Mitsubishi Eclipse. Manual — part 300
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-693
STEP 5. Check connector C-60 at ECM <M/T> or connector
C-54 at PCM <A/T> for damage.
Q: Is the harness connector in good condition?
YES : Replace the ECM or PCM. Then go to Step 6.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 6.
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-694
STEP 6. Using scan tool MB991958, read the diagnostic
trouble code (DTC).
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P1603 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
AK300810
AB
MB991911
16-PIN
MB991827
MB991824
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-695
DTC P2227: Barometric Pressure Circuit Range/Performance Problem
AK300332
7
4 5 6
1 2 3
GREEN-
YELL
OW
GREEN-
WHITE
BROWN
C-54 <A/T>
(MU803781)
C-60 <M/T>
(MU803772)
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
81 <M/T>*1
46 <A/T>*3
5 V
85 <M/T>*1
55 <A/T>*3
40 <M/T>*2
16 <A/T>*4
B-14
BAROMETRIC PRESSURE SENSOR
(INCORPORATED IN VOLUME
AIRFLOW SENSOR)
1
2
5
82
78
81
80
89 90 91 92
79
87
71
74
73
72
76
75
77
85
88
83 84
86
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
Barometric Pressure Sensor Circuit
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
C-50 <A/T>
(MU803784)
NOTE
*1: ECM connector C-60 <M/T>
*2: ECM connector C-53 <M/T>
*3: PCM connector C-54 <A/T>
*4: PCM connector C-50 <A/T>
C-53 <M/T>
(MU803771)
34
33
32
36
35
37
42
45
31
39
38
46
40 41
43 44
AK300053
CONNECTOR: B-14
AC
BAROMETRIC
PRESSURE
SENSOR
B-14 (B)
AK300060
ECM
CONNECTORS: C-53, C-60 <M/T>
AN
C-53 (G)
C-60 (G)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-696
.
CIRCUIT OPERATION
• A 5-volt voltage is supplied to the barometric
pressure sensor power terminal (terminal No. 1)
from the ECM (terminal No. 81) <M/T> or PCM
(terminal No. 46) <A/T>. The ground terminal
(terminal No. 5) is grounded with ECM (terminal
No. 40) <M/T> or PCM (terminal No. 16) <A/T>.
• A voltage that is proportional to the atmospheric
pressure is sent to the ECM (terminal No. 85)
<M/T> or PCM (terminal No. 55) <A/T> from the
barometric pressure sensor output terminal (ter-
minal No. 2).
.
TECHNICAL DESCRIPTION
• The barometric pressure sensor outputs a volt-
age which corresponds to the barometric pres-
sure.
• The ECM <M/T> or PCM <A/T> checks whether
this voltage is within a specified range.
.
DESCRIPTIONS OF MONITOR METHODS
Barometric pressure sensor output voltage does not
change for specified period. (approximately 1
week)
.
MONITOR EXECUTION
Continuous
.
MONITOR EXECUTION CONDITIONS (Other
monitor and Sensor)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
AK300060
PCM
CONNECTORS: C-50, C-54 <A/T>
AO
C-54 (GR)
C-50 (GR)
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