11-202-21R

ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
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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© 2021 Subaru of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2020-21MY Legacy and Outback w/ 2.4L DIT
		
2019-21MY Ascent
NUMBER:
DATE:
SUBJECT: DTC P1160 / Extended Cranking in Cold 		
		Temperatures
11-202-21R
02/04/21
REVISED: 02/08/21
INTRODUCTION:
This bulletin announces availability of reprogramming files for the ECM. These new files will
address DTC P1160 and customer concerns of extended cranking in cold temperatures. In rare cases,
if the engine is switched off in extremely cold weather, the throttle plate may not return to the proper
position. If this occurs, the next time the engine is started, the ECM detects the throttle plate as out
of position and interprets the value as a failure resulting in the extended crank condition and DTC
P1160. The throttle position sensing control has been optimized to avoid extended cranking and the
DTC.
PRODUCTION CHANGE INFORMATION:
This bulletin will be revised with the starting VINs for the logic change when they become available.
PACK FILE APPLICABILITY:
Model
PAK File Name
New ECM Part
Number
Old ECM Part
Numbers
Decryption
Keyword
New ECM CID
Number
2019MY Ascent
22765AL736.pak
22765AL736
22765AL730, 31,
32, 33, 34 & 35
AE1145FB
LT8D800A
2020MY Ascent
22765AN503.pak
22765AN503
22765AN500, 501
& 502
FFF292A3
LT8F300C00G
2021MY Ascent
22765AP821.pak
22765AP821
22765AP820
FC2F4F47**
LT8H300D00G
2020MY Legacy &
Outback
22765AM973.pk2
22765AM973
22765AM970, 971
& 972
66DD4879
LG7D500B00G
2021MY Legacy &
Outback
22765AR241.pk2
22765AR241
22765AR240
D370D07A
LG7F300F00G
**This is the CORRECT keyword for this pack file. FlashWrite currently lists 11F48BFF which is
incorrect.
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: 11-202-21R; Revised: 02/05/21
Page 1 of 3
SERVICE PROCEDURE:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
•
Reprogram the ECM following the normal FlashWrite procedure.
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.
•
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.
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: 11-202-21R; Revised: 02/05/21
Page 2 of 3
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, an applicable Emission Warranty period or covered
by an active Subaru Added Security Classic or Gold plan, 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: 11-202-21R; Revised: 02/05/21
Page 3 of 3