SUBJECT:

No:

CHECK ENGINE LIGHT ILLUMINATES WITH
DTC P0401/P0400

DATE:

TSB-23-13-004
August 2023

MODEL:

Outlander Sport

CIRCULATE TO:

[ ] GENERAL MANAGER

[ X ] PARTS MANAGER

[ X ] TECHNICIAN

[ X ] SERVICE ADVISOR

[ X ] SERVICE MANAGER

[ X ] WARRANTY PROCESSOR

[ X ] SALES MANAGER

PURPOSE
This reflash is to correct the ENGINE ECU software when the check engine illuminates while
idling or driving and the DTC Codes below are stored:
2019 Outlander Sport:
2020-2023 Outlander Sport:

P0401 (Exhaust Gas Recirculation Flow Insufficient Detected)
P0400 (Exhaust Gas Recirculation System)

Please reprogram the ECU with the countermeasure software to correct the issue of the
EGR Valve Angle, upon customer complaint.

AFFECTED VEHICLES
2019-2023 Outlander Sport

REPAIR PROCEDURE
•
•
•
•
•
•

Confirm your MUT-III SE is updated with the latest reprogramming database.
Write down all the electrical device settings such as A/C and radio before reprogramming.
The settings should be restored after reprogramming.
Turn off all electrical devices to minimize the vehicle's electrical load. Also use an external
power source to ensure that the vehicle battery maintains the specified voltage during
reprogramming.
Make sure the USB cable and MUT-III SE main harness are not damaged.
Connect the MUT-III SE to an AC power source to prevent internal battery discharge.
Stay away from the under hood area during reprogramming. If the connection between
the Engine ECU and ETACS is lost, the cooling fan operates as fail-safe.

NOTE: If an affected vehicle has a Malfunction Indicator Lamp (MIL) illuminated before
reprogramming, and DTCs are listed in the ECU memory, save the ALL-DTC results and
then erase the codes prior to reprogramming. If hard codes are present that are
applicable to the target ECU and won’t clear, diagnose and repair these codes first and
then proceed with reprogramming.

Copyright 2023, Mitsubishi Motors North America, Inc.
The information contained in this bulletin is subject to change. For the latest version of this document, go to the
Mitsubishi Dealer Link, MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).

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EQUIPMENT
•
•
•
•

The following equipment is needed to reprogram the ECU:
VCI (Vehicle Communication Interface) or VCI Lite - MB991824 or MB992744
MEDIC Laptop/Tablet with A/C power adapter - 520924, or FZG1MK2
MUT III Main Harness "A" (blue connector at the DLC end) - MB991910 or
MB992745
USB 2.0 Cable - MB991827 or MB992747
MEDIC 3.5/4 update at 808 or higher
For Standalone MUT III units, MUT3-SE Reprogramming Database N230701 or
higher

•
•
•

ECU REPROGRAMMING CHART
Model

GA2W

Data No.
(MFF File
Name)

New HW
Part No.

1860D225

1860D309

1862D226

1860D472

1862D227

1860D744

1862D228

1860D779

1862D229

1860D859

New SW Part
No./Ver.
1860D30901
/14 72 12
1860D47201
/15 74 05
1860D74401
/16 37 03
1860D77901
/16 50 05
1860D85901
/17 00 04

Target HW
Part No.
Same as New
Same as New
Same as New
Same as New
Same as New

Target SW
Part No./Ver.

Remarks

1860D30900
/14 72 09
1860D47200
/15 74 03
1860D74400
/16 37 01
1860D77900
/16 50 03
1860D85900
/17 00 02

19MY NAS GA2W
4B11 CVT
20MY NAS GA2W
4B11 CVT
21MY NAS GA2W
4B11 CVT
22MY NAS GA2W
4B11 CVT
23MY NAS GA2W
4B11 CVT

REPAIR PROCEDURE
SOFTWARE/MEDIC VERSION VERIFICATION
1.

Verify that the ECU has not already been updated to the latest S/W number in the table above.
If the IPDM ECU is at the latest level, reprogramming is not necessary.
NOTE: Reprogramming the target ECU with the latest database (e.g., N230701)
includes all past and current reprogramming for TSBs of affected vehicles. It is not
necessary to reprogram the ECU for each previous TSB.

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For MEDIC 3.5/4 users only: (MUT-III SE users go to step 5)
2. Verify the MEDIC 3.5/4 is at version 3.5 and at update 808 or higher.
If your MEDIC 3.5/4 update is at least 808, continue with the Reprogramming Procedure. If
your MEDIC 3.5/4 update is below 808, update your MEDIC as follows.

3. Select the MEDIC 3.5/4 Admin tab and click on “Updates”.

4. If the MEDIC update screen advises updates are available, click the “Begin” button.
After all updates are complete, GO TO THE REPROGRAMMING PROCEDURE.

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5. Click “STV”.

a. Confirm the vehicle information is accurate and click the ECU reprogramming button.

b. Click “ECU Reprogramming (SDB) and press the OK button”.

c. Confirm that the database number displayed is N230701 or higher.
i. If the database number displayed on your MUT3-SE is N230701 or greater,
continue to the next section.
ii. If the reprogramming database number displayed on your MUT3-SE is lower
than N230701, then the MUT3-SE database needs to be updated.

d. Once the database number
is confirmed, hit the Home
button to go back to the
System Select screen.

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REPROGRAMMING PROCEDURE
To ensure that the vehicle battery maintains 12V during the procedure,
hook- up a battery charger to the vehicle during the procedure.
NOTE: VCI Stand−alone reprogramming is not available for this procedure. The laptop/tablet
and the VCI must remain connected for the entire procedure.
1. Connect the equipment as follows:
NOTE: VCI Lite and MEDIC 4.0 Toughpad shown for illustration purposes only.

Data Link
Connector (Blue
End)
MUT−III SE
Main Harness

•

Turn the MEDIC PC/tablet on. If the battery
indicator in the lower right hand corner of the
screen does not show a full charge, it is
recommended that either the battery be
charged prior to beginning or be used with the
A/C power adaptor connected.

•

Connect the USB cable to the VCI/VCI Lite. When
the laptop/tablet displays the MUT-III SE main
screen, connect the USB cable to the device.
Connect the MUT-III SE main harness with the
blue DLC connection to the VCI/VCI Lite. Connect
the blue connection of the MUT-III SE main
harness to the vehicle's data link connector.

•
USB Cable
Toughpad
(back)

VCI Lite

•

For VCI only (p/n MB991824): Turn the VCI
power switch ON. Verify that the indicator
lamp in the upper right corner of the screen is
green.

DO NOT DISTURB THE HARNESS CABLES OR CONNECTIONS DURING THE REPROGRAMMING PROCESS
AS IT COULD CAUSE THE CONTROL UNIT TO LOSE DATA. IF THE USB CABLE IS DISCONNECTED
DURING THIS PROCEDURE, A WARNING MESSAGE WILL DISPLAY.
NOTE: Due to limited space it may be easiest to connect cable onto negative ground post
and ground strap as shown below.
2. Turn the ignition switch to the “ON”
position.

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3. Using MEDIC, from the main page, click the
“MUT3-SE” icon at the top center of
the screen.

4. The System Select screen opens and
populates with some basic information
from the vehicle. Look at the label on the
passenger side B pillar to identify the
appropriate class. (See B pillar label below;
class is labeled as “model”). If necessary,
select the correct class from the drop-down
list.

*Image for illustration purposes only

5.

Verify that the ECU has not already been updated to the latest S/W number shown in the
“ECU Reprogramming Chart” in this TSB. If the ECU is at the latest level, reprogramming is
not necessary. If reprogramming is necessary, proceed with the following steps.
a. Select ECU Reprogramming (SDB).

b. Select “MFI” from Systems List and select the
appropriate option in the "Loading
Option Setup" (image below). Click the OK
button.

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c. After confirming the reprogramming
data listed, click the OK button to
begin reprogramming the ECU.

d. Reprogramming will begin and a progress bar will appear followed by a notification upon
successful completion.

6. Confirm the reprogramming results and press the OK button.

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a. Select ALL DTCs.

b. Select Erase and Read all DTCs.

c. Click the OK button to begin.

d. Results and a completion notification will be
displayed.

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7. Using a ball-point pen, enter the appropriate ECU part number, Software Part Number (ROM
ID#), this Technical Service Bulletin number, your dealer code, and the current date on
the Engine Compartment/Control Module Label (p/n MSSF024G00). The Vendor Code is
not applicable. The label is available from your facing PDC.

8. Test drive the vehicle to confirm proper operation.

WARRANTY
This bulletin is supplied as technical information only and is not an authorization to
repair. If an affected vehicle is reported with the described condition, diagnose the
condition, repair as described in this bulletin and submit a normal warranty claim using
the information below.
Operation Code
138501LG

08/02/2023

Operation
Engine-ECU reprogramming

Page 9 of 9

Quantity
1

Work Time
0.3H

(5332/TSL2306016A)