TSB-23-54-006

SUBJECT:
CHECK ENGINE LIGHT ILLUMINATES WITH
DTC RELATED TO PARKING SENSOR
SYSTEM FAULT
No:
DATE:
TSB-23-54-006
September 2023
MODEL:
See below
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 SONAR Control Unit (CU) software when the check engine illuminates
while driving at low speed or upon deceleration before stopping. One of the following DTC codes
may be present: B2729-97, B272A-97, B272B-97, B272C-97, B2720-97, B2721-97, B2722-97, OR
B2723-97. When DTC(s) are detected, a warning light with the message "Parking Sensor System
Fault See Owner's Manual" is displayed.
BACKGROUND
When rain, snow, or mud adhere to the sonar sensor surface or bumper and block the sonar
detection ability, the sensor will stop operating and the check engine light will illuminate. Note
that the sensor will reactivate once the blockage has been cleared (i.e. rain, snow or mud
removed).
Please reprogram the SONAR CU with the countermeasure software which provides extended
sonar blockage detection time, upon customer complaint.
AFFECTED VEHICLES
2022-2023 Outlander
2022-2023 Outlander Plug-in Hybrid
REPAIR PROCEDURE
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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 SONAR CU 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 SONAR CU 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
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•
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The following equipment is needed to reprogram the Sonar CU:
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 815 or higher
For Standalone MUT III units, MUT3-SE Reprogramming Database N230401NR or higher
ECU REPROGRAMMING CHART
Based on the part number reprogramming or replacement is necessary. When replacing the
ECU the auto-configuration operation needs to be completed (reference TIN-21-00-008).
*1 Some new spare parts (AX000746) printed with target HW part number are updated and have
a sticker labeled 7.4.3.8 attached.
REPAIR PROCEDURE
SOFTWARE/MEDIC VERSION VERIFICATION
1. Verify that the SONAR CU has not already been updated to the latest S/W number in the table
above. If the SONAR CU is at the latest level, reprogramming is not necessary.
NOTE: Reprogramming the target SONAR CU with the latest database (e.g.,
N230401NR) includes all past and current reprogramming for TSBs of affected
vehicles. It is not necessary to reprogram the SONAR CU 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 815 or higher.
If your MEDIC 3.5/4 update is at least 815, continue with the Reprogramming Procedure. If
your MEDIC 3.5/4 update is below 815, 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. Select “SONAR" in the System List, choose the Loading Option Setup for METER/M&A from
the drop down and press the OK button.
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d. Confirm that the database number displayed is N230401NR or higher.
i. If the database number displayed on your MUT3-SE is N230401NR or greater,
continue to the next section.
ii. If the reprogramming database number displayed on your MUT3-SE is lower than
N230401NR, then the MUT3-SE database needs to be updated.
e. Confirm the New HW Part No., click in the selection box and press the OK button.
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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 “SONAR" in the System List, choose the Loading Option Setup for METER/M&A from
the drop down and press the OK button.
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c. Click the selection box and press the OK button to begin reprogramming data.
d. Reprogramming will begin and a progress bar will appear followed by a notification upon
successful completion.
e. Confirm the reprogramming results and press the OK button.
f. To verify the ECU information, click home, select the Special Function tab, then press the ECU
Information button.
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g. Select ALL DTCs.
h. Select Erase and Read all DTCs.
i. Click the OK button to begin.
j. Results and a completion notification will be
displayed.
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k. If an active DTC is found after reprogramming, perform auto-configuration according to the
Service Manual, confirm DTC is no longer active and erase DTC's in all systems.
6. 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.
7. 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.
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