NHTSA ID Number: 10252459
Manufacturer Communication Number: 15-301-22R
TSB/Document Date: 2024-04-02
Summary
This bulletin announces reprograming files for the optimization of Gen 4 Denso CP1 audio and navigation head units.
ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
CLAIMS PERSONNEL
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
q
© 2020 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
22-23MY WRX Models
NUMBER: 15-301-22R
SUBJECT:
Reprogramming File Availability for Optimization
of Gen 4 Denso CP1 Infotainment Systems
DATE: 09/09/22
REVISED: 03/15/24
INTRODUCTION:
The following information announces reprogramming file availability and provides a software
update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head
units utilized in the models listed above. As in previous models, the procedure will involve either
downloading the software update files from Subarunet or using those sent directly from Nuspire to
the SDS Notebook and transferring them onto a USB flash drive for head unit installation.
It is VERY IMPORTANT to read and understand this information completely before proceeding.
CAUTION: VEHICLE SERVICE PERFORMED BY UNTRAINED PERSONAL COULD RESULT
IN THE EQUIPMENT DAMAGE OR EVEN SERIOUS INJURY.
Service Bulletin is intended for use by trained technicians ONLY. It informs technicians of
conditions, which may occur in some vehicles or provides information, which could assist with
proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety
instructions, and know-how to do the job correctly and safely.
A timeline chart along with a complete list of all the conditions addressed and enhancements included
in this and previous Denso software updates are provided in “Appendix D” and “Appendix E”
located at the end of this bulletin.
IMPORTANT NOTE: The update contains 3 folders and 1 file. When performing an update,
the USB must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set. Please note: The same set of software update files
will be used for BASE, MID and HIGH grade audio systems for 22-23WRX.
NEVER reuse or combine files from a prior update with a newer version.
CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD
RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS.
Subaru Service Bulletins are intended for use by professional technicians ONLY. They
are written to inform those technicians of conditions that may occur in some vehicles,
or to provide information that could assist in the proper servicing of the vehicle. Properly
trained technicians have the equipment, tools, safety instructions, and know-how to
do the job correctly and safely. If a condition is described, DO NOT assume that this
Service Bulletin applies to your vehicle, or that your vehicle will have that condition.
Subaru of America, Inc. is
ISO 14001 Compliant
ISO 14001 is the international standard for
excellence in Environmental Management
Systems. Please recycle or dispose of
automotive products in a manner that is friendly
to our environment and in accordance with all
local, state and federal laws and regulations.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 1 of 45
PART INFORMATION:
NOTE: High Level unit is equipped with Navigation option
(Map icon on Home screen)
-
11.6-Inch Display, Mid and High Level Units
-
Dual 7.0-Inch Display, Base Level Unit
Materials Required:
An empty, USB 2.0 or 3.0 storage device (flash drive) will be needed to perform the update
procedure. The device should be dedicated to storing and transferring these updating files only. It
must be a minimum of 64GB or more in size and contain a NTFS file format before downloading the
update files onto it. Be sure to locate and re-format any existing USB drives used for updating audio
units. They must be fully cleared before adding these new update files to them.
IMPORTANT NOTES:
•
NEVER change the update file names after downloading them.
•
NEVER save any other files on the same flash drive.
There are various types of USB flash drive available from many suppliers. If the head unit does
NOT recognize the USB drive during the reprogramming process due to Controller IC type of USB
drive or Compatibility with the head unit, confirm the flash drive format is NTFS. The flash drive
must be formatted for NTFS. If a recognition problem persists, use a USB flash drive from another
manufacturer.
•
Kingston®:
Kingston DataTraveler G3 Series DataTraveler 100 G3 DT100G3/64GB
Kingston DataTraveler SE9 Series DataTraveler SE9 G2 3.0 DTSE9G2/64GB
Kingston Digital 64GB Data Traveler 3.0 USB Flash Drive - Violet (DTIG4/64GB )
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 2 of 45
•
SanDisk®:
SanDisk Ultra Series SDCZ48-064G-J57
SanDisk Cruzer Blade Series 64GB
SanDisk Cruzer Glide Series CZ60 SDCZ60-064G-B35 64GB
•
Transcend®:
JetFlash 790 Series TS64GJF790KBE
•
PNY®:
PNY Retract USB 3.0 Flash Drive, 64GB, black (P-FD64GTRTC-GE)
•
Silicon Power®:
2 Pack USB 3.0/3.1 Gen1 USB Flash Drive Blaze B02
IMPORTANT NOTE: The update contains 3 folders and 1 file. When performing an update,
the USB must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set. Please note: The same set of software update files
will be used for BASE, MID and HIGH grade audio systems for 22-23 WRX.
NEVER reuse or combine files from a prior update with a newer version.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
STEP 1- VERY IMPORTANT: Before proceeding with the software updating procedure, the
currently installed software version ID MUST be confirmed by following the steps below:
1a) After starting the engine and system boot-up completes, from the HOME screen, touch the
Settings button.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 3 of 45
1b) Press the General button. Use the down arrow to scroll to System Information then press to
display the System Information / Version information.
The examples below identify the head unit model and the last 6 digits signify the software version
number.
If on a WRX, the software version number should read:
22-23MY Model
MY
22-23MY
Carline
WRX
F21SHMxxx-xxx(High model software)
F21SMMxxx-xxx(Mid model software)
F21SBMxxx-xxx(Base model software)
Trim/Grade
Older Software Versions
Latest Software Version
BASE
101-780
121-980
132-080
142-180
152-280
MID
101-780
121-980
132-080
142-180
152-280
HIGH
101-780
121-980
132-080
142-180
152-280
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 4 of 45
If the software version number matches “Older Software Versions” proceed to STEP 2 below. If the
software version is “Latest Software Version” as the unit already has the latest software version
installed. Proceed to the WARRANTY / CLAIM INFORMATION section of the TSB and process
a claim for Version Check Only.
STEP 2- Prepare the USB:
CAUTION: Do not use any USB flash drive which utilizes file organizing software or an operating
system.
VERY IMPORTANT: Before attempting to download any data files, confirm the PC and flash drive
being used is not infected with any virus. The flash drive MUST be formatted for NTFS.
•
Make sure the USB flash drive contains no other files.
•
Right click on the corresponding “Removable Disk”.
•
Select “Format”.
•
From the File System drop-down menu, select “NTFS”
•
Check the “Quick Format” box (if not already done).
•
Click on “Start” to format the USB flash drive.
STEP 3- Download the Update Files to the USB:
The files are available for download on Subarunet (see “A” below).
The applicable reprogramming files have also been sent directly to retailers by Nuspire in the same
way a Select Monitor Update would be pushed out. (see “B” below).
Follow “A” when using files downloaded from Subarunet.
Follow “B” when using the files sent directly to the SDS notebook from Nuspire.
“A” When using update files downloaded from Subarunet:
A
Click Here to Access the Downloads
for Audio/Navigation
Information on Subarunet
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 5 of 45
IMPORTANT: Files downloaded from Subarunet will be .zip files and must be unzipped before
they can be used. Using the normal audio / navigation system file update download procedure: Go to
Subarunet, select Service Operations and Technical>>Forms/Downloads>>Gen 4/Denso for Audio/
Navi then click on the applicable Hyperlink to download the file(s) to your SDS Notebook or PC:
Updates for Gen 4.0 Denso Audio and Navigation Head Units - 2022-2023MY WRX:
22-23 WRX-Denso-CP1 AUDIO UPDATE-March 2024
•
Go to Downloads.
•
CAUTION: After download is complete, NEVER change the file or folder names.
•
Open / display the contents of File folder, for example: “File name TBD”.
•
Click on “Extract All Files”.
•
The screen below will appear to set a destination for the extracted file.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 6 of 45
•
Double-click on the required folder
•
Copy all files then paste (or click / drag) it to the “clean” USB flash drive as listed
(Removable Disk) in the directory.
IMPORTANT NOTE: The update contains 3 folders and 1 file. When performing an update,
the USB must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set. Please note: The same set of software update files
will be used for BASE, MID and HIGH grade audio systems for 22-23 WRX.
NEVER reuse or combine files from a prior update with a newer version.
•
To avoid confusion, use a permanent marker to label the flash drive with the file contents
(e.g. 2022MY WRX CP1).
•
Go to Step 4.
“B” When using update files sent directly from Nuspire:
•
Go to My Documents on the GUI screen click on the folder “Denso CP1 Audio-Navi Update
Files” to display the list of available update files shown below.
IMPORTANT: Always confirm there is a correct folder. If not, the SDS notebook hasn’t
been updated with the latest release. Please contact Nuspire to request they resend the
update.”
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 7 of 45
•
CAUTION: After download is complete, NEVER change the file or folder names.
•
Double-click on the required folder and the update file will display as shown.
•
Select all folders and files and either copy / paste or click / drag them to the USB flash drive.
IMPORTANT NOTE: The update contains 3 folders and 1 file. When performing an update,
the USB must contain the matching number of folders and files and all files must be replaced.
ALWAYS use the latest files together as a set. Please note: The same set of software update files
will be used for BASE, MID and HIGH grade audio systems for 22-23 WRX.
NEVER reuse or combine files from a prior update with a newer version.
•
Once all files have been loaded onto the USB flash drive, right click on the drive and select
“Eject”.
CAUTION: NEVER change the file names.
•
Remove the USB flash drive after the prompt appears that says “Safe to Remove Hardware”.
•
Mark the USB to indicate the head unit it will update (2022MY WRX CP1 in this example).
•
Proceed to STEP 4 below.
STEP 4- Perform the software update
CAUTIONS:
•
NEVER attempt to install the software immediately following an exchange module
installation.
Let the system restart first and operate for 20 minutes.
•
NEVER attempt to install the software a second time for 30 minutes following a
previously unsuccessful software installation.
•
NEVER attempt to install the software for at least 30 minutes after completing a
FOTA update.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 8 of 45
Best practice is to prevent USB software update conflicts with FOTA software update. Please
confirm “Automatically Check for Update” setting is turned off following the steps below, prior
to starting the software update via USB.
4a) Perform the update in a well ventilated location if updating with the engine running OR
with the ignition ON and a battery charger connected.
4b) PRESS and HOLD the RIGHT-side temperature control buttons (both up and down)
and press the Tune / Scroll knob 6 times then release all to display the Dealership Mode
Menu.
High/Mid
Base
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 9 of 45
4c) Select Software Update from the Dealership Mode menu.
High/Mid
Base
IMPORTANT NOTE: On a RARE occasion, the message “Software update setup is
initializing…” may be displayed. Should this occur, proceed to “Appendix A” starting on pg. 16
of this bulletin for further instruction.
4d) The screen below will be displayed.
High/Mid
Base
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 10 of 45
4e) Insert reprogramming USB into the USB port and press OK.
NOTE: If after plugging in the USB, the screen displays a Software Loading
Unsuccessful message, confirm the USB device has been properly formatted and the the
software on the device matches the system being reprogrammed (example: Base software is
being used to update a Base system) and retry.
High/Mid
Base
NG
OK
OK
NG
If you get the message Software Update Incomplete as shown below, please don’t replace the
hardware but retry updating the software according to the instructions in “Appendix B ” on
pg. 17.
High/Mid
Base
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 11 of 45
4f) The screen below will be displayed. Press OK to start the software update.
NOTE: The actual software version displayed will be different from the picture shown below.
Base
High/Mid
Please refer to
the following
table.
Please refer to
the following
table.
Software Version Table
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 12 of 45
4g) Once the update begins, the screen below will be displayed with a progress bar. It takes about
15 to 20 minutes for the update to complete.
VERY IMPORTANT: NEVER turn off the ignition while the software update is in process.
High/Mid
Base
4h) When the software update is complete, the following screen will be displayed (the actual
software version will be different).
Base
High/Mid
Press “OK”
Press “OK”
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 13 of 45
IMPORTANT NOTE:
On a rare occasions a “Software Update Incomplete” message may appear in this step which occurs
due to a bug in the software update procedure. Proceed to Step 4i below to confirm the software
version has been updated to the latest version.
4i) Select OK in the screen above then remove the H/U reprogramming USB from the USB port.
4j) Turn the Ignition OFF, open the driver’s door then close the driver’s door.
4k) Wait for 3 minutes, then turn the ignition ON.
4l) Access Dealership Mode following steps provided item 4b and using the tables below, confirm
the software update completed successfully.
NOTE: The new Software Version number must be entered when prompted at claim entry.
Software Version Table
4m) Enable the setting “Automatically Check for Updates” as shown in the steps below.
4n) Turn the ignition OFF, open the driver’s door then close the driver’s door to complete the
procedure.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 14 of 45
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited Warranty period or covered by an active Subaru
Added Security Gold plan, this repair may be submitted using the following claim information:
Labor Description
Labor
Operation #
Labor
Time
Fail Codes
DENSO CP1 SOFTWARE UPDATE-INCLUDES VERSION CHECK
A031-173
1.0
ZTZ-48
(BASE, MID, HIGH)
REMINDER: The new Software Version number must be entered when prompted at claim entry.
NOTE: Retailers are now permitted to claim up to $5.00 per claim in Sublet to help offset the cost
of replacement USB drives. Repeated re-formatting of the USB drives used for reprogramming
can compromise their ability to operate properly. Over time, hardware connections can loosen and
stored data files can become corrupted. Retailers are responsible for replacing any worn or otherwise
inoperable USB drives as needed. This compensation is intended to help defray those costs.
IMPORTANT REMINDERS:
•
SOA strongly discourages the printing and/or local storage of service information as
previously released information and electronic publications may be updated at any time.
•
Always check for any open recalls or campaigns anytime a vehicle is in for servicing.
•
Always refer to STIS for the latest service information before performing any repairs.
Continued...
Bulletin Number: 15-301-22R; Revised: 03/15/24
Page 15 of 45
“APPENDIX A”
Follow this procedure in the RARE case of “Software update setup is initializing…” message is displayed:
• If the screen shown below appears, WAIT for approximately 30 minutes or as long as necessary
(waiting for longer than 60 minutes might indicate system malfunction). In that case please
perform recovery according to the instructions in “Appendix B ” to allow the Software update
setup initialization process to complete.
Base
High/Mid
•
The screens shown below will be displayed when the process completes.
Base
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TSB/Document ID: 15-301-22R
Replacement Service Bulletin Number:
MFR Communication Date: 2024-03-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
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- 【✨ 𝗜𝗙𝟳𝟰𝟱 𝗴𝗼𝗲𝘀 𝗯𝗲𝘆𝗼𝗻𝗱 𝗯𝗮𝘀𝗶𝗰 𝗰𝗼𝗱𝗲 𝗿𝗲𝗮𝗱𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝟭𝟬 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲𝗱 𝗳𝘂𝗻𝗰𝘁𝗶𝗼𝗻𝘀—𝗗𝗧𝗖 𝗟𝗼𝗼𝗸𝘂𝗽, 𝗜/𝗠 𝗥𝗲𝗮𝗱𝗶𝗻𝗲𝘀𝘀, 𝗙𝗿𝗲𝗲𝘇𝗲 𝗙𝗿𝗮𝗺𝗲, 𝗟𝗶𝘃𝗲 𝗗𝗮𝘁𝗮, 𝗢𝟮𝗦, 𝗢𝗕𝗠, 𝗘𝗩𝗔𝗣, 𝗮𝗻𝗱 𝗺𝗼𝗿𝗲. 】Pulling a code tells you something is wrong. IF745 tells you what the code means, when the fault happened, and what data surrounds it. Pass emissions with one I/M Readiness tap. Freeze the fault moment with Freeze Frame. Monitor live sensor data in real time. Turn cryptic codes into clear answers.
- 【🛒 𝗜𝗙𝟳𝟰𝟱 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝘀 𝗳𝘂𝗹𝗹-𝘀𝘆𝘀𝘁𝗲𝗺 𝗱𝗶𝗮𝗴𝗻𝗼𝘀𝘁𝗶𝗰𝘀 𝗮𝗰𝗿𝗼𝘀𝘀 𝗮𝗹𝗹 𝗺𝗼𝗱𝘂𝗹𝗲𝘀—𝗲𝗻𝗴𝗶𝗻𝗲, 𝗔𝗕𝗦, 𝗮𝗶𝗿𝗯𝗮𝗴, 𝘁𝗿𝗮𝗻𝘀𝗺𝗶𝘀𝘀𝗶𝗼𝗻, 𝘀𝘁𝗲𝗲𝗿𝗶𝗻𝗴, 𝘀𝘂𝘀𝗽𝗲𝗻𝘀𝗶𝗼𝗻, 𝗯𝗼𝗱𝘆 𝗲𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀, 𝗮𝗻𝗱 𝗺𝗼𝗿𝗲. 】Warning lights on but you don't know why? Skip the $100+ diagnostic fee at the shop. Run a complete self-check from your driveway. IF745 reads and clears fault codes, retrieves ECU info, and displays live data from every accessible module—delivering a full vehicle health report in minutes, without leaving home.
- 【✅𝗜𝗙𝟳𝟰𝟱 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗮 𝟳-𝗶𝗻𝗰𝗵 𝗱𝗶𝘀𝗽𝗹𝗮𝘆, 𝗲𝗿𝗴𝗼𝗻𝗼𝗺𝗶𝗰 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗪𝗶-𝗙𝗶 𝘂𝗽𝗱𝗮𝘁𝗲𝘀, 𝗮𝗻𝗱 𝘇𝗲𝗿𝗼 𝘀𝘂𝗯𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻 𝗳𝗲𝗲𝘀 𝗳𝗼𝗿 𝗵𝗮𝘀𝘀𝗹𝗲-𝗳𝗿𝗲𝗲 𝗱𝗶𝗮𝗴𝗻𝗼𝘀𝘁𝗶𝗰𝘀.】Large screen means no squinting. Intuitive navigation and customizable data displays put key info at your fingertips. Wi-Fi delivers lifetime free updates without a computer. No recurring fees. No hidden costs. Just a reliable tool that works as hard as you do.
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