Mitsubishi Outlander XL. Manual — part 216
DTC P0032: Heated Oxygen Sensor Heater Control Circuit High (bank 1, sensor 1)
M11310100162USA0000010000
ZK602828
1
3
2
4
2
1
4
3
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
20A
WHITE
GRA
Y
WHITE
WHITE
WHITE
A-33X
MFI
RELAY
RELAY BOX
(ENGINE COMPARTMENT)
4
3
1
2
22
TO ECM
36
FUSIBLE LINK
AA00
RIGHT BANK HEATED
OXYGENSENSOR (FRONT)
1
2
3
4
TO ECM TO ECM
ENGINE
CONTROL
MODULE
33
4
B-03
MU802665
B-10
A-13
OFF
ON
RIGHT BANK HEATED OXYGEN SENSOR (FRONT) HEATER CIRCUIT
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-59
DIAGNOSTIC TROUBLE CODE PROCEDURES
ZK603589
MFI relay
A-33X
Connector: A-33X
AA00
ZK603591
ECM
B-10 (GR)
Connector: B-10
AA00
ZK603590AA00
Right bank heated
oxygen sensor (front)
Front exhaust
pipe RH
B-03 (GR)
Connector: B-03
ZK603650AA00
A-13
Connector: A-13
CIRCUIT OPERATION
⦆
Power is supplied from the MFI relay (terminal No.
4) to the right bank heated oxygen sensor (front)
heater.
⦆
The ECM (terminal No. 33) controls continuity to the
right 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
Right bank heated oxygen sensor heater (front)
current or voltage is out of specified range.
13Ab-60
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
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 right bank heated oxygen sensor (front)
heater is on.
⦆
Battery positive voltage is between 11 and 16.5
volts.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-61
DIAGNOSTIC TROUBLE CODE PROCEDURES
Judgement Criterion
⦆
The right 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: )
⦆
Right bank heated oxygen sensor (front) heater.
⦆
ECM failed.
DIAGNOSIS
Required Special Tool:
⦆
MB991316: Test Harness
STEP 1. Check the right bank heated oxygen sensor (front).
Heated
oxygen
sensor
component
side
connector
MB991316
Red
Blue
ZK603150AA00
(1)
Disconnect right bank heated oxygen sensor (front)
connector B-03 and connect test harness special tool,
MB991316, to the connector on the right 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 right 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 P0032 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).
13Ab-62
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
DIAGNOSTIC TROUBLE CODE PROCEDURES
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