NHTSA ID Number: 11029338
Manufacturer Communication Number: 06-95-25R
TSB/Document Date: 2026-03-03
Summary
This bulletin announces the availability of new reprogramming files developed to address cases of DTC C1C40 being detected by the Electronic Brake Booster (EBB) in addition to Failure Detail Code 30A2 stored within the Freeze Frame Data (FFD).
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TSB/Document ID: 06-95-25R
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-13
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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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
© 2025 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2025MY Forester
2023-25MY Ascent
2023-25MY Legacy & Outback
2024-25MY WRX
2024-25MY Impreza & Crosstrek
NUMBER:
06-95-25R
DATE:
05/29/25
REVISED:
02/13/26
SUBJECT: DTC C1C40 (Brake ECU) / Reprogramming File
Availability
INTRODUCTION:
This bulletin announces the availability of new reprogramming files developed to address cases of
DTC C1C40 being detected by the Electronic Brake Booster (EBB) in addition to Failure Detail
Code 30A2 stored within the Freeze Frame Data (FFD). This new software contains enhanced logic
providing a more accurate detection of DTC C1C40. If this condition is experienced on an applicable
vehicle, refer to the procedures outlined in this bulletin.
PRODUCTION CHANGE INFORMATION:
The reprogramming files have been incorporated into vehicle production as per the table below.
Applicable Vehicle
Starting VIN
Forester
SH496101
Impreza/Crosstrek
(SIA Produced)
S3700010
Impreza/Crosstrek
(Japna Produced)
S8200004
Ascent
S3401978
Legacy
S3011440
Outback
TBD
WRX
S8800634
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: 06-95-25R; Revised: 02/13/26
Page 1 of 3
PFC FILE INFROMATION:
SSM5-R reprogramming procedure
Model
MY
File description
Old Part number
Old CID
New CID
Forester
25
26400SL032_042.pfc
26400SL031
26400SL041
B320250101
B320250102
IMPREZA &
CROSSTREK
24
26400FN005_015_04D.pfc
26400FN014
26400FN04C
B220240106
B220240107
25
26400SL032_042.pfc
26400SL041
B320250101
B320250102
Legacy &
Outback
23-25
26400AN102_26400AN112
_26400AN09C_26400AN12
D.pfc
26400AN09B
26400AN12C
B120230103
B120230104
Ascent
23-24
26400XC02C.pfc
26400XC02B
B520230101
B520230102
WRX
24-25
26400VC112_122.pfc
26400VC121
B420240101
B420240102
SERVICE PROCEDURE / INFORMATION:
STEP 1: Using the Subaru Select Monitor, confirm the fault condition is applicable to this bulletin
by verifying DTC C1C40 is detected by the electronic brake booster and failure detail code 30A2 is
stored within the FFD. If the Failure Detail Code differs from code 30A2, diagnose and repair the
vehicle as per the applicable Service Manual.
STEP 2: Reprogram the Electronic Brake Booster 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.
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 GR8-1100
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).
Bulletin Number: 06-95-25R; Revised: 02/13/26
Continued...
Page 2 of 3
•
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 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 Code
BRAKE BOOSTER & REPROGRAMMING
A567-086
0.6H
QCZ-48
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: You 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: 06-95-25R; Revised: 02/13/26
Page 3 of 3
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