Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Subaru >> 2021 >> Outback Base >> Repair and Diagnosis >> Quick Lookups >> Technical Bulletins >> Technical Service Bulletins >> Other Variant >> Engine Control Systems >> CID Displays Incorrect Fuel Economy Value (15-323-25)

CID Displays Incorrect Fuel Economy Value (15-323-25)

WARNING: This page is about the Outback Limited XT, which is a different variant/trim than selected.
Publication date: 2025-03-27
Reference number: 15-323-25

CID DISPLAYS INCORRECT FUEL ECONOMY VALUE

CID DISPLAYS INCORRECT FUEL ECONOMY VALUE

SERVICE CAMPAIGN BULLETIN

Reference Number(s): 15-323-25R, Date of Issue:  March 27, 2025
SUBARU: 2020-24MY Legacy & Outback; 2024MY Impreza & Crosstrek; 2022-23MY WRX; 2023-24MY Ascent

APPLICABILITY

2020-24MY Legacy & Outback

2024MY Impreza & Crosstrek

2022-23MY WRX

2023-24MY Ascent

INTRODUCTION

This bulletin announces availability of new combination meter reprogramming files developed to address cases of inaccurate fuel economy displayed on the Center Information Display (CID). A customer may experience a fuel economy value of 99.9mpg or 99.9kml displayed on the CID when the driver is registered with the Driver Monitoring System (DMS). The conditions listed below MUST be fulfilled for this scenario to occur:

The new files contain enhanced combination meter logic to prevent this condition but if it is experienced, reprogram the combination meter using the service procedures outlined in this bulletin. This new logic has been incorporated into the replacement combination meters for certain models. Refer to the information outlined in this bulletin for the specified applicable service procedure.

DESCRIPTION OF FAILURE

G16999967
NOTE: When the Fuel ECO Widget is displayed, 99.9 will always be the value.

PFC FILE INFORMATION

Model File Description Old Part Number Old CID ROM ID New CID ROM ID
Legacy & Outback MET_GZ1SIA_GZ1RCB0001.pfc 85002AN30A 8000000205 8000000401
85002AN31A
85002AN32A
85002AN33A
85002AN34A
85002AN35A
Impreza & Crosstrek MET_CH2_CH2RCB0001.pfc 85132FN100 7000000301 7000000401
85132FN110
85132FN130
85132FN200
85132FN210
85132FN220
85132FN230
85132FN240
85132FN00A
85132FN01A
85132FN02A
85132FN10A
WRX MET_RH4_RH4PPB0003.pfc 85002VC700 2100000301 2100000303
85002VC710
85002VC720
85002VC730
WRX MET_RG5_RG5R CB0001.pfc 85002VC600 2000001301 6210000401
85002VC610
85002VC620
85002VC630
85002VC301
85002VC321
85002VC551
Ascent MET_TM3_TM3RCB0001.pfc 85002XC30A A000000206 A000000401
85002XC31A
85002XC32A
85002XC33A
85002AN330

SERVICE PROCEDURE/INFORMATION

Procedure for: 2020-22MY Legacy & Outback 

Replace the combination meter using the newest part applicable part available. The service procedures for Combination Meter System replacement remain unchanged. Always refer to the applicable Service Manual and review the full requirements of the repair being performed. The Service Manual procedures contain information critical to performing an effective repair the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time-use parts needed for a complete and lasting repair.

Refer to STIS: Body & Electrical/WIRING SYSTEM > INSTRUMENTATION/DRIVER INFO > Combination Meter

NOTE: Always order the most up-to-date replacement parts based on the specific VIN being repaired

Procedure for: 2023-24MY Legacy & Outback 

2024MY Impreza & Crosstrek 

2022-23MY WRX 

2023-24MY Ascent 

REMINDER:  Customer satisfaction and retention starts with performing quality repairs.

Subaru of America, Inc. (SOA) highly recommends utilizing 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 (Enhanced Flooded, Flooded, 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 DST-010 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 DST-010 to the OBD connector and proceed with initiating the normal SSM5-R reprogramming process.
  • Amperage will fluctuate based upon the vehicle's demand for power.
    NOTE: If the voltage rises beyond 14 Volts 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.
  • ALWAYS set the power supply voltage to 13.5 Volts when using Power Supply Mode. NEVER turn the ignition switch on when charging at voltages 15 Volts or higher.

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 Warranty period or covered by an active Subaru Added Security Classic and Gold plan, this repair may be submitted using the following claim information:

Procedure for: 2023-24MY Legacy & Outback 

2024MY Impreza & Crosstrek 

2022-23MY WRX 

2023-24MY Ascen 

Labor Description Labor Operation # Labor Time Fail Code
COMBINATION METER CONTROL MODULE REPROGRAMMING A849-086 0.4 TEV-48
IMPORTANT: Always note the original Calibration Identification number (CID)/ROMID the vehicle came in with on the repair order before  reprogramming and, make sure to list the NEW  CID/ROMID for any newly installed programming (as confirmed from the actual control module AFTER  installation). The NEW  CID/ROMID MUST also be noted on the repair order as this information is required for entry in the Miscellaneous Detail field during claim submission. These numbers can be read using SSM5-R.
NOTE: The pfc 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 SSM5-R. If a newer CID is shown as available in SSM5-R, reprogram using that file.

Procedure for: 2020-22MY Legacy & Outback. 

Labor Description Labor Operation # Labor Time Fail Code
COMBINATION METER REPLACEMENT & READ WRITE MILEAGE A849-186 0.6 TLK-42

IMPORTANT REMINDERS: