Mitsubishi Eclipse. Manual — part 389
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-99
STEP 9. Check for open circuit between manifold absolute
pressure sensor connector B-04 (terminal No. 2) and ECM
connector C-58 (terminal No. 49) <M/T> or PCM connector
C-55 (terminal No. 57) <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.
AK103763
2 1
3
CONNECTOR: B-04
AC
B-04(B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300462
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
CONNECTOR: C-55 <A/T>
C-55 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300748
65
43
50
42
49
41
48
60
61
64
46
47
58
59
67
68
45
56
66
52 51
44
53
62
54
63
57
55
CONNECTOR: C-58 <M/T>
AB
C-58 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-100
STEP 10. Check connector B-04 at manifold absolute
pressure sensor 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 12.
STEP 11. Check connector C-62 at ECM <M/T> or C-59 at
PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Replace the manifold absolute pressure sensor. Then
go to Step 12.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK103763
2 1
3
CONNECTOR: B-04
AC
B-04(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
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-101
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 P0108 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
DTC P0111: Intake Air Temperature Circuit Range/Performance Problem
AK300838
2 3
7
4 5 6
1
BR
O
W
N
RED-BLUE
34 <M/T>*1
16 <A/T>*3
62 <M/T>*2
64 <A/T>*4
B-14
INTAKE AIR TEMPERATURE SENSOR
(INCORPORATED IN VOLUME
AIRFLOW SENSOR)
ENGINE CONTROL MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL MODULE (PCM) <A/T>
5
6
5 V
65
43
50
42
49
41
48
60 61
64
46 47
58 59
67 68
45
56
66
52
51
44
53
62
54
63
57
55
C-58 <M/T>
(MU803782)
C-55 <A/T>
(MU803781)
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
Intake Air Temperature Sensor Circuit
C-51 <M/T>, C-52 <A/T>
(MU803784)
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
NOTE
*1: ECM connector C-51 <M/T>
*2: ECM connector C-58 <M/T>
*3: PCM connector C-52 <A/T>
*4: PCM connector C-55 <A/T>
AK300053
CONNECTOR: B-14
AD
B-14 (B)
INTAKE AIR
TEMPERATURE
SENSOR
AK300091
CONNECTORS: C-51, C-58 <M/T>
ECM
AB
C-51 (GR)
C-58 (GR)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-102
.
CIRCUIT OPERATION
• Approximately 5 volts are applied to the intake air
temperature sensor output terminal (terminal No.
6) from the ECM (terminal No. 62) <M/T> or PCM
(terminal No. 64) <A/T> via the resistor in the
ECM <M/T> or PCM <A/T>. The ground terminal
(terminal No. 5) is grounded with ECM (terminal
No. 34) <M/T> or PCM (terminal No. 16) <A/T>.
• The intake air temperature sensor is a negative
temperature coefficient type of resistor. When the
intake air temperature rises, the resistance
decreases.
• The intake air temperature sensor output voltage
increases when the resistance increases and
decreases when the resistance decreases.
.
TECHNICAL DESCRIPTION
• The intake air temperature sensor converts the
intake air temperature to a voltage.
• The ECM <M/T> or PCM <A/T> checks whether
this voltage is within a specified range.
.
DESCRIPTIONS OF MONITOR METHODS
Intake air temperature sensor output voltage does
not change when specified go/stop operations
are repeated.
.
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
.
AK300244
CONNECTORS: C-52, C-55 <A/T>
AB
PCM
C-52 (GR)
C-55 (GR)
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