What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P2440Secondary Air Injection System Switching Valve Stuck Open Bank 1 •P2440Secondary Air Injection System Switching Valve Stuck Open, Bank 1P2440SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN, BANK 1Manufacturer communications
7Original wording in English
TOYOTA
Reported code forms P2440
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…
TOYOTA
Reported code forms P2440
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…
TOYOTA
Reported code forms P2440
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…
TOYOTA
Reported code forms P2440
TSB: Some 2012 - 2013 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…
TOYOTA
Reported code forms P2440
Some 2005 ? 2009 model year 4Runner, 2006 ? 2007 model year Land Cruiser, 2005 ? 2007 model year Sequoia, and 2005 ? 2006 model year Tundra vehicles equipped with the 2UZ-FE (4.7 L) engine may exhibit a MIL ?ON?…
TOYOTA
Reported code forms P2440
Some 2012 ? 2013 model year Sequoia and Tundra vehicles with the 3UR-FE/FBE (5.7 L) engine may exhibit a MIL ?ON? condition with Diagnostic Trouble Code (DTC) P2440/P2442 (Secondary Air Injection System Switching Valve…
Check vehicle applicability
7A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.