Mitsubishi Outlander XL. Manual — part 221
STEP 5. Check the trouble symptoms.
(1)
Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle - Pattern 2 P.
13Ab-8.
(2)
Check the diagnostic trouble code (DTC).
Q:Is DTC P0031 set?
YES:
Replace the ECM. When the ECM is replaced, register
the ID code. Refer to GROUP 42B, ID Code Registration
Judgment Table <Vehicles with KOS> P.42B-12or GROUP
42C, ID Code Registration Judgment Table <Vehicles with
WCM> P.42C-8. Then go to Step 6.
NO:
It can be assumed that this malfunction is
intermittent. Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service Points - How to Cope
with Intermittent Malfunctions P.00-15.
STEP 6. Test the OBD-II drive cycle.
(1)
Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle - Pattern 2 P.
13Ab-8.
(2)
Check the diagnostic trouble code (DTC).
Q:Is DTC P0043 set?
YES:
Retry the troubleshooting.
NO:
The inspection is complete.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-79
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P0044: Heated Oxygen Sensor Heater Control Circuit High (bank 1, sensor 3)
<California>
M11310100362USA0000010000
ZK602830
1
3
2
4
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
2
8
7
6
5
4
3
11
21
20
19
18
17
16
15
14
13
12
9
22
1
10
1 2
3 4
WHITE
WHITE
RELAY BOX
(ENGINE COMPARTMENT)
HC TRAP CATALYST HEATED OXYGEN SENSOR HEATER CIRCUIT
36
FUSIBLE LINK
AA00
WHITE
BR
O
WN
BR
O
WN
HC TRAP CATALYST HEATED
OXYGEN SENSOR
ENGINE
CONTROL
MODULE
118
D-30
16
1
TO ECM TO ECM
20A
WHITE
A-33X
MFI
RELAY
4
3
1
2
20
TO ECM
B-11
OFF
ON
C-129
1
4
2
3
13Ab-80
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK603589
MFI relay
A-33X
Connector: A-33X
AA00
ZK603592
ECM
B-11 (GR)
Connector: B-11
AA00
ZK600417 AA00
Center exhaust pipe
heated oxygen sensor
Connector: D-30
D-30 (B)
Rear heater duct
ZK603651AA00
C-129
Connector: C-129
CIRCUIT OPERATION
⦆
Power is supplied from the MFI relay (terminal No.
4) to the heated oxygen sensor heater.
⦆
The ECM (terminal No. 118) controls continuity to
the center exhaust pipe heated oxygen sensor
heater by turning the power transistor in the ECM
"ON" and "OFF".
TECHNICAL DESCRIPTION
⦆
The ECM checks whether the heater current is
within a specified range when the heater is
energized.
DESCRIPTIONS OF MONITOR METHODS
Center exhaust pipe heated oxygen sensor heater
current or voltage is out of specified range.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-81
DIAGNOSTIC TROUBLE CODE PROCEDURES
MONITOR EXECUTION
Continuous
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 CONDITION
Logic Flow Chart
Start
End
Yes
Yes
Yes
No
No
No
Malfunction
Good
Continuous
failure for 2secs
Monitoring
conditions
Current < 0.17A
or
Current > 10.5A
Voltage < 2.0V
ZK603657 AA00
Heater ON
Yes
Yes
No
Check Conditions
⦆
More than 2 seconds have passed since the engine
starting sequence was completed.
⦆
While the center exhaust pipe heated oxygen
sensor (front) heater is on.
⦆
Battery positive voltage is between 11 and 16.5
volts.
13Ab-82
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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