Mitsubishi Montero Sport (2004+). Manual — part 165
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-73
STEP 10. Check connector A-12 at the manifold absolute
pressure sensor and connector C-90 at PCM for damage.
Q: Is the 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 18.
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
AK103762
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
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-74
STEP 11. Check for short circuit to ground between
manifold absolute pressure sensor connector A-12
(terminal No. 3) and PCM connector C-90 (terminal No. 46).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 18.
NO : Repair it. Then go to Step 18.
STEP 12. Measure the ground voltage at manifold absolute
pressure sensor connector A-12 by backprobing.
(1) Do not disconnect the connector A-12.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 2 and ground by
backprobing.
• Voltage should be 0.5 volt or less.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage 0.5 volt or less?
YES : Go to Step 15.
NO : Go to Step 13.
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
AK103762
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
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
3
2
1
AK203038
A-12 HARNESS
CONNECTOR:
HARNESS SIDE
AF
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-75
STEP 13. Check connector A-12 at the manifold absolute
pressure sensor and connector C-90 at PCM for damage.
Q: Is the connector in good condition?
YES : Go to Step 14.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 18.
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
AK103762
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
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-76
STEP 14. Check for harness damage between manifold
absolute pressure sensor connector A-12 (terminal No. 2)
and PCM connector C-90 (terminal No. 57).
Q: Is the harness wire in good condition?
YES : Replace the PCM. Then go to Step 18.
NO : Repair it. Then go to Step 18.
STEP 15. Check connector A-12 at manifold absolute
pressure sensor for damage.
Q: Is the connector in good condition?
YES : Go to Step 16.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 18.
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
AK103762
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
AB
CONNECTOR: C-90
C-90(GR)
HARNESS CONNECTOR:
COMPONENT SIDE
AK200034
2 1
3
AB
CONNECTOR: A-12
A-12(B)
HARNESS
CONNECTOR:
COMPONENT
SIDE
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