Mitsubishi Outlander (2003+). Manual — part 90
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-223
STEP 16. Check ignition coil itself.
Check ignition coil itself (Refer to GROUP 16
-
Ignition System
-
On-vehicle Service
Q: Is the check result normal?
YES :
Go to Step 17 .
NO :
Replace ignition coil.
STEP 17. Check compression pressure.
Check compression pressure (Refer to GROUP
11A
-
On-vehicle Service
).
Q: Is the check result normal?
YES :
Go to Step 18 .
NO :
Repair.
STEP 18. Check injector for spraying condition.
Check each injector for spray condition (Refer to
Q: Does trouble symptom persist?
YES :
Go to Step 19 .
NO :
Replace injector.
STEP 19. Replace catalytic converter.
After replacing the catalytic converter, re-check
the trouble symptoms.
Q: Does trouble symptom persist?
YES :
Replace engine-ECU.
NO :
Check end
Inspection Procedure 19: Battery Rundown
COMMENT ON TROUBLE SYMPTOM
Failure is possibly caused by failed alternator,
failed generation control circuit or other faults.
PROBABLE CAUSE
Failed battery
Alternator G terminal short-circuited
Failed alternator
Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check battery voltage.
Measure battery voltage during cranking.
OK: 8 V or more
Q: Is the check result normal?
YES :
Go to Step 2 .
NO :
Check battery (Refer to GROUP 54
-
Battery
-
On-vehicle Service
-
Battery test
).
STEP 2. Connector check: B-19 intermediate
connector
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair.
AK300294
1
2
3
4
5
6
AB
CONNECTOR: B-19
B-19 (B)
Female side
connector
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-224
STEP 3. Measure voltage at B-19 intermediate
connector.
Disconnect connector, and measure at male con-
nector side.
Ignition switch: ON
Voltage between terminal No. 5 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Go to Step 4 .
STEP 4. Connector check: C-303 ignition switch
connector
Q: Is the check result normal?
YES :
Check intermediate connectors C-04, C-05,
C-105, C-203 and C-205, and repair if
necessary. If intermediate connectors are
normal, check and repair harness between
B-19 (terminal No. 5) intermediate
connector and C-303 (terminal No. 2)
ignition switch connector.
Check power supply line for
open/short circuit.
NO :
Repair.
AK300295
1 2 3
4 5 6
AB
CONNECTOR: B-19
B-19 (B)
Male side
connector
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
AK300295
1 2 3
4 5 6
AB
CONNECTOR: B-19
B-19 (B)
Male side
connector
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-225
STEP 5. Measure voltage at B-19 intermediate
connector.
Disconnect connector, and measure at female
connector side.
Ignition switch: ON
Voltage between terminal No. 4 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Go to Step 6 .
STEP 6. Connector check: B-30 alternator
connector
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair.
STEP 7. Check harness between B-19 (terminal
No. 4) intermediate connector and B-30 (terminal
No. 1) alternator connector.
Check output line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Repair.
AK300294
1
2
3
4
5
6
AB
CONNECTOR: B-19
B-19 (B)
Female side
connector
AK300296
2
1
3
4
AB
Harness side
connector
CONNECTOR: B-30
B-30 (GR)
AK300294
1
2
3
4
5
6
AB
CONNECTOR: B-19
B-19 (B)
Female side
connector
AK300296
2
1
3
4
AB
Harness side
connector
CONNECTOR: B-30
B-30 (GR)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MFI)
13A-226
STEP 8. Check harness between B-19 (terminal
No. 5) intermediate connector and B-30 (terminal
No. 3) alternator connector.
Check power supply line for open/short circuit.
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Repair.
STEP 9. Check harness between B-30 (terminal
No. 3) alternator connector and C-303 (terminal
No. 2) ignition switch connector.
NOTE: Before checking harness, check intermediate
connectors C-04, C-05, C-105, C-203 and C-205 and
repair if necessary.
Check power supply line for damage.
Q: Is the check result normal?
YES :
Replace alternator.
NO :
Repair.
STEP 10. Connector check: C-135 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 11 .
NO :
Repair.
AK300294
1
2
3
4
5
6
AB
CONNECTOR: B-19
B-19 (B)
Female side
connector
AK300296
2
1
3
4
AB
Harness side
connector
CONNECTOR: B-30
B-30 (GR)
AK300296
2
1
3
4
AB
Harness side
connector
CONNECTOR: B-30
B-30 (GR)
1
2
3
4
5
6
AK300304
CONNECTOR: C-303
C-303
Harness side
connector
AB
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
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