16-98-16

ATTENTION:
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IMPORTANT - All
Service Personnel
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Initial in the boxes
provided, right.
SERVICE MANAGER
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SERVICE BULLETIN
APPLICABILITY: 2015-2016MY WRX Models
NUMBER: 16-98-16
SUBJECT:	TCM Reprogramming File Availability to Address
Inconsistent Shifting / Slipping Concerns When Cold
DATE: 02/05/16
INTRODUCTION
This bulletin announces availability of reprogramming files for optimization of the transmission
control module (TCM). The new logic addresses customer concerns of inconsistent shifting
characteristics and / or a “slipping” -type sensation which may be experienced under moderate
acceleration after a cold start before the CVT is up to operating temperature.
PRODUCTION CHANGE INFORMATION:
The new TCM logic was incorporated into production starting with VIN G*825251.
PACK FILE APPLICABILITY
MODEL
MODEL YEAR
PAK FILE NAME
NEW TCM PART
NUMBER
OLD TCM PART
NUMBERS
DECRYPTION
KEYWORD
NEW CID
NUMBER
WRX 2.0L
DIT
2015
30919AD792.pak
30919AD792
30919AD790,
791
97ABDBFA
L9FDD081
2016
30919AE551.pak
30919AE551
30919AE550
11D4093E
K1FDD080
SERVICE PROCEDURE / INFORMATION
Step 1:
Reprogram the TCM using the SSMIV following the normal FlashWrite procedure.
NOTES:
SOA now highly recommends connecting the Midtronics GR8 Diagnostic Battery Charger to the vehicle
and utilizing the Power Supply Mode feature anytime a vehicle control module is being reprogrammed.
Once the GR8 is connected to the vehicle, as long as the battery is fully charged, it takes less than 3
minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized
and ready for reprogramming.
VERY IMPORTANT: This information is applicable to the Midtronics GR8 Diagnostic Battery Charger
ONLY. It does not apply to any other brand / type of “generic” battery charger whatsoever. ONLY
the GR8 and its Power Supply Mode feature has been tested and approved by Subaru of America, Inc.
(SOA).
Continued...
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.
Bulletin Number: 16-98-16; Date 02/05/16
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.
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•
If the GR8 indicates the vehicle’s battery must be charged, charge the battery using the GR8
before proceeding to reprogram the vehicle while using the Power Supply Mode.
•
Control module failures as a result of 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.
Step 2:
Using the SSMIV, clear the AT Learning Data using the following procedure:
•
Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear
AT Learning Data.
•
Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again.
•
Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point,
the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning
procedure has completed successfully. If the AT Temp light does not flash as described, repeat
Step 2 again from the beginning.
Step 3:
Using the SSMIV, perform the AT Learning Control following the procedure outlined in the applicable
Service Manual.
WARRANTY / CLAIM INFORMATION
For vehicles within the Basic New Car Limited or Powertrain Warranty period or covered by a
Subaru Added Security Powertrain, Classic or Gold plan, this repair may be submitted using the
following claim information:
LABOR DESCRIPTION
LABOR
OPERATION #
FAIL
CODE
LABOR
TIME
TCM Reprogramming, Clear AT Learning
and Perform Learning Control
A860-732
MJZ-48
0.7
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: 16-98-16; Date 02/05/16
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