Mitsubishi Outlander XL. Manual - part 358

this code to be set are:)

｠

Throttle actuator control motor relay circuit 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

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 DTC P1232 set?

YES:

 Go to Step 2.

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

(1)

Turn the ignition switch to the "ON" position.

(2)

After the DTC has been deleted, read the DTC again.

(3)

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

Q:Is DTC P0657 set?

YES:

 Refer to DTC P0657 - Throttle actuator control motor

relay circuit malfunction P.13Ab-601.

NO:

 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.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-627

DIAGNOSTIC TROUBLE CODE PROCEDURES

DTC P1233: Throttle Position Sensor (main) Plausibility

M11310100379USA0000010000

TECHNICAL DESCRIPTION
Compare  the  actual  measurement  of  volumetric
efficiency  by  a  mass  airflow  sensor  signal  with
volumetric efficiency estimated from a throttle position
sensor (main) signal.

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

Logic Flow Chart

ZK604062 AA00

Start

End

No

No

Yes

Yes

Yes

No

Malfunction

Good

Continuous failure

for specfied time

|Ec-calculated Ec|

> 33%

Monitoring

conditions

Ec: load valve

Check Conditions

｠

The  difference  between  the  actual  volumetric
efficiency  and  the  volumetric  efficiency  estimated

by the (main) throttle position sensor is 0 % or more.
Or, the volumetric efficiency is 60 % or less.

13Ab-628

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES

｠

The engine speed is between 750 and 3,000 r/min.
Or,  the  (main)  throttle  position  sensor  output
voltage is 3 volts or more.

Judgment Criterion

｠

For 0.4 second, the difference between the actual
volumetric efficiency and the volumetric efficiency
estimated by the (main) throttle position sensor is
33 % or more.

OBD-II DRIVE CYCLE PATTERN
Refer  to  Diagnostic  Function  -  OBD-II  Drive  Cycle
Pattern 17 P.13Ab-8.

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

｠

Throttle position sensor (main) system failed.

｠

Intake system vacuum leak.

｠

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. 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 P1233 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 13:
Throttle Position Sensor (main).

(1)

Turn the ignition switch to the "ON" position.

(2)

Detach the intake air hose at the throttle body.

(3)

Disconnect the connector of the throttle position sensor.

(4)

Use test harness special tool (MB991658) to connect only
terminals No. 3, No. 4, No. 5, and No. 6.

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

13Ab-629

DIAGNOSTIC TROUBLE CODE PROCEDURES

(5)

Set scan tool MB991958 to the data reading mode for item
13, Throttle Position Sensor (main).

｠

Output voltage should be between 0.3 and 0.7 volt when
the throttle valve is fully closed with your finger.

｠

Output  voltage  should  be  4.0  volts  or  more  when  the
throttle valve is fully open with your finger.

(6)

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:

 Go to Step 3.

STEP 3. Check for intake system vacuum leak.

Q:Are there any abnormalities?

YES:

 Repair it. Then go to Step 5.

NO:

 Go to Step 4.

STEP 4. 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 P1233 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 5.

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 5. 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 P1233 set?

YES:

 Replace the troubleshooting.

NO:

 The procedure is complete.

DTC P1234: Throttle Position Sensor (Sub) Plausibility

M11310100380USA0000010000

TECHNICAL DESCRIPTION
Compare  the  actual  measurement  of  volumetric
efficiency  by  a  mass  airflow  sensor  signal  with

volumetric efficiency estimated from a throttle position
sensor (sub) signal.

13Ab-630

MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>

DIAGNOSTIC TROUBLE CODE PROCEDURES