Mitsubishi Outlander (2003+). Manual — part 82
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-191
COMMENT ON TROUBLE SYMPTOM
Engine-ECU has detected failed sensor or failed
actuator. Or failure is possibly caused by short
circuit or other faults.
PROBABLE CAUSE
Short circuit in between engine warning lamp and
engine-ECU circuit.
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1: MUT-II self-diag code
Q: Diagnosis code set?
YES :
Inspection chart for diagnosis code (Refer
to
NO :
Go to Step 2 .
STEP 2: Connector check: C-135 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair
STEP 3: Measure voltage at C-135 engine-ECU
connector.
Disconnect connector, and measure at the har-
ness side.
Ignition switch: ON
Voltage between terminal No. 36 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Check intermediate connector C-105, and
repair if necessary. If intermediate
connector is normal, check and repair
harness between C-05 (terminal No. 14)
combination meter connector and C-135
(terminal No. 22) engine-ECU connector.
Check output line for short circuit.
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
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
AK300305
G
G
22
4
1
2
15 14 1312
3
17
11
8
9
10
6
7
5
19
16
2120
18
AB
Harness side connector
CONNECTOR: C-05
C-05 (L)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-192
STEP 4: Check the trouble symptoms.
Q: Does trouble symptom persist?
YES :
Replace engine-ECU.
NO :
Intermittent malfunction (Refer to GROUP
00
-
How to Use
Troubleshooting/Inspection Service Points
Inspection Procedure 5: Starting impossible (No Initial Combustion)
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by failed starter itself
or failed related circuit.
PROBABLE CAUSE
Failed battery
Failed starter motor
Open/short circuit in starter associated circuit or
loose connector contact
DIAGNOSIS PROCEDURE
STEP 1: Check battery voltage.
Measure battery voltage at cranking.
OK: 8 V or higher
Q: Is the check result normal?
YES :
Go to Step 2 .
NO :
Check battery (Refer to GROUP 54A
-
Battery
-
On-vehicle Service
-
Battery Test
STEP 2: MUT-II data list
Item 18: Cranking signal
OK:
ON (Ignition switch: ST)
OFF (Ignition switch: ON)
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Go to Step 3 .
STEP 3: Connector check: C-137 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 4 .
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
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-193
STEP 4: Measure voltage at C-137 engine-ECU
connector.
Disconnect connector, and measure at the har-
ness side.
Ignition switch: ST
Voltage between terminal No. 71 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Go to Step 5 .
STEP 5: Connector check: C-303 ignition switch
connector
Q: Is the check result normal?
YES :
Go to Step 6 .
NO :
Repair.
STEP 6: Check ignition switch.
Check ignition switch (Refer to GROUP 54A
-
Ignition Switch
-
Ignition Switch
Q: Is the check result normal?
YES :
Check intermediate connectors C-106 and
B-19, and repair if necessary. If intermediate
connector are normal, check and repair
harness between C-137 (terminal No. 71)
inhibitor switch connector and C-303
(terminal No. 5) ignition switch connector.
Check power supply line for
open/short circuit.
NO :
Replace ignition switch.
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
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
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
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-194
STEP 7: Connector check: C-303 ignition switch
connector and B-26 starter connector
Q: Is the check result normal?
YES :
Check intermediate connectors C-106 and
B-19, and repair if necessary. If intermediate
connectors are normal, check and repair
harness between C-303 (terminal No. 5)
ignition switch connector and B-26 (terminal
No. 1) starter connector.
Check output line for short circuit.
NO :
Repair.
STEP 8: Check connector: B-26 starter connector
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Repair.
STEP 9: Measure voltage at B-26 starter
connector.
Disconnect connector, and measure at the har-
ness side.
Ignition switch: ST
Voltage between terminal No. 1 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Go to Step 10 .
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
AK300306
1
AB
Harness side
connector
CONNECTOR: B-26
B-26 (B)
AK300306
1
AB
Harness side
connector
CONNECTOR: B-26
B-26 (B)
AK300306
1
AB
Harness side
connector
CONNECTOR: B-26
B-26 (B)
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