ATTENTION:
GENERAL MANAGER

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PARTS MANAGER

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CLAIMS PERSONNEL

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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.

SERVICE MANAGER

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© 2023 Subaru of America, Inc. All rights reserved.

SERVICE BULLETIN
APPLICABILITY: 2023-24MY Legacy & Outback 2.4L
2022-23MY WRX
2023MY Ascent
SUBJECT:

NUMBER: 09-114-23R
DATE: 11/27/23
REVISED: 03/18/24

Reprogramming Files / DTC P04AE:
EVAP (System Purge Control Valve “B”
Performance / Stuck Open)

INTRODUCTION:
This bulletin the announces availability of new reprogramming files for the Engine Control
Module (ECM) developed to address cases of DTC P04AE (EVAP System Purge Control Valve
“B” Performance / Stuck Open). The new software contains optimized logic enhancing the ECM
self-diagnosis for DTC P04AE. If DTC P04AE is found to be detected by the ECM, perform the
reprogramming procedure outlined below.
PRODUCTION CHANGE INFORMATION:
The production change information regarding this software is currently TBD.
PAK FILE APPLICABILITY:
MY

22

Model

Transmission

File name

CVT

22765AR886.pk2

6MT

22765AR896.pk2

WRX

Old Part Number
22765AR880
22765AR881
22765AR882
22765AR883
22765AR884
22765AR885
22765AR890
22765AR891
22765AR892
22765AR893
22765AR894
22765AR895

Decryption
Keyword

New CID

BBD72E1A

LHBHC00C00G

DABE9E78

LHBHC00B00G

NOTE: The files listed above have been included in the October SSM update.
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: 09-114-23R; Revised: 03/18/24

Page 1 of 4

PFC FILE APPLICABILITY:
MY

23

Model

Transmission

File Description

Old Part Number

New CID

ASCENT

CVT

22765AS632.pfc

22765AS630
22765AS631

LHBK300Y00G

LEGACY &
OUTBACK

CVT

22765AS463.pfc

22765AS460
22765AS461
22765AS462

LHBK300G00G

OUTBACK
Wilderness

CVT

22765AS473.pfc

22765AS470
22765AS471
22765AS472

LHBK300H00G

CVT

22765AU001.pfc

22765AU000

LHBKC30N00G

MT

22765AU011.pfc

22765AU010

LHBKC30M00G

LEGACY &
OUTBACK

CVT

22765AT831.pfc

22765AT830

LHBKG00G00G

OUTBACK
Wilderness

CVT

22765AT841.pfc

22765AT840

LHBKG00H00G

WRX

24

NOTE: The files listed above can be found on SSM5-R.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
•

2022MY: Reprogram the ECM using the normal Flashwrite procedures.

•

2023MY and Newer: Reprogram the ECM following the normal SSM5-R
procedure. Detailed information regarding the SSM5-R reprograming procedures
can be found in TSB 14-28-21R.

REMINDER: Customer satisfaction and retention starts with performing quality repairs.
Subaru of America, Inc. (SOA) highly recommends utilizing either the Subaru Midtronics DCA8000
Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-1100 Diagnostic Battery
Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module
is being reprogrammed. Once the Midtronics charger is connected to the vehicle, if the battery is fully
charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode,
and have the battery voltage stabilized and ready for reprogramming.
Continued...
Bulletin Number: 09-114-23R; Revised: 03/18/24

Page 2 of 4

NOTES:
•

For instructions on using the Power Supply Mode, reference the applicable User Manual for
the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR81100 Diagnostic Battery Charger on STIS.

•

Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all
switched OFF before setting up the charger for Power Supply Mode.

•

Select the correct battery type (Enhanced Flooded, Flooded, Gel, AGM or AGM Spiral).

•

Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have
different CCA ratings. Always confirm the battery’s CCA rating before proceeding.

•

If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to
13.5 Volts.

•

DO NOT connect the DST-i or DST-010 until the Power Supply mode function has completed
its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on
the display.

•

Once Power Supply Mode reaches a steady 13.5 Volts, connect the DST-i or DST-010 to the
OBD connector and proceed with initiating the normal SSM5-R reprogramming process.

•

Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage
rises beyond 14 Volts while programming is in process, the procedure will abort. This can
indicate a need to test or charge the vehicle battery before any further attempt at programming
is made.

•

ALWAYS set the power supply voltage to 13.5 Volts when using Power Supply Mode. NEVER
turn the ignition switch on when charging at voltages 15 Volts or higher.

REMINDER: If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge
the battery fully before proceeding to reprogram the vehicle while using the Power Supply Mode.
NOTE: Control module failures resulting from battery discharge during reprogramming are not a
matter for warranty. Should any DTCs reset after the reprogramming update is performed, diagnose
per the procedure outlined in the applicable Service Manual.
WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited or Powertrain Limited Warranty period or covered by
an active Subaru Added Security Powertrain, Classic or Gold plan, this repair may be submitted using
the following claim information:
Labor Description

Labor Operation #

Fail Code

Labor Time

MFI OBDII REPORGRAMMING, ENGINE CONTROL
MODULE

A455-288

UPG-48

0.4

Continued...
Bulletin Number: 09-114-23R; Revised: 03/18/24

Page 3 of 4

IMPORTANT: Always note the original Calibration Identification number (CID) / ROMID the
vehicle came in with on the repair order before reprogramming and, make sure to list the NEW CID /
ROMID for any newly installed programming (as confirmed from the actual control module AFTER
installation). The NEW CID / ROMID MUST also be noted on the repair order as this information is
required for entry in the Miscellaneous Detail field during claim submission. These numbers can be
read using SSM5-R.
NOTE: The pfc file listings provided in this bulletin are the latest available at the time of publishing.
Updates are often released thereafter without revision to the original bulletin. For this reason, it
is critical to always have the latest version of Select Monitor software installed on your system.
Technicians can confirm if a later version is available by entering the CID listed in this bulletin into
SSM5-R. If a newer CID is shown as available in SSM5-R, reprogram using that file.
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.

Bulletin Number: 09-114-23R; Revised: 03/18/24

Page 4 of 4