DTC P1160/Extended Cranking In Cold Temperatures (11-202-21R)

WARNING: This page is about the Outback Limited XT, which is a different variant/trim than selected.

Publication date: 2021-02-08
Reference number: 11-202-21R
Supersedes refnos: 11-202-21

DTC P1160/EXTENDED CRANKING IN COLD TEMPERATURES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 11-202-21R, Date of Issue: February 08, 2021

SUBARU:

2020-21 Legacy and Outback w/2.4L DIT; 2019-21 Ascent

APPLICABILITY

2020-21MY Legacy and Outback w/2.4L DIT

2019-21MY Ascent

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⁽¹⁾

LT8H300D00G

2020MY Legacy & Outback

22765AM973.pk2

22765AM973

22765AM970, 971 & 972

66DD4879

LG7D500B00G

2021MY Legacy & Outback

22765AR241.pk2

22765AR241

22765AR240

D370D07A

LG7F300F00G

⁽¹⁾	This is the CORRECT keyword for this pack file. FlashWrite currently lists 11F48BFF which is incorrect.

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 DCA-8000 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.

NOTE:

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 (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.

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.