Check on Toyota Air Switching Valve

    March 6, 2023
    Some 2014-2015 Toyota Tundra trucks equipped with a 3UR engine may exhibit a MIL on with DTC P2440 (secondary air injection system switching valve stuck open bank 1) and/or P2442 (secondary air injection system switching valve stuck open bank 2).
    Photo Credit: Toyota
    The ECM logic has been changed to reduce the possibility of this concern. Reprogram the ECM with the latest calibration.
    The ECM logic has been changed to reduce the possibility of this concern. Reprogram the ECM with the latest calibration.

    Some 2014-2015 Toyota Tundra trucks equipped with a 3UR engine may exhibit a MIL on with DTC P2440 (secondary air injection system switching valve stuck open bank 1) and/or P2442 (secondary air injection system switching valve stuck open bank 2). The 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.

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    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.

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