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Engine Control Module (ECM) Reprogramming (WQC-39)

Publication date: 2012-10-01
Reference number: WQC-39

ENGINE CONTROL MODULE (ECM) REPROGRAMMING

ENGINE CONTROL MODULE (ECM) REPROGRAMMING

SERVICE CAMPAIGN BULLETIN

Reference Number(s): WQC-39, Date of Issue:  October 01, 2012
SUBARU: 2011-12 MY All Models; 2013 BRZ
NOTE: This Campaign only applies to vehicles with motor vehicle registration in the States of California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont and Washington.

INTRODUCTION

Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming.

A modification to the Engine Control Module software has been developed to correct a deficiency in the OBDII system thermostat monitoring logic. This software change will not adversely affect fuel economy or performance.

AFFECTED VEHICLES

Affected vehicles are identified in the VIN range chart below. NOTE: Not all vehicles in the VIN ranges are affected. Prior to performing repairs, confirm coverage by using the Vehicle Coverage Inquiry function at Subarunet.com. 

Model From To
2011MY Legacy B(1)254075 B(1)265232
Outback B(1)421503 B(1)448291
Impreza Sedan 2.5L NA B(1)520687 B(1)523841
Impreza Sedan WRX/STI B(1)519623 B(1)525817
Impreza Wagon 2.5L NA B(1)827370 B(1)832332
Impreza Wagon WRX/STI B(1)827450 B(1)833719
Forester B(1)761277 B(1)783898
Tribeca B(1)402958 B(1)403686
(1) Various Characters may occupy this position
Model From To
2012MY Legacy C(1)002017 C(1)043557
Outback C(1)200013 C(1)303706
Impreza Sedan 2.0L NA C(1)002001 C(1)031254
Impreza Sedan WRX/STI C(1)002099 C(1)031281
Impreza Wagon 2.0L NA C(1)200001 C(1)247535
Impreza Wagon WRX/STI C(1)200094 C(1)246471
Forester C(1)400002 C(1)470750
Tribeca C(1)400035 C(1)402639
2013MY BRZ D(1)600002 D(1)603013
(1) Various Characters may occupy this position

OWNER NOTIFICATION

SOA will prepare and mail Owner Notification Letters to owners of affected vehicles according to the following schedule:

Model Year Vehicle Engine Date
2011 Legacy & Outback 2.5L NA 10/29/12
2.5L Turbo 12/17/12
3.6L NA 10/29/12
Tribeca 3.6L NA 12/17/12
Impreza 2.5L NA 12/17/12
Impreza WRX 2.5L Turbo 12/17/12
Impreza STI 2.5L Turbo 12/17/12
Forester 2.5L NA 12/17/12
2.5L Turbo 12/17/12
2012 Legacy & Outback 2.5L NA 11/19/12
2.5L Turbo 12/17/12
3.6L NA 12/17/12
Tribeca 3.6L NA 12/17/12
Impreza 2.0L NA 10/29/12
Impreza WRX 2.5L Turbo 12/17/12
Impreza STI 2.5L Turbo 12/17/12
Forester 2.5L NA 12/17/12
2.5L Turbo 12/17/12
2013 BRZ 2.0L NA TBD

A copy of the owner notification letter is included at the end of this bulletin.

DEALER PROGRAM RESPONSIBILITY

Dealers are to promptly perform the applicable service procedures defined in this bulletin to correct all affected vehicles in their inventory (new, used, demo). Additionally, whenever a vehicle subject to this Service Program is taken into dealer new or used inventory, or is in the dealership for service, necessary steps should be taken to ensure the Service Program correction has been made before selling or releasing the vehicle.

New or used vehicles listed in a Service Program that are in dealer stock must be:

PARTS INFORMATION

No repair parts are needed to perform this procedure. 

SPECIAL TOOLS

Vehicle ECM reprogramming will require the following:

Subaru Diagnostic System (SDS) 

SERVICE PROCEDURE

This service procedure will involve reprogramming the ECM with an updated PAK file to correct the deficiency in the OBDII system thermostat monitoring logic.

ECM REPROGRAMMING INSTRUCTIONS

  1. Verify the status of the "CHECK ENGINE" malfunction indicator light (MIL) located on the vehicle's instrument cluster.
  2. If no malfunction is indicated, reprogram the ECM.
  3. If a malfunction is indicated by the MIL remaining continually "on" or "flashing", diagnose the cause and perform any necessary repairs. Once repairs have been completed, clear all codes and reprogram the ECM.
    NOTE: In the event the cause of the check engine light illumination is not covered by applicable warranties, the cost of repairs is the vehicle owner's responsibility. Under no circumstances should the ECM be reprogrammed until corrections have been made.

Confirm your SSM III contains the applicable SSMIII Flashwrite File Update which includes the following reprogramming PAK files.

VERSION NUMBERS

  • Software: 1.35.49.7 or higher
  • Interface Box: 1.7.6 or higher
  • Interface Box CF Card: 1.7.0 or higher

The following chart indicates the applicable PAK files and date available. 

Model Year Vehicle Engine Transmission New ECM/Pack File Part Number Date Available
2011 Legacy & Outback 2.5L NA CA Spec. PZEV CVT 22765AC93E.pak 10/19/12
6MT 22765AC92D.pak 10/19/12
2.5L Turbo CA/FED Spec. 6MT 22765AC96C.pak 11/30/12
3.6L NA CA Spec. 5AT 22765AC97C.pak 10/19/12
Tribeca 3.6L NA CA/FED Spec. 5AT 22765AB32D.pak 10/19/12
Impreza 2.5L NA CA/FED Spec. 4AT 22765AD012.pak 11/30/12
5MT 22765AD002.pak 11/30/12
Impreza WRX 2.5L Turbo CA/FED Spec. 5MT 22765AD023.pak 11/30/12
Impreza STI 2.5L Turbo CA/FED Spec. 6MT 22765AD033.pak 11/30/12
Forester 2.5L NA CA Spec. 4AT 22765AB406.pak 11/30/12
5MT 22765AB416.pak 11/30/12
2.5L Turbo CA/FED Spec. 4AT 22765AB284.pak 11/30/12
2012 Legacy & Outback 2.5L NA CA Spec. PZEV CVT 22765AC66C.pak 10/19/12
6MT 22765AC65D.pak 10/19/12
2.5L Turbo CA/FED Spec 6MT 22765AD30B.pak 11/30/12
3.6L NA CA Spec. 5AT 22765AC68C.pak 11/30/12
Tribeca 3.6L NA CA/FED Spec. 5AT 22765AD47C.pak 11/30/12
Impreza 2.0L NA CA Spec. CVT 22765AC423.pak 10/19/12
5MT 22765AC403.pak 10/19/12
Impreza WRX 2.5L Turbo CA/FED Spec. 5MT 22765AC733.pak 11/30/12
Impreza STI 2.5L Turbo CA/FED Spec. 6MT 22765AC743.pak 11/30/12
Forester 2.5L NA CA Spec. 4AT 22765AD393.pak 11/30/12
5MT 22765AD403.pak 11/30/12
2.5L Turbo CA/FED Spec. 4AT 22765AD442.pak 11/30/12
2013 BRZ 2.0L NA CA/FED Spec. 6AT TBD TBD
6MT TBD TBD

STATE EMISSION TESTING ADVISORY

After ECM reprogramming, the OBD system's readiness code monitors will set to "incomplete". Normally, the vehicle needs to be driven under a variety of conditions before the readiness code monitors will indicate "complete". (See State I/M Program Advisory Bulletin number 11-120-12 , dated date 9-20-2012 for details.)

SERVICE PROGRAM IDENTIFICATION LABEL

Type or print the necessary information on a Service Program identification label. The completed label should be attached to the vehicle's upper radiator support.

Additional labels are available through the Subaru Claims Helpline at 1-866-782-2782.

G08474563

CALIFORNIA "VEHICLE EMISSION RECALL - PROOF OF CORRECTION" CERTIFICATE

The California Air Resources Board and the Department of Motor Vehicles Registration/Recall Program requires that all emission related Recall/Campaign or Service Program repairs be completed before a vehicle registration is renewed. Please provide owners of vehicles registered in the state of California a completed "Vehicle Emission Recall - Proof of Correction" certificate. Vehicle owners should be advised to retain this certificate because the California Department of Motor Vehicles may require they provide proof this service program repair has been completed.

Additional certificates are available through the Subaru Claims Helpline at 1-866-782-2782.

G08474564

CLAIM REIMBURSEMENT AND ENTRY PROCEDURES

Credit to perform this service program will be based on the submission of properly completed repair order information. Dealers may submit claims through Vehicle Claim Entry on Subarunet.com.

CLAIM TYPE & CAMPAIGN CODE LABOR LABOR OPERATION
RC WQC-39 145-583 0.4 hrs. Reprogram ECM.

OWNER NOTIFICATION LETTER

Subaru of America, Inc.

Subaru Plaza

P.O. Box 6000

Cherry Hill, NJ 08034-6000

www.subaru.com

Service Program WQC-39 

Engine Control Module Reprogramming 

Vehicles Registered in the States of 

CA, CT, MA, MD, ME, NJ, NY, OR, PA, RI, VT, WA 

October 2012

Dear Subaru Owner:

We would like to thank you for your selection of a Subaru vehicle. At Subaru, we take pride in our products and are committed to your continued satisfaction.

Subaru has developed a modification to the Engine Control Module software logic to improve the monitoring parameters within the On-Board Diagnostic (OBDII) system for the engine coolant thermostat. This correction ensures that should there be an abnormal condition (i.e., the engine coolant does not reach or maintain the proper operating temperature), the "check engine light" will illuminate. The proper illumination of the "check engine light" is needed to alert you that corrective action may be required.

This software change has no effect on fuel economy or vehicle performance.

WHAT WE ARE ASKING YOU TO DO PROMPTLY 

We ask that you schedule an appointment with your Subaru Dealer as soon as possible to have your vehicle's Engine Control Module software reprogrammed. This will take approximately 30 minutes to complete. However, it may be necessary for you to leave your car longer on the day of your appointment to allow your dealer flexibility in scheduling. Your Subaru dealer will perform this modification at no cost to you.

Please present this letter to your Subaru Dealer on the day of your service appointment.

CALIFORNIA REGISTERED OWNERS 

The California Air Resources Board requires that emission related campaigns be completed prior to California's vehicle registration renewal process; without this repair, you will not be able to register your vehicle during your next annual registration. Upon completion of this campaign, your California dealer will complete and provide you a "Proof of Correction Certificate." If required, present the certificate to the California Department of Motor Vehicles (the "DMV") when renewing your California registration as proof of campaign completion. If the DMV does not request the certificate, we recommend that you keep it for your records.

In addition, the State of California requires that every vehicle must pass an emission test (SMOG Check) every two years and before it is sold. Without the service we are providing at no charge, your vehicle may not pass this test.

CHANGED YOUR ADDRESS OR SOLD YOUR SUBARU? 

If you have changed your address, or if you have sold your Subaru, please complete the enclosed prepaid postcard and mail it to us.

IF YOU NEED FURTHER ASSISTANCE 

To locate the nearest Subaru Dealer you can access our website at www.subaru.com and select "Find a Dealer".

For additional information and the most Frequently Asked Questions, please go to:

If you need additional assistance, please contact us directly:

Please contact us immediately if the dealer fails or is unable to make the necessary repairs free of charge.

Your continued satisfaction with Subaru is important to us. This update is intended to ensure your vehicle's optimal performance. We appreciate your understanding in this matter and regret any inconvenience this may cause you.

Sincerely,

Subaru of America, Inc.

Notice to Lessors 

Under Federal law the lessor of a vehicle who receives this letter must provide a copy of it to the vehicle lessee(s) within 10 business days from receipt. The lessor must also keep a record of the lessee(s) to whom this letter is sent, the date sent, and the applicable vehicle identification number (VIN). (For the purposes of this section, a lessor means a person or entity that in the last twelve months prior to the date of this notification has been the owner, as referenced on the vehicle's title, of any five or more leased vehicles. A leased vehicle is a vehicle leased to another person for a term of at least four months.) 

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