Mitsubishi Outlander XL. Manual — part 360

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. Using scan tool MB991958, read the diagnostic
trouble code (DTC).

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)

Read the DTC.

(4)

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

Q:Is the diagnostic trouble code other than P1235 set?

YES:

Refer to, Diagnostic Trouble Code Chart P.13Ab-44.

NO:

Go to Step 2.

STEP 2. Using scan tool MB991958, check data list item 10:
Mass Airflow Sensor.

(1)

Start the engine and run at idle.

(2)

Set scan tool MB991958 to the data reading mode for item
10, Mass Airflow Sensor.

(3)

Warm up the engine to normal operating temperature: 80°C
to 95°C (176°F to 203°F).

｠

The standard value during idling should be between 1,350
and 1,670 millivolts.

｠

When the engine is revved, the mass airflow rate should
increase according to the increase in engine speed.

(4)

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

Q:Is the sensor operating properly?

YES:

Go to Step 3.

NO:

Refer to, DTC P0101 - Mass Airflow Circuit Range/

Performance Problem P.13Ab-108, DTC P0102 - Mass Airflow
Circuit Low Input P.13Ab-115, DTC P0103 - Mass Airflow
Circuit High Input P.13Ab-121.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-635

DIAGNOSTIC TROUBLE CODE PROCEDURES

STEP 3. Check the trouble symptoms.

(1)

Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function - OBD-II Drive Cycle Pattern 17 P.
13Ab-8.

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P1235 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 4.

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 4. 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 17 P.
13Ab-8.

(2)

Check the diagnostic trouble code (DTC).

Q:Is DTC P1235 set?

YES:

Replace the troubleshooting.

NO:

The procedure is complete.

DTC P1236: A/D Converter

M11310100382USA0000010000

TECHNICAL DESCRIPTION
Monitors whether input voltage from the accelerator
pedal position sensor (sub) is normally converted into
a digital signal in the engine control module.

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 CONDITIONS

Check Condition

｠

Ignition switch is "ON" position.

Judgment Criterion

｠

When the input voltage from the (sub) accelerator
pedal position sensor is periodically 0 V for 0.45
second, the digital value of the input voltage
indicates 0.2 V or more.

OBD-II DRIVE CYCLE PATTERN
None.

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

｠

ECM failed.

13Ab-636

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

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. Using scan tool MB991958, read the diagnostic
trouble code (DTC).

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)

Read the DTC.

(4)

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

Q:Is DTC P1236 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 P1237: Accelerator Pedal Position Sensor Plausibility

M11310100383USA0000010000

TECHNICAL DESCRIPTION
Compare the output value of the accelerator pedal
position sensor (main) with that of the accelerator
pedal position sensor (sub).

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-637

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC SET CONDITIONS

Logic Flow Chart

ZK604064 AA00

Start

End

No

No

Yes

Yes

Yes

No

Malfunction

Good

Continuous

failure for 0.5sec

|APS (main)-APS (sub)|

>= 0.4V

Monitoring

conditions

Check Condition

｠

Change of accelerator pedal position sensor (sub)
output voltage per 40 milliseconds is lower than
0.06 volt.

Judgment Criterion

｠

Voltage obtained with the formula given below is 0.4
volt or higher for 0.5 second: accelerator pedal
position sensor (main) output voltage - accelerator
pedal position sensor (sub) output voltage.

OBD-II DRIVE CYCLE PATTERN
None.

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

｠

Accelerator pedal position sensor failed.

｠

ECM failed.

DIAGNOSIS

Required Special Tools:

｠

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

｠

MB991824: V.C.I.

｠

MB991827: USB Cable

13Ab-638

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES