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