Mitsubishi Eclipse. Manual — part 592
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-911
INSPECTION PROCEDURE 2: Scan Tool Communication with ECM or PCM Is Not Possible.
AK101633
RED
-WHITE
RED
-WHITE
RED
-WHITE
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
JOINT
CONNECTOR (1)
DATA LINK
CONNECTOR
9
12
15
7
85
C-28
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-77
16
15
18
17
14
20
22
21
9
7
1 2
5
19
3
33
32
30 31
29
28
25
24
23
27
26
6
11
13
4
10
8
12
C-29
15
14
13
12
11
10
1 2 3 4 5 6 7 8
9
16
98
78
71
88 89
76 77
72
79
91
73
80
74
75
81
92
82 83
93
84 85
94
86 87
95 96
90
80
87
81
94
85
82
84
93
86
98
99
74
92
73
83
88
91
95
97
96
100
89
78
71
90
76 77
75
72
79
97
C-62 <M/T>
(MU803783)
C-59 <A/T>
(MU803782)
Data Link Connector Circuit
AK300113
CONNECTOR: C-29
ACCELERATOR
PEDAL
DATA LINK
CONNECTOR
AB
C-29 (B)
AK300070
CONNECTOR: C-77
AB
C-77
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-912
.
CIRCUIT OPERATION
• A diagnostic output is made from the ECM (termi-
nal No. 85) <M/T> or PCM (terminal No. 85)
<A/T> to the diagnostic output terminal (terminal
7) of the data link connector.
.
COMMENT
• No power supply to ECM <M/T> or PCM <A/T>.
• Defective ground circuit of ECM <M/T> or PCM
<A/T>.
• Defective ECM <M/T> or PCM <A/T>.
• Improper communication line between ECM
<M/T> or PCM <A/T> and scan tool.
.
TROUBLESHOOTING HINTS (The most likely
causes for this case: )
• Malfunction of ECM <M/T> or PCM <A/T> power
supply circuit.
• Malfunction of the ECM <M/T> or PCM <A/T>.
• Open circuit between ECM <M/T> or PCM <A/T>
and data link connector.
AK300094
CONNECTOR: C-62 <M/T>
ECM
AB
C-62 (GR)
AK300244
CONNECTOR: C-59 <A/T>
AE
PCM
C-59 (GR)
AK300119
CONNECTOR: C-28
AB
C-28
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-913
DIAGNOSIS
STEP 1. Check connector C-62 at ECM <M/T> or connector
C-59 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 2.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then confirm that the
malfunction symptom is eliminated.
AK300460
98
78
71
88
89
76
77
72
79
91
73
80
74
75
81
92
82
83
93
84
85
94
86
87
95
96
90
97
CONNECTOR: C-59 <A/T>
C-59 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300445
80
87
81
94
85
82
84
93
86
98
99
74
92
73
83
88
91
95
97 96
100
89
78
71
90
76
77
75
72
79
CONNECTOR: C-62 <M/T>
C-62 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-914
STEP 2. Check for open circuit, short circuit to ground and
harness damage between data link connector C-29
(terminal No. 7) and ECM connector C-62 (terminal No. 85)
<M/T> or PCM connector C-59 (terminal No. 85) <A/T>.
AK300450
1 2 3 4 5 6
12
11
10
1516
14
13
9
7 8
CONNECTOR: C-29
AB
C-29 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300460
98
78
71
88
89
76
77
72
79
91
73
80
74
75
81
92
82
83
93
84
85
94
86
87
95
96
90
97
CONNECTOR: C-59 <A/T>
C-59 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300445
80
87
81
94
85
82
84
93
86
98
99
74
92
73
83
88
91
95
97 96
100
89
78
71
90
76
77
75
72
79
CONNECTOR: C-62 <M/T>
C-62 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
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