TSBs

Look for Debris in Toyota Air Switching Valve

Oct. 31, 2022

Some 2012-2013 Toyota Sequoia and Tundra vehicles equipped with 3UR engines may exhibit a MIL on with DTC P2440 (secondary air injection system switching valve stuck on, Bank 1), or P2442 (secondary air injection system switching valve stuck open Bank 2).

Information courtesy of Mitchell 1

Mike Mavrigian

This condition may be caused by debris/ice in the air switching valve assembly. The ECM logic has been changed to reduce the possibility of this concern. Reprogram the ECM with the latest calibration.

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.