Mitsubishi Outlander GS45X. Manual — part 853
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-345
DTC P0201: Injector Circuit - Cylinder 1
AK700143
1
3
2
4
1
2
3
4
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 2 3 4
5 6 7
15
14
13
12
11
9
8
1
6
4
5
9
8
10
10
11
13
15
14
12
16
7
2 3
1
2 3
6
7 8
4 5
9 10
2
1
1
10 111213 14 1516 17 1819 20
2 3 4
5 6 7 8 9
B-101
(MU802062)
B-21
MU802645
1
6
2
ETACS-
ECU
2
7
INJECTOR CIRCUIT-CYLINDER 1
BLUE
BLUE
GREEN-
WHITE
GREEN-
WHITE
B-10
AB
20A
WHITE
WHITE
A-33X
4
3
1
2
22
36
FUSIBLE LINK
OFF
ON
WHITE
WHITE
RED-WHITE
4
1
10
6
7
C-304
C-317
A-13
A-24X
3
BLUE
BLA
CK
BLA
CK
BLA
CK
2
IGNITION
SWITCH (IG1)
OFF
ON
INJECTOR
RELAY
RELAY BOX
(ENGINE COMPARTMENT)
TO ECM
ENGINE CONTROL MODULE
MFI
RELAY
INJECTOR
NO. 1
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-346
.
CIRCUIT OPERATION
• The injector power is supplied from the injector
relay (terminal No. 3).
• The ECM controls the injector by turning the
power transistor in the ECM "ON" and "OFF".
.
TECHNICAL DESCRIPTION
• The amount of fuel injected by the injector is con-
trolled by the amount of continuity time the coil is
grounded by the ECM.
.
DESCRIPTIONS OF MONITOR METHODS
The ECM detects open circuit and short malfunction.
.
MONITOR EXECUTION
Continuous
.
AK900137 AD
B-101 (GR)
Connector: B-101
AK700399AB
MFI relay
A-33X
Connector: A-33X
AK900134
AD
B-21 (B)
Connector: B-21
Intermediate
connector
AK700413AB
A-24X
Connector: A-24X
Injector relay
AK700401AB
ECM
B-10 (GR)
Connector: B-10
AK700414 AB
ETACS-ECU
C-317
Connectors: C-304, C-317
C-304
AK900602
Connector: A-13
A-13
AB
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-347
MONITOR EXECUTION CONDITIONS
(Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored
in memory for the item monitored below)
• Not applicable
Sensor (The sensor below is determined to be
normal)
• Not applicable
.
DTC SET CONDITIONS <Circuit continuity
− open circuit and shorted low>
Logic Flow Chart
.
Check Condition
• Engine is running.
Judgement Criterion
• The supply voltage is 3 volts or less without the
injector driving for 2 seconds.
.
Good
Malfunction
Injector voltage < = 3V
Start
Continuous
failure for 2secs
End
No
No
Yes
Yes
Yes
No
AK700479
Monitoring
condition
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-348
DTC SET CONDITIONS <Circuit continuity
− shorted high>
Logic Flow Chart
.
Check Condition
• Engine is running.
Judgement Criterion
• The coil current is 4.5 ampere or more with the
injector driving for 2 seconds.
.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function
− OBD-II Drive Cycle −
Pattern 22
.
TROUBLESHOOTING HINTS (The most
likely causes for this code to be set are:)
• No. 1 cylinder injector failed.
• Connector damage.
• Harness damage.
• ECM failed.
DIAGNOSIS
Required Special Tools:
• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
• MB991824: V.C.I.
• MB991827: USB Cable
• MB991910: Main Harness A
• MB991658: Test Harness
• MB992110: Power Plant ECU Check Harness
Good
Malfunction
Current >= 4.5A
End
Yes
No
No
No
AK604332
Start
Yes
Yes
Continuous
failure for 2secs
Monitoring
condition
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