Check Engine Light On Problems of Toyota Tacoma - part 1

Crankshaft position sensor-truck stalled while driving almost causeing an accident. Other trucks have been recalled since 2017 but not mine. No inspection has been made I went to dealer and called Toyota headquarters and they said they could do nothing. My check engine light has been coming on and off for about 6 months and won't start sometimes ran computer diagnostics and this sensor came up.

See all problems of the 2017 Toyota Tacoma 🔎.

Secondary air injection system (sais) - one way flapper below injector valve sticks either open/closed, throws off whole sais and sets car in limp mode with corresponding check engine light code.

See all problems of the 2015 Toyota Tacoma 🔎.

Two dashboard lights illuminated at the same time: the check engine light and the trac off light. At first I really didn't notice much of a difference but after 2 days I experienced significant power loss. I would pull out into traffic ok until about 20mph then have no power. It crawled while trying to get up to speed. I read on the internet that if you disconnect the battery and open the gas cap the lights would go out and the problem would go away. I did this and it worked; or so I thought. I then left for an hour trip (I know dumb) and within 15 mins the lights came back on and I couldn't get the truck over 60mph on a major highway. I actually stopped at a rest stop and disconnected the battery and removed the gas cap. Again this shut off the lights but only for about 5 mins. Then the power loss was back. Took to my local mechanic who I trust and he said it was a known problem that was something called a technical service bulletin but not yet a recall. Apparently the tundra and sequoia are recalled for this problem but not the Tacoma. I don't get it. I was told to keep my receipts ($1,870. 68) right after christmas thank you, and hopefully one day get reimbursed if it becomes a recall. I can only hope this is a no interest investment into my future.

See all problems of the 2012 Toyota Tacoma 🔎.

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.

While on a road trip I had my check engine light come on while on the highway due to defective secondary injection valves being stuck closed/open. The codes I had for this issue is p2440 and p2442. In my case this issue made my truck go into limp mode which is often a loss of power in the engine and sometimes a restriction in one's ability to shift the truck. Luckily the highway was not busy at the time this happened, but if it were I would believe that it would be a very unsafe thing to happen going 70 mph. The parts do have an extended warranty until 2022 if I remember right, but it seems like Toyota is not interested in recalling these parts even after they have known for many years that these parts are defective. I have done quite a bit of research and found issues with these parts going back to 2013.

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.

The contact owns a 2019 Toyota Tacoma. The contact received notification of NHTSA campaign number: 20v012000 (fuel system, gasoline). The contact stated that while driving at various speeds, the check engine warning light illuminated. The brake pedal was depressed and became soft, extending the braking distance. Additionally, the fuel gauge provided inconsistent fuel level readings. The vehicle was towed to keyes Toyota (5855 van nuys blvd, van nuys, CA 91401) where it was diagnosed that the fuel tank and fuel gauges needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was taken to the dealer on 5 separate occasions due to the failure. The manufacturer was made aware of the failure, and informed the contact to take the vehicle back to the dealer however, the dealer offered no assistance. The contact referenced NHTSA campaign number: 18v888000 (service brakes, hydraulic) as a possible solution to the failure however, the VIN was not included. The failure mileage was approximately 900.

See all problems of the 2019 Toyota Tacoma 🔎.

Check engine light and trac off light came on. Truck will not exceed over 2500 rpm and/or reach a speed over 25 mph. No torque/power when gas pedal is pressed, espesicially when traveling up steep terrain. Toyota needs to issue a recall on this issue.

Secondary air injection problems (valves and/or pump) causes a check engine light to come on, and puts the engine in "limp home" mode, without warning, which limits top speed to ~40mph. This is not only ridiculous, but dangerous, especially if it happens while on a freeway. The "limp home" mode persists until the code is cleared, by using an odb tool, or clearing the ecu by other means. This has happened to me 3 times where, with no warning, the truck suddenly lost power, and I had to find the nearest "safe spot" to get out of traffic and pull over. Toyota has acknowledged this issue in a TSB, but provides no recall, despite this being a potentially dangerous situation when it happens.

At 60,000 miles check engine light and trac off lights come on when starting up truck in morning. This put the truck into limp mode. My mechanic cleared the codes but did not want to get involved in repairing as he couldn't guarantee it wouldn't happen again down the road and said Toyota will not warranty the replacement parts. Dealer advised approximately $2,000 to repair. After seeing all the other complaints from 2012 Tacoma owners, I can not believe Toyota will not cover this under a recall since they covered the exact same problem with the tundra and sequoia.

The check engine light and the trac off light came on as I was merging onto the interstate. I immediately stopped the vehicle, pulled over, and took my 2012 Toyota Tacoma with 78,000 miles to the mechanic where I left it overnight for them to look at it in the morning. Running a diagnostic they found code p2443 - secondary air injection switching valve stuck. I asked if they had dealt with this before and they said this is a common problem for Toyota and they have done recalls on both the tundra and sequoia models that have had these issues, but the Tacoma hasn't had a recall yet, even though it seems to be just as common with the same parts. They said the cost of parts and labor would be around $2,000. When I asked them if the vehicle was safe to drive off their lot they said these codes can cause the Tacoma to go into "limp mode" where you can loose power, acceleration, and won't be able to go over 45mph. I hate to think what could have happened if I had kept merging onto the interstate and tried to get up to speed only to "limp" into traffic or if this had happened a minute later on the interstate! every thread I read online from multiple sources show people having similar issues from as low as 1,000 miles on the truck. The issues with the secondary air injection pump and switching valves seems most common between 50,000-80,000 miles, but eventually does happen in the 2012-2015 tocoma models.

At less then 50k miles on the odometer and 900 miles from home my truck decided to get a check engine light and trac off light caused by codes p2440 and p2442 and p2445. Merry christmas to me. These codes put me into limp mode while on the freeway in snowy and icy conditions. I could not maintain speed with the flow of traffic as I was trying to get to the shoulder with traffic zooming all around me, dangerous and scary! Toyota wants $2000 to repair it. Internet research has shown me that it is a common problem that Toyota fails to recognize for Tacomas but has issued a TSB and extended warranties for tundras. Shame on Toyota. Now I get to endure the cost of repair after the holiday seasons and I'm sure my boss will love to hear I wont be returning to work on time.

Vehicle was in motion and check engine light came on. Car immeditely lost power. Computer codes p2440 and p2442 indicated issues that would not effect normal operation of the vehicle- just emmision control issues. 98,000 mi. On vehicle when it occurred. Vehicle would not go over 40 mph.

Check engine light and trac off light came on and next thing the car would not accelerate properly while pulling out on to a highway heading up hill I had no power. Fortunately I was not killed by the 50 plus mile per hour traffic. After making down the highway was able to get into a pep boys where they coded the secondary air system. This is a serious issue that could have killed me or someone else. I plan to contact an attorney after finding out they only cover their most expensive vehicles with they exact same system. I guess 35k on a truck wasn't enough. The part cost me $770 dollars and I'm not sure if its safe because I had to do job myself because I could not afford $2000. 00 for 2 hours work.

Secondary air pump and switching valves failed on the highway with only 62,000 miles. Truck forced into limp mode and I was not able to travel over 20mph. The truck had a check engine light and trac control light appear. Toyota attempted to charge me over $2100 to fix. After reading about the error codes this is a common problem for all 2012 Tacoma owners and Toyota warranty refuses to cover any of the cost or recall the part (the same issue on Toyota tundras was recalled).

I was leaving work and pulling onto the highway when I noticed my check engine light came on, as well as the trac off light. I went to pull into traffic and immediately realized that whatever was wrong put my truck into limp mode and had a 2500 rpm limit. This was a 60 mph highway and I couldn't go more than 35 mph. The traffic coming was immediately upon me and I had to pull over and put on my hazard lights as these vehicles had to slam on their brakes, honk, and swerve around me. I brought it into the dealership and they read code p2442. Which is for a stuck secondary air injection valve. They found water in the valves and they had to be replaced. Doing some research I found this is a very common issue in 2nd gen Tacomas, mostly the 2012. This a very well known issue, especially to Toyota, and they have so far done nothing about it. This led to a very dangerous near crash incident which I then had to pay over 1200 dollars to fix. This is completely unacceptable. Toyota must at least take ownership of their poorly designed parts and cover the replacement of these valves and pumps. This is happening all over the country on a consistent and persistent basis. Please make Toyota address this, their customers deserve so much better.

Vehicle was in motion on rainy, wet highway when check engine light went on and traction control was shut off. The secondary air injection switching valve is apparently stuck closed, which for some reason shuts off the traction control. It is my understanding from speaking with other Tacoma and tundra owners that had the valves gotten stuck open, the vehicle goes into "limp mode" which automatically decreases speed to 20mph. Obviously, either of these occurrences are particularly unsafe in rainy and wet conditions, and the decrease in speed is unsafe during any highway traveling. This is apparently a big enough issue on the tundra models for Toyota to extend the warranty to 150,000mi, yet they have done nothing for the Tacomas which have an identical system and parts.

2012 Tacoma with 24k miles. Check engine light and trc light came on with truck in limp mode when I started it to go to work. Codes p0412 p2433 p2438 p2442. Toyota wont cover this and its a defect in many many 2012 Tacomas.

Bought truck new in 2012 and maintained 100% recommended maintenance at dealer. At 64,500 mileage, check engine light came on while driving, and we drove truck straight to dealer service garage. Dealer determined secondary air injection pump had contaminated with water, resulting in rust in system (valves also). Replaced pump and valve assembly and gasket. Service advisor said the same parts were used and recalled in response to reports of air induction pump assemblies and/or air injection switching valves issues on their 2007-2010 tundra and 2008-2010 sequoia models, Toyota has decided to increase its warranty on these parts and is even offering a reimbursement if you already had this issue fixed. Tacoma's need to be included in the recall reimbursement! when we asked about how to prevent future issues, service tech informed us the part has been "re-designed" to prevent the problem from re-occurring. Total bill from dealer was $1968. 29. This vehicle has never been off road, never been in flood conditions, and is a commuter vehicle on paved roads.

While driving on a city street the check engine light and trac off light illuminated and truck would not go over 25 mph. Brought directly to mechanic that found diagnostic trouble code p2442 - secondary air injection system malfunction. At 61k miles this faulty part was not covered under any warranty. The part cost alone was $1321 and then add tax and labor for a total of $1709! so disgusted with Toyota for not taking accountability for this faulty product.

On the way home from a recent camping trip my check engine light and trac light came on in my truck. The truck went into "limp" mode would not accelerate up a hill above 20 miles per hour. We drove to the nearest auto zone, they pulled the codes p2436 and p2442. I was able to clear the codes and make it home. I started researching this and found the secondary air switching valves to be a common failure on Tacomas and tundras. I feel this part needs to be recalled and upgraded, this could be a major safety issue if the vehicle went into "limp" mode in heavy traffic or while crossing across heavy traffic. The replacement part 25710-31022 was ordered from the dealership today. I also filed a complaint with Toyota customer service.

As I read through the complaints on here, it seems most are for the same issue I have seen. As it is the biggest complaint item for 2012 Tacoma on this website, and the fact that there is a recall on tundra for the same item, and that 2013 Tacoma were redesigned to fix, this is clearly a known issue of a faulty part/design of the the air injection pump valve. It is unacceptable that nothing is done about this and the danger it poses. Like the others, I got a check engine light/trac off one evening when I started my truck. My truck started up fine, and I didn't notice a problem until I tried to merge onto a 60 mph road. I tried to accelerate and merge but I almost caused a pile up as I could not accelerate beyond 35 mph. Luckily, all I got was a bunch of honking. This is a very dangerous situation! after further research, I saw the codes p2440 and p2442 and understand it is a limp mode due to an emmisions item at startup. Before being able to fix, I had to work a shift at my second job of ski patrol in the rocky mountains. As my truck obviously couldn't make it up the canyon, I was forced to borrow another car, and all I could get was a 2 wheel drive. There was a late season storm, and because I didn't have my 4x4 truck I got stuck overnight in the mountains. I survived, but twice because of this issue I was faced into a dangerous situation. I bought a new 4x4 for the very reason to avoid dangers like these. Granted I have 65k miles now, but I don't expect a vehicle to have major problems like this. It is even worse to find out that it is a known issue and no one is doing anything about it. It is a disappointment that with a known issue Toyota has not done something about this for the Tacomas, but I am equally surprised that there are so many complaints and examples of dangerous situations and the NHTSA hasn't done anything either.

Driving home from work on the freeway when the check engine light came on, then the engine started to slow down and would not go above 35 miles/hour on the freeway. Took to dealer and was told secondary air injection switching valve stuck open (bank 1 & 2) requiring replacement.

Driving at 55 mph, check engine light came on and vehicle went into limp mode. Decrease in speed and power. Mechanic computer showed fault codes 2440 and 2442. Secondary air injection pump and valves failure. Through research hundreds of Tacoma owners are having same problem. Faulty manufacturers part causing vehicles to go into limp mode.

I left the gym yesterday and the truck had no power and would not accelerate, I almost got t-boned pulling into traffic. I looked down and the check engine light was on as well as the traction control light. Ran by autozone and had them scan the obd and it showed p2442 error code. I took it by the dealer this morning and they say both by-pass valves are gone as well as the air injection pump. Estimate was $1,798. This is a 2012 model as seems to be the norm with this failure. But with only 35k miles. I told them this was ridiculous for this to happen on this model with this low of a mileage and that this should be covered under warranty. The service rep said it wasn't and her hands were tied. I talked to the service manager as well as the gm. So far Toyota has refused to resolve this issue in a fair manner. This is a know problem by Toyota on the 2012 model Tacoma's. They are having the same issue on the tundra trucks and are covering these parts under a 150,000 mile extended warranty. There are many reports of this same failure with the Tacoma's but Toyota so far is refusing to address this issue. When this failure does occur the vehicles go into "limp" mode. This can be very dangerous if unexpectedly you loose power or speed while merging, pulling into traffic or on the freeway.

Headed to work to find check engine light illuminated. Truck has less than 41,000 miles. Went to autozone, code reader provided p2442 and p2440 errors related to the secondary air injection system valves. Followed up with local Toyota dealer. Dealer ran diagnostic and found secondary air injection system valves stuck open in banks 1 and 2. Dealer wants to replace parts 17600-0p040: pump assembly; 25710-31022: valve assembly; and the 4 related gaskets, part 17377-31010. Quote was for almost $2400. Again, the vehicle is 2012, less than 41k miles! researching the Tacoma forums online, this appears to be a common problem with this generation model and more even more so with 2012's. One of the dealer's service advisors informed me that this is also a common problem with tundras. Furthermore, while driving, the vehicle would go in and out of "limp mode" and I had no warning as to when it would or would not be in this mode, other than by the way the vehicle was handling. Limp mode would only allow transmission to shift into 2nd or 3rd and no more than 30 mph, less if climbing an incline. At other times, vehicle would drive normally. The switching in and out of this protective mode seems particularly dangerous.

Driving on the street to work one morning, the trac off and check engine lights both suddenly appeared. I then noticed that my truck was not able to accelerate past ~40 mph. Going uphill, my truck was limited to only ~20 mph. My truck went into this "safe mode. " I connected an obd device and the came up with the following two codes: p2440 and p2442. The codes refer to "secondary air injection system switching valve stuck open" for banks 1 and 2, respectively. I did some further research on the codes, and it turns out this is a common issue on 2012 Tacomas. Apparently, the valve for the secondary air injection system is stuck open due to moisture and/or carb build up. I believe this is a design/engineering issue. Part replacement costs ~$480 for each valve assembly. Labor can range anywhere between $200-$500. If this is a known issue that is common to a lot of 2012 Tacomas, then I believe Toyota should be proactive such as releasing an official recall or even implement some type of reimbursement. Note that my truck has ~80,000 miles on it. As an owner, I shouldn't suffer from an engineering design flaw and I shouldn't be financially responsible to repair/fix the issue. Any assistance would be helpful. Thank you and happy holidays!.

The check engine light and trac off lights came on. The vehicle lost power and nearly did not make it up a hill. Codes were read at a local auto parts store indicating p2440 & p2442. Took it to the Toyota dealer who confirmed the codes and indicated the secondary air injection valves were burned out and stuck open, requiring replacement. The parts were replaced at a significant cost to me. An internet search revealed that this condition is common to the 2012 Toyota Tacoma. A similar issue involving the Toyota tundra was also discovered.

Check engine light came on, trac off light is on. My truck has no power and is unsafe to drive. The dtc is p2442. Secondary air injection system switch valve stuck open bank 2. Toyota knows they have a emissions issue. My vehicle is at the dealership now.

My check engine light came on and my vehicle entered "limp mode," which keeps the car under about 35mph and prevents it from accelerating quickly. The cel read as a secondary air intake system problem (p2440 and p2442). Judging by the multitude of similar complaints I have found, this is a systemic problem that Toyota refuses to rectify for Tacomas but has already admitted to for tundras. This is a serious danger to drivers if the vehicle enters "limp mode" while they are driving through an intersection or in heavy traffic. It iseems also ridiculous for Toyota to expect Tacoma owners to spend thousands of dollars to fix their poorly designed part, especially considering the part is not vital to the performance of the engine.

I was driving on a50mph highway an check engine light comes on and truck slows to 40mph wont go any faster.

My 2012 Tacoma with 45,000 miles got a check engine light and "trac off" light when I started it to go home. I was merging onto the interstate and unable to go above 40 mph. This was obviously not safe so I exited and took it to a dealer. They cited trouble codes p2440 and p2442 and said they needed to replace secondary air injection valve (pn 25710-31022) for a total cost of $940! according to forums and the NHTSA. Gov site, this is a very common complaint with this year and model. I just bought this last July and I never expected to have to replace parts anytime soon.

My 2012 Toyota Tacoma prerunner 2wd has 54,640 miles. I just got a check engine light and "trac off" light yesterday. My truck would accelerate to just 25 mph when merging onto the interstate and top speed was around 50 mph. This is a serious safety issue and Toyota will not cover this known problem under the standard 3 year 36,000 mile warranty. Autozone ran the diagnostic scan and came up with trouble codes p2440 and p2442. These are tied to the secondary air injection system and switching valves. The Toyota dealership said this would cost me close to $2000 to repair. I paid $30,000 for this vehicle brand new just 4 years ago. This needs to become a class action lawsuit so that a safety recall is issued for Toyota to repair this known defect for free.

The contact owns a 2012 Toyota Tacoma. After the vehicle was started, the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that the secondary air injection valve needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 56,000. The VIN was not provided.

After starting Tacoma, check engine light and "trac off" light came on, went into limp mode, could only go 30mph. Tacoma just hit 34,000 miles. Dealership stated secondary air injection valve stuck closed bank 1 (code p2441). Was told pump and valves needed to be replaced at $2100, including labor. Called Toyota corporate, told it was not covered under power train or emissions warranty. This issue actually first occurred approximately 4 months ago while driving on a city street. Warning light came on and went into limp mode. Pulled into a firestone and they said it was also code p2441. They reset it and it didn't happen again until a few days ago. This time the code would not reset, warning light won't turn off and remains in limp mode.