MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-518
DTC P1400: Manifold Defferential Pressure Sensor
.
CIRCUIT OPERATION
•
A 5-volt voltage is applied on the manifold differ-
ential pressure sensor power terminal (terminal
3) from the ECM (terminal 42) <M/T> or PCM
(terminal 46) <A/T>. The ground terminal (termi-
nal 2) is grounded with the ECM (terminal 49)
<M/T> or PCM (terminal 57) <A/T>.
•
A voltage proportional to the pressure in the
intake manifold plenum is sent from the manifold
differential pressure sensor output terminal (ter-
minal 1) to the ECM (terminal 92) <M/T> or PCM
(terminal 91) <A/T>.
.
AK000709
1 2 3
BL
UE-RED
GREEN-
YELL
OW
BL
ACK
MANIFOLD DIFFERENTIAL
PRESSURE (MDP) SENSOR
B-04
(MU802723)
92 <M/T>*2
91 <A/T>*4
42 <M/T>*1
46 <A/T>*3
49 <M/T>*1
57 <A/T>*3
1
2
3
5V
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
NOTE
*1:ECM connector C-58 <M/T>
*2:ECM connector C-62 <M/T>
*3:PCM connector C-55 <A/T>
*4:PCM connector C-59 <A/T>
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
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)
Manifold Differential Pressure Sensor Circuit
ACX02483
CONNECTOR : B-04
MANIFOLD
DIFFRENTIAL
PRESSURE
SENSOR
AC
AK000225
CONNECTORS : C-58, C-62<M/T>,
C-55, C-59<A/T>
C-55
C-58
PCM<A/T>
ECM<M/T>
AK
C-59
C-62
