Mitsubishi Eclipse. Manual — part 237
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-441
STEP 9. Check for short circuit to ground between
camshaft position sensor connector B-09 (terminal No. 2)
and ECM connector C-60 (terminal No. 88) <M/T> or PCM
connector C-54 (terminal No. 56) <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 19.
NO : Repair it. Then go to Step 19.
AK300411
1
2
3
B-09 (B)
AB
CONNECTOR: B-09
HARNESS CONNECTOR:
COMPONENT SIDE
AK300415
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
CONNECTOR: C-60 <M/T>
AB
C-60 (G)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300412
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
C-54 (GR)
CONNECTOR: C-54 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-442
STEP 10. Measure the power supply voltage at camshaft
position sensor connector B-09.
(1) Disconnect the connector B-09 and measure at the harness
side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 3 and ground.
• Voltage should be battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 12.
NO : Go to Step 11.
STEP 11. Check connector A-18X at MFI relay for damage.
Q: Is the connector in good condition?
YES : Repair harness wire between MFI relay connector
A-18X (terminal No. 4) and camshaft position sensor
connector B-09 (terminal No. 3) because of open
circuit or short circuit to ground. Then go to Step 19.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 19.
AK300411
1
2
3
B-09 (B)
AB
CONNECTOR: B-09
HARNESS CONNECTOR:
COMPONENT SIDE
AKX01422
B-09 HARNESS
CONNECTOR:
COMPONENT SIDE
3 2 1
AQ
AK300454
2
1
3
4
CONNECTOR: A-18X
AB
A-18X
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-443
STEP 12. Check the continuity at camshaft position sensor
connector B-09.
(1) Disconnect the connector B-09 and measure at the harness
side.
(2) Check for the continuity between terminal No. 1 and
ground.
• Should be less than 2 ohms.
Q: Is the continuity normal?
YES : Go to Step 15.
NO : Go to Step 13.
AK300411
1
2
3
B-09 (B)
AB
CONNECTOR: B-09
HARNESS CONNECTOR:
COMPONENT SIDE
AKX01423
B-09 HARNESS
CONNECTOR:
COMPONENT SIDE
3 2 1
AL
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-444
STEP 13. Check connector C-53 at ECM <M/T> or
connector C-50 at PCM <A/T> 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 19.
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300414
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
31
32
33
34
35
1
10
C-50 (GR)
CONNECTOR: C-50 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
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