Mitsubishi Galant (2004+). Manual — part 906
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-441
STEP 8. Check harness connector B-20 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 9.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK303092
25
21
24 23 22
29 28 27 26
34 33 32 31 30
38 37 36 35
43 42 41 40 39
CONNECTOR: B-20
B-20
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-442
STEP 9. Check for short circuit to ground between fuel
tank temperature sensor connector D-18 (terminal No. 3)
and PCM connector B-20 (terminal No. 41).
NOTE: Check harness after checking intermediate connector
C-25. If intermediate connector is damaged, repair or replace it.
Refer to GROUP 00E, Harness Connector Inspection
Then go to Step 12.
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.
AK303840
1
2
3
4
5
SERVICE
HOLE
AB
CONNECTOR: D-18
D-18 (GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303092
25
21
24 23 22
29 28 27 26
34 33 32 31 30
38 37 36 35
43 42 41 40 39
CONNECTOR: B-20
B-20
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-443
STEP 10. Check harness connector B-20 at PCM for
damage.
Q: Is the harness connector in good condition?
YES : Go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK303092
25
21
24 23 22
29 28 27 26
34 33 32 31 30
38 37 36 35
43 42 41 40 39
CONNECTOR: B-20
B-20
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-444
STEP 11. Check for harness damage between fuel tank
temperature sensor connector D-18 (terminal No. 3) and
PCM connector B-20 (terminal No. 41).
NOTE: Check harness after checking intermediate connector
C-25. If intermediate connector is damaged, repair or replace it.
Refer to GROUP 00E, Harness Connector Inspection
Then go to Step 12.
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
Diagnostic Function
− OBD-II Drive Cycle − Procedure 6 −
Other Monitor
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0181 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
AK303840
1
2
3
4
5
SERVICE
HOLE
AB
CONNECTOR: D-18
D-18 (GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK303092
25
21
24 23 22
29 28 27 26
34 33 32 31 30
38 37 36 35
43 42 41 40 39
CONNECTOR: B-20
B-20
PCM
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AIR CLEANER
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