MFI)

13A-46

STEP 14. Connector check: C-137 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 15 .

NO : 

Repair.

STEP 15. Check harness between B-108 (terminal 
No. 1) engine coolant temperature sensor 
connector and C-137 (terminal No. 83) engine-
ECU connector.

œ

Check output line for damage.

Q: Is the check result normal?

YES : 

Go to Step 16 .

NO : 

Repair.

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector

AK300261

1

2

Harness side
connector

B-108 (B)

AB

Connector: B-108

AK300254

82

78

8180

89

90

91

92

79

87

71

74 73 72

76 75

77

85

88

83

84

86

AB

CONNECTOR: C-137

C-137

Harness side connector