Mitsubishi Eclipse. Manual — part 488

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-495

STEP 4. Check for short circuit to ground between fuel
tank temperature sensor connector D-17 and ECM
connector C-62 <M/T> or PCM connector C-55 <A/T>.

AK300453

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-496

NOTE: Check harness after checking intermediate connector
C-28 and C-90. If intermediate connector are damaged, repair
or replace it. Refer to GROUP 00E, Harness Connector Inspec-
tion

P.00E-2

. Then go to Step 5.

Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 5.
NO : Repair it. Then go to Step 5.

STEP 5. 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 P0182 set?

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

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-497

DTC P0183: Fuel Tank Temperature Sensor Circuit High Input

5 V

ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>

FUEL TEMPERATURE SENSOR
(INTEGRATED IN FUEL PUMP MODULE)

Fuel Temperature Sensor Circuit

12

3

1

37

BL

ACK

GRA

Y

-

GREEN

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

C-55 <A/T>

(MU803781)

AK101604

96 <M/T>
51 <A/T>

4

17

1

12 13 14

18

30

41

34

3

16

10

6 7

19

31

42

20

32

43

21

33

25

24

26

36

35

37

29

28

15

27

38

8 9

39 40

11

2

22

5

23

C-90

C-28

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

1 2 3

4 5

D-17
(MU802058)

GRA

Y

-

GREEN

GRA

Y

-

GREEN

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 <M/T>
(MU803783)

AK300244

CONNECTOR: C-55 <A/T>

AG

PCM

C-55 (GR)

AK300094

CONNECTOR: C-62 <M/T>

ECM

AB

C-62 (GR)

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-498

.

CIRCUIT OPERATION

• 5-volt voltage is applied to the fuel tank tempera-

ture sensor output terminal (terminal No. 3) from
the ECM (terminal No. 96) <M/T> or PCM (termi-
nal No. 51) <A/T> via the resistor in the ECM
<M/T> or PCM <A/T>.

• The fuel tank temperature sensor output voltage

increases when the resistance increases and
decreases when the resistance decreases. The
ground terminal (terminal No. 1) is grounded to
the vehicle body.

.

TECHNICAL DESCRIPTION

• The fuel tank temperature sensor converts the

fuel tank temperature to a voltage.

• The ECM <M/T> or PCM<A/T> detects the fuel

tank temperature in the fuel tank with this output
voltage.

.

DESCRIPTIONS OF MONITOR METHODS
Fuel tank temperature sensor output voltage is out of

specified range.

.

MONITOR EXECUTION
Continuous

.

MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)

Other Monitor (There is no temporary DTC stored

in memory for the item monitored below)

• Not applicable

Sensor (The sensor below is determined to be

normal)

• Engine coolant temperature sensor

• Intake air temperature sensor

.

AK300119

CONNECTOR: C-28

AB

C-28

AK300118

CONNECTOR: C-90

AB

C-90

AK300120AB

D-17 (GR)

CONNECTOR: D-17

FUEL TEMPERATURE
SENSOR
(INTEGRATED IN
FUEL PUMP MODULE)