Mitsubishi Outlander XL. Manual - part 385

STEP 1. Test the OBD-II drive cycle.

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)

Turn the ignition switch to the "ON" position.

(3)

Carry out the test drive with the drive cycle pattern. Refer to
Diagnostic  Function  -  OBD-II  Drive  Cycle  -  Pattern  24  P.
13Ab-8.

(4)

Check the diagnosis trouble code (DTC).

Q:Is DTC P02253 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.

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.

DTC P2423: HC adsorber (HC trap catalyst) efficiency below threshold

M11310100396USA0000010000

TECHNICAL DESCRIPTION
After the fuel cut-off during the deceleration, the rich
control is performed. Depending on the point of time
when  the  catalyst  releases  Oxygen  which  is
temporarily  absorbed  by  the  lean  control,  the  HC
adsorber (HC trap catalyst) within center exhaust pipe
is judged on its deterioration in performance.

DESCRIPTIONS OF MONITOR METHODS
When the difference in the s witching time into the rich
control is below the specified time between the heated
(rear)  oxygen  sensor  and  the  center  exhaust  pipe
heated oxygen sensor, it is judged that a malfunction
exists.

MONITOR EXECUTION
Once per driving cycle

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 (front) monitor

｠

Heated oxygen sensor (rear) monitor

｠

Center exhaust pipe heated oxygen sensor monitor

｠

Heated oxygen sensor heater (front) monitor

｠

Heated oxygen sensor heater (rear) monitor

｠

Center exhaust pipe heated oxygen sensor heater
monitor

｠

Misfire monitor

｠

Fuel system monitor

｠

Air/fuel ratio feedback monitor

Sensor (The sensor below is determined to be
normal)

｠

Mass airflow sensor

｠

Engine coolant temperature sensor

｠

Intake air temperature sensor

｠

Barometric pressure sensor

｠

Throttle position sensor

｠

Accelerator pedal position sensor

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-735

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS

Logic Flow Chart

Start

End

No

Yes

Malfunction

Good

Monitoring

Conditions

Continuous fuel cut

 

>= 3secs

Fuel cut mode changes

from ON to OFF ?

1.5secs have passed

after rear oxgen sensor output voltage

reaches 0.6V

3rd oxgen sensor

   output voltage > 0.6V

No

No

No

Yes

Yes

Yes

Yes

No

ZK604057 AA00

Check Conditions

｠

Engine speed is lower than 1,313 r/min.

｠

Volumetric efficiency is lower than 20 percent.

｠

The throttle valve is closed.

｠

Barometric  pressure  is  higher  than  76  kPa  (22.4
in.Hg).

｠

Intake air temperature is higher than -10°C (14°F).

｠

The cumulative mass airflow is higher than 2,900 g

13Ab-736

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

｠

The fuel shut-off mode continues for 3 seconds or
more.

｠

After the fuel shut-off mode is terminated, the output
voltage of the center exhaust pipe heated oxygen
sensor is0.2 V or less for 5 seconds.

Judgment Criterion

｠

After the output voltage of the rear heated oxygen
sensor  reaches  0.6  V,  the  output  voltage  of  the
center exhaust pipe heated oxygen sensor reaches
0.6 V within 1.5 seconds.

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: )

｠

HC trap catalyst deterioration within center exhaust
pipe.

｠

ECM failed.

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

｠

MB991827: USB Cable

｠

MB991910: Main Harness A

STEP 1. Replace the center exhaust pipe.

(1)

Replace the center exhaust pipe.

(2)

Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic  Function  -  OBD-II  Drive  Cycle  -  Pattern  11  P.
13Ab-8.

(3)

Check the diagnostic trouble code (DTC).

Q:Is DTC P2423 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.

NO:

 The inspection is complete.

DTC P2567: LIN Communication Check by Radiator Sensor (Thermistor Error)
<California>

M11310100418USA0000010000

RADIATOR SENSOR CIRCUIT
Refer to P.13Ab-658.

CIRCUIT OPERATION
Refer to P.13Ab-658.

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-737

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS

Logic Flow Chart

ZK603446AA00

Start

Monitoring

conditions

Thermistor error fails.

Specified times monitored?

Malfunction

End

Good

No

Yes

No

Yes

Yes

No

Check Condition

｠

Ignition switch: "ON"

｠

Battery positive voltage is higher than 11 volts

｠

Engine coolant temp -30°C (-22°F) to 110°C (230°
F)

Judgement Criteria

｠

When the radiator sensor is defective

｠

When the PCM is defective

OBD-II DRIVE CYCLE PATTERN

｠

None.

TROUBLESHOOTING HINTS (THE MOST LIKELY
CAUSES FOR THIS CODE TO BE SET ARE:)

｠

Radiator sensor failed.

｠

ECM failed.

DIAGNOSIS

Required Special Tools:

｠

MB991958: Scan Tool (M.U.T.-III Sub Assembly)

｠

MB991824: V.C.I.

｠

MB991827: USB Cable

｠

MB991910: Main Harness A

13Ab-738

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES