TSB: Enhanced O2 for Subaru

This bulletin details the availability of new oxygen sensors for various Subaru models from 2017 to 2024, designed to address specific diagnostic trouble codes and enhance vehicle reliability.

Enhanced O2 for Subaru

This bulletin announces availability of new oxygen sensors for 2020-2-24 Subaru Legacy and Outback 2.5L, 2017-2024 Impreza and Crosstrek, 2019-2023 Forester and 2022-2023 BRZ vehicles. The new oxygen sensors address the following DTCs detected in the ECM:

P0137 (O2 sensor circuit low voltage bank 1 sensor 2)

P0138 (O2 sensor circuit high voltage bank 1 sensor 2)

P0140 (O2 sensor circuit no activity detected bank 1 sensor 2)

P0141 (O2 sensor heater circuit bank 1 sensor 2)



The new O2 sensors have an optimized coating to help prevent cracking within the internal surfaces, reducing any possibility of short/open circuits.

SUBARU P/N NEW DENSO P/N OLD DENSO P/N

22690ab070.........................150200-9002......................150200-9001

22690AB08A........................ 150200-9011......................150200-9010

22690AB130........................ 150200-9032...................... 150200-9031

Sign up for our eNewsletters
Get the latest news and updates

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!