Mitsubishi Eclipse. Manual - part 557

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-771

STEP 4. Check for open circuit or harness damage 
between fuel level sensor connector D-17 (terminal No. 2) 
and ECM connector C-62 (terminal No. 97) <M/T> or PCM 
connector C-55 (terminal No. 60) <A/T>.

AK300446

1

2

3

4

5

D-17 (GR)

AB

CONNECTOR: D-17

HARNESS CONNECTOR:
COMPONENT SIDE

AK300462

42

43

48

49

50

51

52

53

54

55

56

57

46 45 44

58

59

60

61

62

63

64

65

66

47

41

CONNECTOR: C-55 <A/T>

C-55 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300445

80

87

81

94

85

82

84

93

86

98

99

74

92

73

83

88

91

95

97 96

100

89

78

71

90

76

77

75

72
79

CONNECTOR: C-62 <M/T>

C-62 (GR)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-772

NOTE: Check harness after checking intermediate connectors 
C-90, and C-28. If intermediate connectors are damaged, 
repair or replace them. Refer to GROUP 00E, Harness Con-
nector Inspection 

P.00E-2

. Then go to Step 6.

Q: Is the harness wire in good condition?

YES : Go to Step 5.
NO :  Repair it. Then go to Step 6.

STEP 5. Check the trouble symptoms.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Procedure 6 − 

Other Monitor 

P.13B-7

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0461 set?

YES : Replace the ECM or PCM. Then go to Step 6.
NO :  It can be assumed that this malfunction is intermittent. 

Refer to GROUP 00, How to Use Troubleshooting/ 
Inspection Service Points 

P.00-6

.

STEP 6. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to 

Diagnostic Function 

− OBD-II Drive Cycle − Procedure 6 − 

Other Monitor 

P.13B-7

.

(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0461 set?

YES : Retry the troubleshooting.
NO :  The inspection is complete.

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-773

DTC P0500: Vehicle Speed Sensor <M/T>

AK103094

3

1

2 3

3

2

4 5 6

1 2 3
4 5 6

1

WHITE-

BLUE

WHITE-

BLUE

WHITE-

BLUE

BLA

CK

BLA

CK

BLA

CK-

WHITE

BLA

CK-

WHITE

BLA

CK-

WHITE

BLA

CK-

WHITE

GREEN

1

2

5V

     B-39
(MU802723)

VEHICLE SPEED
SENSOR

B-36

ENGINE CONTROL
MODULE (ECM)

R

IG2

ST

LOCK

ACC

IG1

    C-111
MU801331

IGNITION
SWITCH

C-87

2

6

11

1

2

2

3

3

1

4

4

1

JOINT
CONNECTOR (2)

JUNCTION
BLOCK

80

16

15

18

17

14

20

22

21

9

7

1 2

5

19

3

33

32

30 31

29

28

25

24

23

27

26

6

11

13

4

10

8

12

C-78

7 8

5

3 4

35

34

10 11 12

2122 23 24

13 14 15

25 26 27

16

28

17

18 19 20

29

30 31

32 33

36 37

38

9

1 2

6

C-28

AUTO-CRUISE CONTROL SYSTEM
CENTRAL DOOR LOOKING SYSTEM
DOME LIGHT AND 
LUGGAGE COMPARTMENT
LIGHT <ECLIPSE>
DOME LIGHT AND TRUNK 
LIGHT <ECLIPSE SPYDER>
METER AND GAUGE
MULTI CENTER DISPLAY

80

87

81

94

85

82

84

93

86

98

99

74

92

73

83

88

91

95

97

96

100

89

78

71

90

76 77

75

72
79

     C-62
(MU803783)

Vehicle Speed Sensor Circuit

1

6

4 5

11

10

12 13 14

8 9

7

2 3

C-112

MU801857

7.5A

23

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-774

.

CIRCUIT OPERATION

• A 5-volt voltage is applied to the vehicle speed 

sensor output terminal (terminal No. 3) from the 
ECM (terminal No. 80). The vehicle speed sensor 
generates a pulse signal when the output termi-
nal is opened and grounded.

.

TECHNICAL DESCRIPTION

• The vehicle speed sensor converts the vehicle 

speed into pulse signals and inputs them to the 
ECM.

• The vehicle speed sensor outputs a pulse signal 

while the vehicle is driven.

• The ECM checks whether the pulse signal is out-

put.

.

AK300102

VEHICLE
SPEED 
SENSOR

B-39 (B)

AB

CONNECTOR: B-39

AK300116

CONNECTOR: C-87

AB

C-87

AK300094

CONNECTOR: C-62 <M/T>

ECM

AB

C-62 (GR)

AK300125

CONNECTOR: C-112

AB

C-112

AK300117

CONNECTOR: C-78

AB

C-78

AK300119

CONNECTOR: C-28

AB

C-28

AK300101

CONNECTOR: B-36

AB

B-36 (B)

AK300124

CONNECTOR: C-111

AB

C-111