Mitsubishi Eclipse. Manual - part 292

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-661

STEP 7. Measure the power supply voltage at ECM 
connector C-53 <M/T> or PCM connector C-54 <A/T> by 
backprobing.
(1) Do not disconnect the ECM connector C-53 <M/T> or PCM 

connector C-54 <A/T>.

(2) Disconnect the power steering pressure switch connector 

B-19.

(3) Turn the ignition switch to the "ON" position.

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-662

(4) Measure the voltage between terminal No. 37 <M/T> or No. 

52 <A/T> and ground by backprobing.

• Voltage should be between battery positive voltage.

(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts) 

present?
YES : Go to Step 8.
NO :  Go to Step 9.

AK000308

3132 33 34 35 36 37 38

39 40 41 42 43 44 45 46

AI

<M/T>

C-53 HARNESS 
CONNECTOR: 
HARNESS SIDE

AK000309 AK

<A/T>

C-54 HARNESS 
CONNECTOR: 
HARNESS SIDE

41 42 43

44 45 46

47 48 49 50 51 52 53 54 55 56 57
58 59

60 61 62 63

64 65 66

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <2.4L>

13A-663

STEP 8. 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 : Repair harness wire between power steering 

pressure switch connector B-19 (terminal No. 1) and 
ECM connector C-53 (terminal No. 37) <M/T> or PCM 
connector C-54 (terminal No. 52) <A/T> because of 
open circuit. Then go to Step 14.

NO :  Repair or replace it. Refer to GROUP 00E, Harness 

Connector Inspection 

P.00E-2

. Then go to Step 14.

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-664

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 14.

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