NHTSA ID Number: 10253953
Manufacturer Communication Number: 09-117-24
TSB/Document Date: 2024-05-02
Summary
This bulletin announces the availability of new reprogramming files developed to address cases of DTC P0890 (TCM Power Relay Sense Circuit Low) detected by the Engine Control Module (ECM).
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
© 2024 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2020-24MY Legacy & Outback 2.4L
NUMBER: 09-117-24
2019-24MY Ascent
DATE: 04/09/24
SUBJECT:
Engine Not Cranking During Low Ambient Temperatures
DTC P0890 - TCM Power Relay Sense Circuit Low
INTRODUCTION:
This bulletin announces the availability of new reprogramming files developed to address cases of
DTC P0890 (TCM Power Relay Sense Circuit Low) detected by the Engine Control Module (ECM).
When the engine is shut off after a short distance drive when the ambient temperature is 32°f (0°C)
or below, Moisture may develop inside the starter relay and cause the internal contacts to stick or
freeze. The new software allows the relay contacts to be cycled periodically to prevent any sticking or
freezing of the contact points. If this situation is reported by a customer and/or DTC P0890 is stored
in the ECM fault memory, perform the reprogramming procedure outlined below.
2020-2022 LEGACY AND OUTBACK PAK FILE APPLICABILITY:
MY
20
21
22
22
Model
LEGACY &
OUTBACK
LEGACY &
OUTBACK
LEGACY &
OUTBACK
OUTBACK
Wilderness
Specification
2.4L Turbo
2.4L Turbo
2.4L Turbo
2.4L Turbo
File Description
Old Part #
Decryption Keyword
New CID
22765AM978.pk2
22765AM970
22765AM971
22765AM972
22765AM973
22765AM974
22765AM975
22765AM976
22765AM977
68DC9050
LG7D901B00G
22765AR246.pk2
22765AR240
22765AR241
22765AR242
22765AR243
22765AR244
22765AR245
F3C7F721
LG7F601F00G
22765AR994.pk2
22765AR990
22765AR991
22765AR992
22765AR993
8990873C
LG7G501G00G
22765AR254.pk2
22765AR250
22765AR251
22765AR252
22765AR253
BF3BAD7C
LG7G501H00G
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: 09-117-24; Date: 04/09/24
Page 1 of 4
2019-2022 ASCENT PAK FILE AVAILABILITY:
MY
Model
19
ASCENT
20
ASCENT
21
ASCENT
22
ASCENT
Specification
2.4L Turbo
2.4L Turbo
2.4L Turbo
2.4L Turbo
File Description
Old Part #
Decryption
Keyword
New CID
22765AV940.pak
22765AL730
22765AL731
22765AL732
22765AL733
22765AL734
22765AL735
22765AL736
22765AL737
22765AL738
22765AL739
7E1B31E9
LT8DB01A
22765AN507.pak
22765AN500
22765AN501
22765AN502
22765AN503
22765AN504
22765AN505
22765AN506
27DD3A0F
LT8F601C00G
22765AP825.pak
22765AP820
22765AP821
22765AP822
22765AP823
22765AP824
040F5E58
LT8H601D00G
22765AS004.pak
22765AS000
22765AS001
22765AS002
22765AS003
5C146151
LT8J501F00G
2023-2024 LEGACY AND OUTBACK PFC FILE AVAILABILITY:
MY
Model
23
LEGACY &
OUTBACK
23
OUTBACK
Wilderness
24
24
Specification
File Description
Old Part #
New CID
22765AS464.pfc
22765AS460
22765AS461
22765AS462
22765AS463
LHBK301G00G
2.4L Turbo
22765AS474.pfc
22765AS470
22765AS471
22765AS472
22765AS473
LHBK301H00G
LEGACY &
OUTBACK
2.4L Turbo
22765AT832.pfc
22765AT830
22765AT831
LHBKG01G00G
OUTBACK
Wilderness
2.4L Turbo
22765AT842.pfc
22765AT840
22765AT841
LHBKG01H00G
2.4L Turbo
Continued...
Bulletin Number: 09-117-24; Date: 04/09/24
Page 2 of 4
2023-2024 ASCENT PFC FILE AVAILABILITY:
MY
Model
Specification
File Description
Old Part #
New CID
23
ASCENT
2.4L Turbo
22765AS633.pfc
22765AS630
22765AS631
22765AS632
LHBK301Y00G
24
ASCENT
2.4L Turbo
22765AU261.pfc
22765AU260
LHBP201A00G
SERVICE PROCEDURE / INFORMATION:
•
2019-22MY: Reprogram the ECM following the normal FlashWrite procedure.
•
2023-24MY: Reprogram the VDC Control Module following the normal SSM5-R procedure.
Detailed information regarding the SSM5-R reprograming procedures can be found in TSB 1428-21R.
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 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
itsbattery 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.
Continued...
Bulletin Number: 09-117-24; Date: 04/09/24
Page 3 of 4
•
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, this repair may be submitted using
the following claim information:
Labor Description
Labor Operation #
Fail Code
Labor Time
MFI OBDII ECM Reprogramming
A455-288
UPG-48
0.4
IMPORTANT: Always note the original Calibration Identification number (CID) the vehicle came in with
on the repair order before reprogramming and, make sure to list the NEW CID for any newly-installed
programming (as confirmed from the actual control module AFTER installation). The NEW CID MUST also
be noted on the repair order as this information is required for entry in the Miscellaneous Detail field during
claim submission.
NOTE: The pak 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. You can confirm if a later version
is available by entering the CID listed in this bulletin into FlashWrite. If a newer CID is shown as available in
FlashWrite, 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: 09-117-24; Date: 04/09/24
Page 4 of 4
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TSB/Document ID: 09-117-24
Replacement Service Bulletin Number:
MFR Communication Date: 2024-04-09
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
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