Mitsubishi Lancer Evolution X. Manual — part 432
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-793
STEP 20. Check harness connector B-109 at starter
connector for damage.
Q: Is the connector in good condition?
YES : Go to Step 21.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then confirm that the
malfunction symptom is eliminated.
STEP 21. Measure the power supply voltage at starter
harness side connector B-109.
(1) Disconnect the connector B-109 and measure at the
harness side.
(2) Turn the ignition switch to the "START" position.
(3) Measure the voltage between terminal No. 1 and ground.
• Voltage should be battery positive voltage
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 26.
NO : Go to Step 22.
STEP 22. Measure the power supply voltage at starter relay
harness side connector A-28X.
(1) Disconnect the connector A-28X and measure at the
harness side.
(2) Measure the voltage between terminal No. 4 and ground.
• Voltage should be battery positive voltage
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 23.
NO : Repair harness wire between fusible link (24) and
starter relay connector A-28X (terminal No. 4)
because of open circuit or short circuit to ground.
Then confirm that the malfunction symptom is
eliminated.
AK704593
1
B-109 harness
connector:
component side
AB
2
1
3
4
AK700519AC
A-28X harness
connector:
component side
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-794
STEP 23. Check for open circuit and short circuit to
ground between starter relay connector A-28X (terminal
No. 3) and starter connector B-109 (terminal No. 1)
NOTE: Check harness after checking intermediate connectors
A-39 and B-17. If intermediate connectors are damaged, repair
or replace them. Refer to GROUP 00E, Harness Connector
Inspection
. Then check that the malfunction is elimi-
nated.
Q: Is the harness wire in good condition?
YES : Go to Step 24.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
STEP 24. Check harness connector B-10 at ECM connector
and harness connector C-51 at clutch interlock switch
connector for damage.
Q: Is the connector in good condition?
YES : Go to Step 25.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then confirm that the
malfunction symptom is eliminated.
STEP 25. Check for harness damage between ECM
connector B-10 (terminal No. 106) and clutch interlock
switch connector C-51 (terminal No. 2).
Q: Is the harness wire in good condition?
YES : Repair harness wire between clutch interlock switch
connector C-51 (terminal No. 2) and starter relay
connector A-28X (terminal No. 2) because of harness
damage. Then confirm that the malfunction symptom
is eliminated.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
STEP 26. Check for harness damage between starter relay
connector A-28X (terminal No. 3) and starter connector
B-109 (terminal No. 1)
NOTE: Check harness after checking intermediate connectors
A-39 and B-17. If intermediate connectors are damaged, repair
or replace them. Refer to GROUP 00E, Harness Connector
Inspection
. Then check that the malfunction is elimi-
nated.
Q: Is the harness wire in good condition?
YES : Go to Step 27.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-795
STEP 27. Check for harness damage between fusible link
(24) and starter relay connector A-28X (terminal No. 4)
Q: Is the harness wire in good condition?
YES : Go to Step 28.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
STEP 28. Check harness connector B-108 at starter
connector for damage.
Q: Is the connector in good condition?
YES : Go to Step 29.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then confirm that the
malfunction symptom is eliminated.
STEP 29. Check for open circuit and short circuit to
ground and harness damage between battery and starter
connector B-108 (terminal No. 1)
Q: Is the harness wire in good condition?
YES : Replace the starter.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI)
13A-796
Inspection procedure 25: Ignition switch-ST system and starter relay system <TC-SST>
M
1
2
3
4
7
3
8
1
4
9
13 14
16
15
10 11 12
17 18 19
2
5 6
1
6
4
5
9
8
10 11
13
15
14
12
16
7
2 3
1 2 3
4 5 6
AK900380
1
1 2 3 4
5 6 7
12
11
10
15 16
14
13
9
8
71 72 73 74 75 76 77 78 79 80 81 82
83 84 85 86 87 88 89 90 91 92 93 94
95 96 97 98 99
100 101 102 103 104
112 113 114
109
108
107
110 111
115 116
106
105
118
117
1
1
1 2 3
4 5 6
1
12 13 14 15 16 1718 19 20 2122 2324
2 3 4 5
6 7 8 9 10 11
1
2
3 4 5 6 7 8 9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
OFF
ON
OFF
ON
OFF
ON
1
OFF
ON
7
106
B-09
105
15
7
C-304
ENGINE
CONTROL
MODULE
B-10
ETACS-ECU
16
J/C (7)
5
17
18
15
IG2
ST
LOCK
ACC
IG1
5
B-109
(MU801211)
C-27
C-50
STARTER
STARTER
RELAY
B-108
A-28X
3
3
1
4
6
6
2
BLA
CK-RED
BLUE-RED
WHITE
GREEN
GREEN
ORANGE
LIGHT
GREEN
C-315
MU801890
C-210
IGNITION SWITCH
STARTING SYSTEM CIRCUIT <TC-SST>
AB
BATTERY
FUSIBLE LINK 24
1
GREEN
B-17
MU802655
A-39
MU802607
1
BLA
CK
BLA
CK
BLA
CK
BLA
CK
BLA
CK-RED
BLA
CK-
RED
BLA
CK-
RED
BLUE-
RED
BLACK-RED
LEVER
POSITION
SWITCH (N)
LEVER
POSITION
SWITCH (P)
SHIFT
LEVER
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