TSBs

Toyota Tundra Air Valve Gets Stuck

April 1, 2022

Sub-freezing temperatures can prompt some 2014-2016 Toyota Tundra vehicles to exhibit a MIL on condition with DTC P2440.

Information courtesy of Mitchell 1

Mike Mavrigian

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Some 2014-2016 Toyota Tundra vehicles may exhibit a MIL on condition with DTC P2440 (secondary air injection system switching valve stuck open Bank 1), or P2442 (secondary air injection system switching valve stuck open Bank 2). Under some conditions the engine may enter limp mode. This condition can be triggered by sub-freezing ambient temperatures. Flash reprogram the ECM.

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.