02-170-17

ATTENTION:
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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
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SERVICE MANAGER
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SERVICE BULLETIN
APPLICABILITY:
SUBJECT:
NUMBER: 02-170-17
All Models with FA or FB Engines
DATE: 9/11/17
Oil Leaking from AVCS Oil Control Valve
INTRODUCTION:
This bulletin announces part information for new Active Valve Control System (AVCS) oil control
solenoid valves (OCV) which contain a redesigned internal oil seal. The new seal will eliminate
potential oil seepage into the wire harness connector portion of the valve. If oil seeps into the
connector, over time, the Check Engine lamp may illuminate and set various AVCS-related DTCs.
PRODUCTION CHANGE INFORMATION:
The new OCVs were incorporated into production starting with the following VINs. This table will
be updated when VIN information for the “TBD” models becomes available.
Vehicle / Model
Legacy / Outback
Impreza / Crosstrek
Forester
WRX
BRZ
Starting VIN
TBD
TBD
JH425420
J9807386
H9604945
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: 02-170-17; Date 9/11/17
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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PART INFORMATION:
Description
VALVE ASSEMBLY-OIL
CONTROL
NEW Part Number
10921AA231
10921AA241
10921AA23B
OLD Part Number
10921AA230
10921AA240
10921AA23A
New OCVs can be identified by their production lot number located on the face of the solenoid as
shown in the illustration below.
SERVICE PROCEDURE / INFORMATION:
If oil is found in the harness connector during diagnosis of AVCS-related DTCs, replace the affected
OCV with a new part as listed in the parts information supplied above. Follow the service procedures
as outlined in the applicable Service Manual.
There have been a small number of reports involving engine oil “wicking” past the OCV engine
harness connector and into the related wiring harnesses and connectors as shown in the photos below.
Oil Seepage
If related engine wiring harnesses and / or connectors are contaminated, the harness itself may also
need to be replaced if degreasing affected components using a spray parts cleaner is unsuccessful.
Continued...
Bulletin Number: 02-170-17; Date 9/11/17
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WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited or Powertrain Limited Warranty period or covered
by an active Subaru Added Security Powertrain, Classic or Gold plan, please consult the Labor Time
Guide for applicable claim coding information.
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: 02-170-17; Date 9/11/17
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