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SUBARU

18-228-25

Manufacturer communications

Publication date
2025-11-20
Received by NHTSA
2025-12-01
NHTSA record numbers
11025790

Manufacturer summary

Original wording in English

This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1) are detected by the Engine Control Module (ECM).

NHTSA manufacturer communications ↗

Reported code forms

P2096P2097

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

Check vehicle applicability

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
SubaruASCENT2025
SubaruASCENT2024
SubaruASCENT2023
SubaruASCENT2022
SubaruASCENT2021
SubaruASCENT2020
SubaruASCENT2019
SubaruBRZ2024
SubaruBRZ2023
SubaruBRZ2022
SubaruCROSSTREK2025
SubaruCROSSTREK2024
SubaruCROSSTREK2023
SubaruCROSSTREK2022
SubaruCROSSTREK2021
SubaruCROSSTREK2020
SubaruCROSSTREK2019
SubaruCROSSTREK2018
SubaruCROSSTREK2017
SubaruFORESTER2025
SubaruFORESTER2024
SubaruFORESTER2023
SubaruFORESTER2022
SubaruFORESTER2021
SubaruFORESTER2020
SubaruFORESTER2019
SubaruIMPREZA2025
SubaruIMPREZA2024
SubaruIMPREZA2023
SubaruIMPREZA2022

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