# P2440 on the 2014 Toyota Tundra

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P2440

- [10134361](https://open.wenmarpro.com/bulletins/10134361), 2018-04-23: TSB: Some 2014 ? 2016 model year Tundra \(1UR\-FE\) vehicles may exhibit a MIL ?ON? condition with Diagnostic Trouble Code \(DTC\) P2440 \(Secondary Air Injection System Switching Valve Stuck Open, Bank 1\), or P2442 \(Secondary Air Injection System Switching Valve Stuck Open, Bank 2\), and under some conditions may enter limp mode \(limited throttle input \~ 25mph\). This condition can be triggered by sub\-freezing ambient temperatures. Follow the Repair Procedure below to address this condition.
- [10109360](https://open.wenmarpro.com/bulletins/10109360), 2017-08-01: TSB: Some 2014 \- 2015 model year Sequoia and Tundra vehicles equipped with 3UR engines may exhibit a MIL "ON" condition with the following Diagnostic Trouble Codes \(DTCs\): ? P2440: Secondary Air Injection System Switching Valve Stuck Open Bank 1 ? P2442: Secondary Air Injection System Switching Valve Stuck Open Bank 2 This condition may be caused by debris/ice in the air switching valve assembly. The Engine Control Module/ECM \(SAE term: Powertrain Control Module/PCM\) logic has been changed to reduce the possibility of this condition occurring.
- [10087867](https://open.wenmarpro.com/bulletins/10087867), 2017-01-05: TSB: SOME 2014 – 2016 MODEL YEAR TUNDRA \(1UR\-FE\) VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P2440 \(SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 1\), OR P2442 \(SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 2\), AND UNDER SOME CONDITIONS MAY ENTER LIMP MODE \(LIMITED THROTTLE INPUT \~ 25MPH\). THIS CONDITION CAN BE TRIGGERED BY SUB\-FREEZING AMBIENT TEMPERATURES. FOLLOW THE REPAIR PROCEDURE BELOW TO ADDRESS THIS CONDITION.
- [10086600](https://open.wenmarpro.com/bulletins/10086600), 2016-12-19: TSB: SOME 2014 – 2016 MODEL YEAR TUNDRA \(1UR\-FE\) VEHICLES MAY EXHIBIT A MIL “ON” CONDITION WITH DIAGNOSTIC TROUBLE CODE \(DTC\) P2440 \(SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 1\), OR P2442 \(SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 2\), AND UNDER SOME CONDITIONS MAY ENTER LIMP MODE \(LIMITED THROTTLE INPUT \~ 25MPH\). THIS CONDITION CAN BE TRIGGERED BY SUB\-FREEZING AMBIENT TEMPERATURES. FOLLOW THE REPAIR PROCEDURE BELOW TO ADDRESS THIS CONDITION.