Mitsubishi Eclipse. Manual - part 297

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-681

STEP 9. Check connector C-53 at ECM <M/T> or connector 
C-54 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 10.
NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 11.

AK300417

34 33 32

36 35

37

42

45

31

39

38

46

40

41

43

44

CONNECTOR: C-53 <M/T>

C-53 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300412

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-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-682

STEP 10. Check for harness damage between generator 
connector B-45 (terminal No. 4) and ECM connector C-53 
(terminal No. 41) <M/T> or PCM connector C-54 (terminal 
No. 54) <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the generator. Then go to Step 11.
NO :  Repair it. Then go to Step 11.

AK300740

2

1

3

4

CONNECTOR: B-45

AB

B-45 (GR)

HARNESS CONNECTOR:
COMPONENT SIDE

AK300417

34 33 32

36 35

37

42

45

31

39

38

46

40

41

43

44

CONNECTOR: C-53 <M/T>

C-53 (G)

AB

HARNESS CONNECTOR:
COMPONENT SIDE

AK300412

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-54 (GR)

CONNECTOR: C-54 <A/T>

AB

HARNESS CONNECTOR:
COMPONENT SIDE

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-683

STEP 11. Using scan tool  MB991958, read the diagnostic 
trouble code (DTC).

CAUTION

To prevent damage to scan tool MB991958, always turn the 
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P0622 set?

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

AK300810

AB

MB991911

16-PIN

MB991827

MB991824 

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-684

DTC P1603: Battery Backup Line Malfunction

AK103314

RED-WHITE

RED-WHITE

RED-WHITE

WHITE

WHITE

BATTERY

80 <M/T>
66 <A/T>

BATTERY
BACKUP

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

9

20A

8

RELAY BOX

TO MFI RELAY

 C-54 <A/T>

(MU803781)

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

82

78

81

80

89 90 91 92

79

87

71

74

73

72

76

75

77

85

88

83 84

86

 C-60 <M/T>
(MU803772)

Battery Backup Circuit

7

2

6

3

5

1

4

8

C-07

MU801333