Mitsubishi Galant. Manual — part 289

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-381

STEP 4. Check connector B-11 at generator intermediate
connector for damage.
Q: Is the connector in good condition?

YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection(

P.00E-2

). Then go to Step 11.

STEP 5. Check connector B-46 at generator connector for
damage.
Q: Is the connector in good condition?

YES : Go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection(

P.00E-2

). Then go to Step 11.

STEP 6. Check the voltage at generator harness side
connector B-46.
(1) Disconnect the connector B-46 and measure at the harness

side.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 4 and ground.

•

Voltage should be between 4.8 and 5.2 volts

(4) Turn the ignition switch to the "LOCK"(OFF) position.

Q: Is the voltage normal?

YES : Go to Step 9.
NO : Go to Step 7.

AK000620 AB

CONNCTOR:B-11

AK000617

CONNECTOR:B-46

AF

AK000263

B-46 HARNESS
SIDE CONNECTOR

1

AC

2

3

4

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-382

STEP 7. Check connector C-40 at PCM 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-46 terminal 4 and PCM
connector C-40 terminal 54.
Q: Is the harness wire in good condition?

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

STEP 9. Check connector C-40 at PCM 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.

AK000280

CONNECTOR : C-40

PCM

AV

AK000617

CONNECTOR:B-46

AF

AK000280

CONNECTOR : C-40

PCM

AV

AK000280

CONNECTOR : C-40

PCM

AV

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-383

STEP 10. Check for harness damage between generator
connector B-46 terminal 4 and PCM connector C-40
terminal 54.
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.

AK000617

CONNECTOR:B-46

AF

AK000280

CONNECTOR : C-40

PCM

AV

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-384

DTC P1603: Battery Backup Line Malfunction

AK000730

RED

-BL

ACK

RED

-BL

ACK

RED

-BL

ACK

WHITE

WHITE

BATTERY

66

BATTERY
BACK UP

POWERTRAIN CONTROL
MODULE(PCM)

C-40
(MU803781)

13

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

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-66

27

C-17

C-17

C-66

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

AK000566AB

CONNECTOR:C-17

AK000632 AB

CONNECTOR:C-66