Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual — part 301

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-403

STEP 7. Check connector C-58 at ECM <M/T> or connector
C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?

YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection (

P.00E-2

). Then go to Step 11.

STEP 8. Check for open circuit and short circuit to ground
between generator connector B-45 terminal 4 and ECM
connector C-58 terminal 52 <M/T> or PCM connector C-55
terminal 54 <A/T>.
Q: Is the harness wire in good condition?

YES : Replace the ECM or PCM. Then go to Step 11.
NO : Repair it. Then go to Step 11.

STEP 9. Check connector C-58 at ECM <M/T> or connector
C-55 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.

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

AK000735AB

CONNECTOR:B-45

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-404

STEP 10. Check for harness damage between generator
connector B-45 terminal 4 and ECM connector C-58
terminal 52 <M/T> or PCM connector C-55 terminal 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.

STEP 11. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to,

Procedure 6

−

Other Monitor (

P.13B-4

).

(2) Check the diagnostic trouble code (DTC).

Q: Is the DTC P1500 is output?

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

AK000735AB

CONNECTOR:B-45

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-405

DTC P1603: Battery Backup Line Malfunction

AK000736

ORANGE-

BLA

CK

ORANGE-

BLA

CK

ORANGE-

BLA

CK

ORANGE-

BLA

CK

WHITE

WHITE

BATTERY

66<A/T>

60<M/T>

BATTERY
BACK UP

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

13

15 16

26 27 28 29

32 33 34

17 18 19 20 21 22 23 24 25

30 31

36 37

35

38

10

11 12 13

1 2 3

4 5 6 7 8 9

14

25

C-89

27

C-28

C-28

C-89

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

4

DEDICATED
FUSE

65

43
50

42
49

41

48
60 61

64

46 47
58 59
67 68

45

56
66

52

51

44

53

62

54

63

57

55

C-58<M/T>
(MU803782)

C-55<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

6

9

JOINT
CONNECTOR(2)

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

AK000733AC

CONNECTOR:C-28

AK000312AG

CONNECTOR:C-78

MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>

13B-406

TECHNICAL DESCRIPTION

•

The ECM <M/T> or PCM <A/T> is checks the
open circuit of battery backup line.

DTC SET CONDITIONS

Check Conditions

•

Ignition switch: ON

Judgement Criteria

•

The backup memory is lost.

TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are:)

•

Open or shorted battery backup line, or loose
connector.

•

ECM failed. <M/T>

•

PCM failed. <A/T>

DIAGNOSIS

Required Special Tools
MB991502: Scan Tool (MUT-II)

STEP 1. Check if the battery terminal is disconnected.

Q: Is the battery terminal disconnected before reading the

DTC?
YES : Turn the ignition switch to the "LOCK" (OFF) position,

and then in 10 seconds turn the ignition switch to the
"ON" position. Then go to Step 2.

NO : Go to Step 3.

STEP 2. Using scan tool MB991502, read the diagnostic
trouble code (DTC).

CAUTION

To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 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 the DTC P1603 is output?

YES : Go to Step 3.
NO : The inspection is complete.

AK000345AE

CONNECTOR:C-89

AK000225

CONNECTOR : C-58<M/T>, C-55<A/T>

C-55

C-58

PCM<A/T>

ECM<M/T>

AI

AKX01177

16 PIN

MB991502

AB