Mitsubishi Outlander XL. Manual — part 224
ZK603589
MFI relay
A-33X
Connector: A-33X
AA00
ZK603594
Left bank heated oxygen
sensor (front)
AA00
B-14 (B)
Connector: B-14
ZK603591
ECM
B-10 (GR)
Connector: B-10
AA00
ZK603650AA00
A-13
Connector: A-13
CIRCUIT OPERATION
⦆
Power is supplied from the MFI relay (terminal No.
4) to the left bank heated oxygen sensor (front)
heater.
⦆
The ECM (terminal No. 34) controls continuity to the
left bank heated oxygen sensor (front) 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
Left bank heated oxygen sensor heater (front)
current is out of specified range.
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
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-91
DIAGNOSTIC TROUBLE CODE PROCEDURES
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 left bank heated oxygen sensor (front)
heater is on.
⦆
Battery positive voltage is at between 11 and 16.5
volts.
Judgement Criterion
⦆
The left bank heated oxygen sensor (front) heater
current has continued to be higher than 10.5
ampere for 2 seconds.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 2 P.13Ab-8.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )
⦆
Left bank heated oxygen sensor (front) heater
failed.
⦆
ECM failed.
13Ab-92
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
DIAGNOSIS
Required Special Tool:
⦆
MD998464: Test Harness
STEP 1. Check the left bank heated oxygen sensor (front).
ZK603154
Heated
oxygen
sensor
component
side
connector
MD998464
Red
Blue
AA00
(1)
Disconnect left bank heated oxygen sensor (front) connector
B-14 and connect test harness special tool, MD998464, to
the connector on the left bank heated oxygen (front) sensor
side.
(2)
Measure the resistance between heated oxygen sensor
connector terminal No. 1 (red clip) and terminal No. 3 (blue
clip).
Standard value: 4.5 - 8.0 Ω [at 20°C (68°F)]
Q:Is the measured resistance between 4.5 and 8.0 ohms [at
20°C (68°F)]?
YES:
Go to Step 2.
NO:
Replace the left bank heated oxygen sensor (front).
Then go to Step 3.
STEP 2. 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 P0052 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 3.
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 3. 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 P0052 set?
YES:
Retry the troubleshooting.
NO:
The inspection is complete.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-93
DIAGNOSTIC TROUBLE CODE PROCEDURES
DTC P0057: Heated Oxygen Sensor Heater Control Circuit Low (bank 2, sensor 2)
M11310100167USA0000010000
ZK602832
1
3
2
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
10 111213 14 1516 17 1819 20
2 3 4
5 6 7 8 9
2
1
4
3
AA00
20A
WHITE
BR
O
WN
WHITE
WHITE
WHITE
A-33X
MFI
RELAY
RELAY BOX
(ENGINE COMPARTMENT)
4
3
1
2
22
TO ECM
LEFT BANK HEATED
OXYGEN SENSOR (REAR)
1
2
3
4
TO ECM TO ECM
ENGINE
CONTROL
MODULE
35
4
LEFT BANK HEATED OXYGEN SENSOR (REAR) HEATER CIRCUIT
B-13
MU802665
B-10
A-13
OFF
ON
36
FUSIBLE LINK
13Ab-94
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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