TSBs

Subaru Changes Knock Sensor

Oct. 11, 2021

This bulletin applies to 2012-2017 Subaru Legacy and Outback, 2012-2016 Impreza, 2013-2017 Crosstrek, 2011-2017 Forester, 2015-2017 WRX, 2013-2017 BRZ and 2012-2014 Tribeca vehicles.

Information courtesy of Mitchell 1

Mike Mavrigian

This bulletin applies to 2012-2017 Subaru Legacy and Outback, 2012-2016 Impreza, 2013-2017 Crosstrek, 2011-2017 Forester, 2015-2017 WRX, 2013-2017 BRZ and 2012-2014 Tribeca vehicles.

Knock sensors have been redesigned that increase durability. In some cases, the check engine light may illuminate and a knock sensor-related DTC may set in PCM memory (P0327, P0328, P0332 and P0333). The new knock sensor is now utilized to improve durability and resistance to heat. The new knock sensor was incorporated into production on November 18, 2016. The new knock sensor P/N for Japan-built vehicles is 22-60AA180. The P/N for U.S.-built vehicles is 22060AA18A. The torque value for installing the knock sensor remains at 17.7 ft-lb. Do not add any anti-seize compound to the sensor retaining bolt threads.

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.