Mitsubishi Galant. Manual — part 265

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-285

STEP 11. Check for harness damage between evaporative
emission purge solenoid connector B-04 terminal 1 and
PCM connector C-39 terminal 34.
Q: Is the harness wire in good condition?

YES : Replace the PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.

STEP 12. 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 P0443 is output?

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

ACX02514 AI

EVAPORATIVE
EMISSION
PUREGE
SOLENOID
VALVE

CONNECTOR:B-04

AK000280

CONNECTOR : C-39

PCM

AW

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-286

DTC P0446: Evaporative Emission Control System Vent Control Malfunction

AK000544

RED-

WHITE

RED-

WHITE

RED-

WHITE

3 4

1 2

RED

1

8

7

10

5

3

1 2

4

6

9

2

RED

RED

RED

YELLO

W

YELLO

W

YELLO

W

YELLO

W

A-21X

1

2

3

4

D-13
MU802779

BATTERY

1

2

POWERTRAIN CONTROL
MODULE(PCM)

MFI
RELAY

EVAPORATIVE
EMISSION
VENTILATION
SOLENOID

D-15
MU802355

7

14

26

9

18

24

35

C-17

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

C-39
(MU803784)

2

3 4

5 6

7 8

9

11 12 13 14 15 16 17 18 19 20

30

21 22 23

24 25

26 27 28 29

3132 33

34 35

1

10

1 2 3 4 5

6 7 8 9 10

1112 13 14 1516 171819 20 2122

C-71
MU801461

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-287

CIRCUIT OPERATION

The evaporative emission ventilation solenoid
power is supplied from the MFI relay (terminal 1).

The PCM controls the evaporative emission
ventilation solenoid ground by turning the power
transistor in the PCM ON and OFF.

TECHNICAL DESCRIPTION

To judge if there is open circuit in the evaporative
emission ventilation solenoid drive circuit, PCM
measures the surge voltage of the evaporative
emission ventilation solenoid coil.

The PCM drives the evaporative emission
ventilation solenoid for 30 milliseconds. After the
solenoid is turned off, the PCM will check if the
solenoid coil produces a surge voltage of 2V or
more.

DTC SET CONDITIONS

Test Conditions

Battery positive voltage is between 10 V and 16
V.

The engine is running.

Judgment Criteria

If a surge voltage of 2 V or more is not detected
within 30 milliseconds after the evaporative
emission ventilation solenoid is driven, the PCM
judges that the drive circuit is open.

Only one monitor during one drive cycle.

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

Evaporative emission ventilation solenoid failed.

Open or shorted evaporative emission ventilation
solenoid circuit, or loose connector.

PCM failed.

AK000555AB

CONNECTOR : A-21X

MFI RELAY

ACX02516

CONNECTOR : D-13

AG

EVAPORATIVE
EMISSION PURGE
SOLENOID VALVE

FUEL TANK

AK000565AB

CONNECTOR:D-15

AK000566AB

CONNECTOR:C-17

AK000567AB

CONNECTOR:C-71

AK000280

CONNECTOR : C-39

PCM

AW

MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS

TSB Revision

MULTIPORT FUEL INJECTION (MFI) <3.0L>

13B-288

DIAGNOSIS

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

STEP 1. Using scan tool MB991502, check actuator test
item 29: Evaporative Emission Ventilation Solenoid.

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) Set scan tool MB991502 to the actuator test mode for item

29, Evaporative emission ventilation solenoid.

An operation sound should be heard and vibration
should be felt when the evaporative emission ventilation
solenoid is operated.

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

Q: Is the solenoid operating properly?

YES : It can be assumed that this malfunction is intermittent.

Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points(

P.00-8

).

NO : Go to Step 2.

STEP 2 Check connector D-13 at the evaporative emission
ventilation solenoid for damage.
Q: Is the connector in good condition?

YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection(

P.00E-2

). Then go to Step 12.

AC003081 AB

16 PIN

MB991502

ACX02516

CONNECTOR : D-13

AG

EVAPORATIVE
EMISSION PURGE
SOLENOID VALVE

FUEL TANK

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Текст

Политика конфиденциальности