P2440 on Toyota vehicles
84 owner complaints filed with NHTSA about Toyota vehicles mention P2440 (AIR System Switching Valve Stuck Open Bank 1) - across 5 models. Below is where it shows up, by model and year.
Can you drive with it? Yes - though some designs respond with reduced power mode. The urgency is emissions tests and the risk of moisture spreading through the air injection system.
Symptoms, likely causes in order and realistic repair costs are on the main P2440 page - they do not differ much by brand. This page shows what is specific to Toyota: which models and years actually report it.
Toyota models reporting P2440
The number next to each year is how many NHTSA complaints for that car mention P2440. Owners rarely quote trouble codes when complaining, so real occurrence is many times higher - use these numbers to compare years, not as totals.
What Toyota owners report
“Code p2440 can dairy air injection system switching valve stuck open bank 1. Vehicle has 71,000 miles on it been informed that this is a common issue with this year make and model and the toyota should've issued a recall. Causes high rpm start and loss of power acceleration.”2007 Toyota Sequoia · Apr 2020 · 70,899 mi
“On my 2012 tacoma the code p2440 and p2442 which represent a stuck open valve in the secondary air injection system. Upon my research into this issue on forums I have learned this is a common problem with the toyota systems particularly the 2012 tacoma. The cost of the part is about 400 to 500 dollars for the valves and another 500 dollars for the secondary air injection pump. The failure will place the vehicle into a limp mode and has to be fixed in order to the truck to keep on good working condition. It seems like this error has affected many tacoma owners. *tr”2012 Toyota Tacoma · Apr 2020 · 103,000 mi
“Failure of the secondary air injection system p2440 and p2442, while the vehicle was moving onto a city street from a parking lot. When accelerating immediately there was a decrease in power and the check engine light along with the "trac off" light illuminating simultaneously. The vehicle has a now maximum speed of around 55 mph and extremely slow to accelerate being almost dangerous on busier roads. After being check out by a the dealer it was found to be the secondary air injection system which is covered by an extended warranty but parts are on back-order.”2012 Toyota Tacoma · Dec 2019 · 91,500 mi
“During normal driving, the check engine light and traction control off light came on and truck immediately went in to limp-home mode. I had it scanned for codes at the local auto parts store and it came back with p2440 and p2442 which seems like a common issue with a valve in the secondary air injection system. I quick google search showed that some 2012 tacoma owners are getting this covered under a special warranty extension, so I puttered over to the toyota dealership expecting to hear the same story, but they are telling me the ecm computer is bad. Which I am trying to get clarification on since I can't find any ecm failure issues for this make and model year.”2012 Toyota Tacoma · Apr 2019 · 144,000 mi
Counts are NHTSA owner complaints whose text mentions P2440 - owner-reported and unverified. Always confirm with a diagnosis of your specific vehicle.