Mitsubishi Outlander (2003+). Manual — part 40
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-23
STEP 25. Check harness between B-08 (terminal
No. 3) air flow sensor connector and C-137
(terminal No. 90) engine-ECU connector.
Check output line for damage.
Q: Is the check result normal?
YES :
Go to Step 26 .
NO :
Repair.
STEP 26.Connector check: C-135 engine-ECU
connector
Q: Is the check result normal?
YES :
Check intermediate connector C-16, and
repair if necessary. If intermediate
connector is normal, check and repair
harness between B-08 (terminal No. 5) air
flow sensor connector and C-135 (terminal
No. 40) engine-ECU connector.
Check earthing line for damage.
No :
Repair.
AK300253
3
4
5
1
2
6
7
AB
Harness side connector
B-08 (B)
Connector: B-08
AK300254
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
AB
CONNECTOR: C-137
C-137
Harness side connector
AK300256
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
AB
CONNECTOR: C-135
C-135
Harness side connector
AK300253
3
4
5
1
2
6
7
AB
Harness side connector
B-08 (B)
Connector: B-08
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-24
Code No. P0105: Barometric Pressure Sensor System
OPERATION
A power voltage of 5 V is applied to the baromet-
ric pressure sensor power terminal (terminal No.
1) of the air flow sensor connector from the
engine-ECU (terminal No. 81) and earthed to the
engine-ECU (terminal No. 40) from the air flow
sensor (terminal No. 5).
The sensor signal is inputted to the engine-ECU
(terminal No. 85) from the barometric pressure
sensor output terminal (terminal No. 2) of the air
flow sensor connector.
FUNCTION
The barometric pressure sensor converts the bar-
ometric pressure into a voltage signal and inputs
the signal to the engine-ECU.
In response to the signal, the engine-ECU cor-
rects the fuel injection amount, etc.
TROUBLE JUDGMENT
Check Condition
2 seconds later after the ignition switch has been
in "ON" position or the engine has started up.
The battery voltage is 8 V or more.
Judgment Criterion
The sensor output voltage is 4.5 V or more (Baro-
metric pressure of above 114 kPa or equivalent)
for 2 seconds.
Or
The sensor output voltage is 0.2 V or less (Baro-
metric pressure of below 53kpa or equivalent) for
2 seconds.
AK300258
7
4 5 6
1 2 3
34
33
32
36
35
37
42
45
31
39
38
46
40 41
43 44
82
78
81
80
89 90 9192
79
87
71
74
73
72
76
75
77
85
88
83 84
86
5 V
Engine-ECU
81
Y-B
G-W
B-W
B-W
85
40
B-08
Barometric pressure sensor
(Incorporated in air flow sensor)
1
2
5
Barometric pressure sensor circuit
20
17
J/C (1)
C-16
AB
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Gray
R: Red P: Pink V:Violet
C-137
C-135
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-25
PROBABLE CAUSE
Failed barometric pressure sensor
Open/short circuit in barometric pressure sensor
circuit or loose connector contact
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. MUT-II data list
Refer to Data list reference table
a. Item 25: Barometric pressure sensor
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
-
How to Use
Troubleshooting/Inspection Service Points
).
NO :
Go to Step 2 .
STEP 2. Connector check: B-08 air flow sensor
connector
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair.
STEP 3. Measure voltage at B-08 air flow sensor
connector.
Disconnect connector, and measure at harness
side.
Ignition switch: ON
Voltage between terminal No. 1 and earth.
OK: 4.9
-
5.1 V
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Go to Step 4 .
STEP 4. Measure voltage at C-137 engine-ECU
connector.
Measure engine-ECU terminal voltage.
Ignition switch: ON
Voltage between terminal No. 81 and earth.
OK: 4.9
-
5.1 V
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Go to Step 6 .
AK300253
3
4
5
1
2
6
7
AB
Harness side connector
B-08 (B)
Connector: B-08
AK300253
3
4
5
1
2
6
7
AB
Harness side connector
B-08 (B)
Connector: B-08
AK300254
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
AB
CONNECTOR: C-137
C-137
Harness side connector
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-26
STEP 5. Connector check: C-137 engine-ECU
connector
Q: Is the check result normal?
YES :
Check and repair harness between B-08
(terminal No. 1) air flow sensor connector
and C-137 (terminal No. 81) engine-ECU
connector.
Check power supply line for open
circuit.
NO :
Repair.
STEP 6. Connector check: C-137 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair.
AK300254
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
AB
CONNECTOR: C-137
C-137
Harness side connector
AK300253
3
4
5
1
2
6
7
AB
Harness side connector
B-08 (B)
Connector: B-08
AK300254
82
78
8180
89
90
91
92
79
87
71
74 73 72
76 75
77
85
88
83
84
86
AB
CONNECTOR: C-137
C-137
Harness side connector
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст