Mitsubishi Outlander XL. Manual - part 223

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.

｠

Connector damage.

｠

Harness damage

｠

ECM failed.

 

DIAGNOSIS

Required Special Tools:

｠

MD998464: Test Harness

STEP 1. Check harness connector B-14 at the left bank
heated oxygen sensor (front) and harness connector B-10
at the ECM for damage.

Q:Is the harness connector in good condition?

YES:

 Go to Step 2.

NO:

 Repair or replace it. Refer to GROUP 00E, Harness

Connector Inspection P.00E-2. Then go to Step 6.

STEP 2. 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 3.

NO:

 Replace the left bank heated oxygen sensor (front).

Then go to Step 6.

STEP 3. Measure the power supply voltage at left bank
heated oxygen sensor (front) harness side connector B-14.

(1)

Disconnect the connector B-14 and measure at the harness
side.

(2)

Turn the ignition switch to the "ON" position.

B-14 harness
connector:
component side 

1

2

3

4

ZK603162AA00

(3)

Measure the voltage between terminal No. 1 and ground.

｠

Voltage should be battery positive voltage.

(4)

Turn the ignition switch to the "LOCK" (OFF) position.

Q:Is  battery  positive  voltage  (approximately  12  volts)

present?

YES:

 Go to Step 4.

NO:

 Repair harness wire between the MFI relay connector

A-33X (terminal No. 2) and the left bank heated oxygen

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-87

DIAGNOSTIC TROUBLE CODE PROCEDURES

sensor (front) connector B-14 (terminal No. 1) because of
open circuit or harness damage. Then go to step 6.

STEP 4.Check for open circuit to ground or harness damage
between left bank heated oxygen sensor (front) connector
B-14 and ECM connector B-10 (terminal No. 125).

(1)

Disconnect  the  left  bank  heated  oxygen  sensor  (front)
connector B-14 and ECM connector B-10.

ZK603163

1

2

3

4

16 15 14 13 12 11 10 9 8 7 6 5 4 3

2

1

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

B-14 harness connector:
component side 

B-10 harness connector:
component side 

AA00

(2)

Measure  the  resistance  between  heated  oxygen  sensor
connector B-14 (terminal No. 3) and the ECM connector B-10
(terminal No. 34).

｠

Should be less than 2 ohms.

ZK603164AA00

B-14 harness
connector:
component side 

1

2

3

4

(3)

Check  for  the  continuity  between  the  oxygen  sensor
connector B-14 (terminal No. 3) and ground.

｠

Not continuity.

Q:Is the harness wire in good condition?

YES:

 Go to Step 5.

NO:

 Repair it. Then go to Step 6.

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 P0051 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.

13Ab-88

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

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 P0051 set?

YES:

 Retry the troubleshooting.

NO:

 The inspection is complete.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-89

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC P0052: Heated Oxygen Sensor Heater Control Circuit High (bank 2, sensor 1)

M11310100166USA0000010000

ZK602831

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

BLUE

WHITE

WHITE

WHITE

A-33X

MFI
RELAY

RELAY BOX
(ENGINE COMPARTMENT)

4

3

1

2

22

TO ECM

LEFT BANK HEATED
OXYGEN SENSOR (FRONT)

1

2

3

4

TO ECM TO ECM

ENGINE
CONTROL
MODULE

34

4

LEFT BANK HEATED OXYGEN SENSOR (FRONT) HEATER CIRCUIT

B-14

MU802605

B-10

A-13

OFF

ON

36

FUSIBLE LINK

13Ab-90

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES