Mitsubishi Outlander GS45X. Manual — part 743
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-795
Inspection procedure 24: Ignition switch-ST system and starter relay system
M
1
1
2
3
4
5 6
1 2 3 4
7
8
9 10
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
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
AK900381
1
10 111213 14 1516 17 1819 20
2 3 4
5 6 7 8 9
1
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
1
D
Ds
N
R
P
OFF
ON
1
OFF
ON
10
106
6
B-11
105
15
7
C-304
ENGINE
CONTROL
MODULE
A-13
B-10
ETACS-ECU
7
IG2
ST
LOCK
ACC
IG1
5
B-114
(MU801211)
B-110
MU802355
STARTER
STARTER
RELAY
TRANSMISSION
RANGE
SWITCH
B-113
A-27X
6
3
1
4
2
BLA
CK-RED
RED-WHITE
RED-WHITE
WHITE
GREEN
GREEN
ORANGE
LIGHT
GREEN
12
11
C-315
MU801890
C-210
IGNITION SWITCH
STARTING SYSTEM CIRCUIT
AB
BATTERY
FUSIBLE LINK 24
1
GREEN
B-23
MU802653
1
BLA
CK
BLA
CK
BLA
CK
BLA
CK-RED
BLA
CK-RED
BLA
CK-RED
BLA
CK-RED
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-796
.
CIRCUIT OPERATION
• If the selector lever is moved to "P" or "N" range
and the ignition switch is turned to "START" posi-
tion, battery positive voltage is supplied to starter
relay coil. With this, the starter relay turns "ON"
the battery positive voltage is supplied to the
starter motor (terminal No. 1) from the battery.
.
COMMENT
• Faulty starting system and the related circuit are
suspected to be the causes.
.
AK704087AB
Connector: A-13
A-13
AK704315
AB
Connector: A-27X
A-27X
Starter relay
AK704151AB
Connector: B-10, B-11
B-10 (GR)
B-11 (GR)
AK704316
AB
Connectors: B-23, B-113 and B-114
B-114 (B)
B-113
B-23 (B)
AK704317
AB
Connector: B-110
B-110 (B)
AK900601
Connector: C-210
C-210
AB
AK700445AB
ETACS-ECU
C-315
Connectors: C-304, C-315
C-304
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-797
TROUBLESHOOTING HINTS (The most
likely causes for this case:)
• Battery failed
• Malfunction of the starter motor relay.
• Malfunction of the starter motor.
• Open or shorted starting system circuit, harness
damage, or connector damage.
• Malfunction of the transmission range switch.
• Malfunction of the ECM
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: USB Cable
• MB991910: Main Harness A
STEP 1. Using scan tool MB991958, check data list item 79:
Cranking signal.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991958 to the data reading mode for item
79, Cranking Signal.
• When the engine is stopped, "OFF" will be displayed.
• When the engine is cranked, "ON" will be displayed.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the operating properly?
YES : Go to Step 9.
NO : Go to Step 2.
STEP 2. Check harness connector C-304, C-315 at
ETACS-ECU connector for damage.
Q: Is the connector in good condition?
YES : Go to Step 3.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
P.00E-2
. Then confirm that the
malfunction symptom is eliminated.
AK700568AB
MB991824
MB991827
MB991910
Data link
connector
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE>
13A-798
STEP 3. Measure the ignition switch-ST signal voltage at
ETACS-ECU harness side connector C-315.
(1) Disconnect the connector C-315 and measure at the
harness side.
(2) Turn the ignition switch to the "START" position.
(3) Measure the voltage between terminal No. 7 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 6.
NO : Go to Step 4.
STEP 4. Check harness connector C-210 ignition switch
connector for damage.
Q: Is the connector in good condition?
YES : Go to Step 5.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
P.00E-2
. Then confirm that the
malfunction symptom is eliminated.
STEP 5. Check the ignition switch
Refer to GROUP 54A, Ignition Switch
− Inspection − Ignition
Switch Continuity Check
.
Q: Are there any abnormalities?
YES : Replace the Ignition Switch. Then confirm that the
malfunction symptom is eliminated.
NO : Repair harness wire between Ignition Switch
connector C-210 (terminal No. 5) and ETACS-ECU
connector C-315 (terminal No. 7) because of open
circuit or short circuit to ground. Then confirm that the
malfunction symptom is eliminated
STEP 6. Check for harness damage between ignition
switch connector C-210 (terminal No. 5) and ETACS-ECU
connector C-315 (terminal No. 7).
Q: Is the harness wire in good condition?
YES : Go to Step 7.
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
12
6
11
2
5
10
19 18
16
17
9 8 7
15 14 13
1
4 3
AK704318
C-315 harness
connector:
component side
AB
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