Mitsubishi Outlander XL. Manual — part 273

Judgement Criterion

｠

Left bank heated oxygen sensor (rear) output
voltage does not reach 0.2 volt for 6 seconds from
fuel cut start.

OBD-II DRIVE CYCLE PATTERN

Refer to Diagnostic Function - OBD-II Drive Cycle -
Pattern 11 P.13Ab-8.

TROUBLESHOOTING HINTS (The most likely
causes for this code to be set are: )

｠

Left bank heated oxygen sensor (rear) deteriorated.

DIAGNOSIS

STEP 1. Using scan tool MB991958, check data list item AF:
Heated Oxygen Sensor Bank 2, Sensor 2 (left rear).

ZC501967

AC404789

ZC5019680000

MB991824

MB991827

MB991910

Data link

connector

To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before
connecting or disconnecting scan tool MB991958.

(1)

Connect scan tool MB991958 to the data link connector.

(2)

Start the engine and run at idle.

(3)

Set scan tool MB991958 to the data reading mode for item
AF, Heated Oxygen Sensor Bank 2, Sensor 2 (left rear).

(4)

Warm up the engine.

｠

After increasing the output voltage 0.5 volt or more by the
engine revving, finish it. Then confirm that the output
voltage reduces to 0.2 volt or less within 6 seconds.

(5)

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

Q:Is the sensor operating properly?

YES:

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.

NO:

Replace the left bank heated oxygen sensor (rear).

Then go to Step 2.

STEP 2. 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 11 P.
13Ab-8.

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P0159 set?

YES:

Refer to DTC P0157 - Heated Oxygen Sensor Circuit

Low Voltage (bank 2, sensor 2) P.13Ab-275, DTC P0158 -
Heated Oxygen Sensor Circuit High Voltage (bank 2, sensor
2) P.13Ab-280.

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.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-287

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC P0160: Heated Oxygen Sensor Circuit No Activity Detected (bank 2, sensor 2)

M11310100201USA0000010000

ZK602841

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

2

1

4

3

0.5 V

AA00

ENGINE
CONTROL
MODULE

LEFT BANK HEATED
OXYGEN SENSOR (REAR)

FROM MFI RELAY

TO ECM

1

2

3

4

41

YELLO

W

ORANGE

40

LEFT BANK HEATED OXYGEN SENSOR (REAR) CIRCUIT

B-10

B-13

MU802665

13Ab-288

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

ZK603595AA00

Left bank heated
oxygen sensor (rear)

Front
exhaust pipe

B-13 (GR)

Connector: B-13

ZK603591

ECM

B-10 (GR)

Connector: B-10

AA00

CIRCUIT OPERATION

｠

A voltage corresponding to the oxygen
concentration in the exhaust gas is sent to the ECM
(terminal No. 40) from the output terminal (terminal
No. 4) of the left bank heated oxygen sensor (rear).

｠

Terminal No. 2 of the left bank heated oxygen
sensor (rear) is grounded with ECM (terminal No.
41).

｠

The ECM applies an offset voltage of 0.5 volt to
terminal No. 2 of the left bank heated oxygen sensor
(rear).

TECHNICAL DESCRIPTION

｠

The output signal of the heated left bank oxygen
sensor (front) is compensated by the output signal
of the left bank heated oxygen sensor (rear).

｠

The ECM checks for the left bank heated oxygen
sensor (rear) output voltage.

DESCRIPTIONS OF MONITOR METHODS

Left bank heated oxygen sensor (rear) output
voltage does not change during specified.

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)

｠

Heated oxygen sensor heater (front) monitor

｠

Heated oxygen sensor heater (rear) monitor

｠

Air/fuel ratio feedback monitor

Sensor (The sensor below is determined to be
normal)

｠

Mass airflow sensor

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-289

DIAGNOSTIC TROUBLE CODE PROCEDURES

｠

Engine coolant temperature sensor

｠

Intake air temperature sensor

｠

Barometric pressure sensor

13Ab-290

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES