NHTSA ID Number: 10215400
Manufacturer Communication Number: 09-90-22R
TSB/Document Date: 2022-07-06
Summary
This bulletin announces availability of new reprograming files for 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
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© 2022 Subaru of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY: 2017-22MY Impreza
2018-22MY Crosstrek
SUBJECT:
NUMBER: 09-90-22R
DATE: 05/20/22
P0890 TCM Power Relay Sense Circuit
REVISED: 06/14/22
P05A0 Active Grille Air Shutter “A” Stuck on
Low DTC P015A & P015B / Delayed O2 Sensor Response
INTRODUCTION:
This bulletin announces availability of new reprograming files for the Engine Control Module
(ECM). These files have been developed to address concerns of the starter motor not operating
and/or illumination of the engine warning lamp. This concern may occur under any of the four
driving scenarios outlined below. It is IMPORTANT to fully review the details below to
accurately confirm the concern and perform the reprogramming procedure when necessary.
PRODUCTION CHANGE INFORMATION:
This new logic was incorporated into vehicle production as per the the table below.
Model
Starting VIN
Impreza (4 Door)
N3607758
Impreza (5 Door)
N1722257
Crosstrek
N9249886
DESCRIPTIONS OF CONCERN:
Scenario A:
While attempting a restart after a short drive cycle in low ambient temperatures (less than 0 Degrees Celsius / 32 Degrees Fahrenheit), the starter motor may not operate. DTC P0890 (TCM
Power Relay Sense Circuit Low) will likely be stored in the ECM under this condition. Condensed
moisture in the ignition relay can cause the contact points to freeze under these conditions. The
new logic enhances the relay self-shutdown program, eliminating the possibility of frozen relay
contacts.
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: 09-90-22R; Revised: 06/14/22
Page 1 of 8
Scenario B:
DTC P05A0 (Active Grille Air Shutter “A” Stuck On) may be stored in the ECM when the vehicle is driven in low ambient temperatures (less than 0 Degrees Celsius / 32 Degrees Fahrenheit)
and/or harsh weather including snow and freezing rain. This is caused by an inaccurate freezing
estimation of the Active Grille Shutter (AGS) by the ECM. The new logic optimizes the freezing
estimation program within the ECM.
Scenario C:
P015A (A/F /02 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1) & P015B (A/F /02
Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1) may set when stabbing acceleration
(ON then quickly OFF the accelerator) and similar braking are performed repeatedly such as in
stop and go driving while the engine is warming up.
Scenario D:
A hesitation and/or lack or power may be felt while operating the vehicle with an engine speed
of 1500-3500rpm.
NOTE: Reprogram the ECM ONLY after confirming any of the scenarios as described above are
present.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
• Reprogram the ECM following the normal FlashWrite procedure.
• See the information below for pak file applicability.
Subaru of America, Inc. (SOA) highly recommends connecting 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 (Flooded, EFB, 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 SDI 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.
Continued...
Bulletin Number: 09-90-22R; Revised: 06/14/22
Page 2 of 8
•
Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-i or SDI to the OBD
connector and proceed with initiating the normal FlashWrite reprogramming process.
•
Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage
rises beyond 14V 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.
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.
VERY IMPORTANT:
This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging
System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY. It does not apply
to any other brand / type of “generic” battery charger whatsoever. ONLY the DCA-8000 and the
GR8- 1100 and their Power Supply Mode feature have been tested and approved by SOA.
Continued...
Bulletin Number: 09-90-22R; Revised: 06/14/22
Page 3 of 8
PAK FILE APPLICABILITY:
MY
Model
Specification
Old CID #
File Name
Decryption
Keyword
22765AU28A.pak
BD9CAD75
22765AU29A.pak
FE01CFEB
XH3J2G0D
22765AU30A.pak
C3C6AC44
XH3J2G0A
22765AU31A.pak
182F9B0B
XH3J2G0B
New CID #
22765AJ59A
22765AJ59B
22765AJ59C
22765AJ59D
2.0L NA,
5MT AGS
22765AJ59E
22765AJ59F
XH3J2G0C
22765AJ59G
22765AJ59H
22765AJ59J
22765AJ59K
22765AJ60A
22765AJ60B
22765AJ60C
22765AJ60D
2.0L NA,
CVT AGS
22765AJ60E
22765AJ60F
22765AJ60G
22765AJ60H
22765AJ60I
22765AJ60J
2017
22765AJ60K
Impreza
22765AJ61A
22765AJ61B
22765AJ61C
22765AJ61D
2.0L NA,
5MT
22765AJ61E
22765AJ61F
22765AJ61G
22765AJ61H
22765AJ61J
22765AJ61K
22765AL71A
22765AL71B
22765AL71C
22765AL71D
2.0L NA,
CVT
22765AL71E
22765AL71F
22765AL71G
22765AL71H
22765AL71J
22765AL71K
Continued...
Bulletin Number: 09-90-22R; Revised: 06/14/22
Page 4 of 8
MY
Model
Specification
Old CID #
File Name
Decryption
Keyword
New CID #
22765AM28J.pak
B8D823C7
XH3JD00D
22765AJ618.pak
F9F53E35
XH3J2G0E
22765AJ628.pak
B9308D26
XH3J2G0F
22765AM28A
22765AM28B
22765AM28C
Impreza
2.5L NA,
CVT AGS
22765AM28D
22765AM28E
22765AM28F
22765AM28G
22765AM28H
22765AJ610
22765AJ611
22765AJ612
2.0L NA,
6MT
2018
22765AJ613
22765AJ614
22765AJ615
22765AJ616
22765AJ617
Crosstrek
22765AJ620
22765AJ621
22765AJ622
2.0L NA,
CVT
22765AJ623
22765AJ624
22765AJ625
22765AJ626
22765AJ627
Continued...
- 3X Stronger than the leading full synthetic*
- 10X Better high stress performance**
- 20,000 miles between oil changes***
- Viscosity breakdown as measured in Kurt Orbahn test on 5W...
- As measured in Seq IX test under high load/torque conditions...
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TSB/Document ID: 09-90-22R
Replacement Service Bulletin Number:
MFR Communication Date: 2022-06-14
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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