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What Does the Check Engine Light Mean?

One of the most usually misunderstood lights or indicators in your 2020 Toyota Corolla is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few different ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light lights up in either an amber or red color and is part of the diagnostics system found on your automobile. Onboard computers increasingly have controlled and monitored automobile performance since the 80s and do a collection of things for your 2020 Toyota Corolla. Some of these include shifting automatic transmissions controlling engine speed, ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of contrasting things. It can be as plain as your gas cap being loose or as rigorous as engine knocking. If your check engine light is on in your 2020 Toyota Corolla, contact Nalley Toyota Union City. Our Toyota service department can help you find out what code is turning your check engine light on or diagnose why your check engine light is flashing. Contact Nalley Toyota Union City today!

2020 Toyota Corolla Check Engine Light Flashing

Although there are bountiful likely causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several classic causes including something as classic as a loose gas cap. Other classic reasons for a Check Engine Light are damaged oxygen sensor, faulty head gasket, a malfunction with the fuel injection system, faulty emissions control part, dirty mass airflow sensor, or defective spark plugs to name a few. No matter what is the root cause of the Check Engine Light, we have the Toyota Certified Technicians and the certified service protocol to isolate the root problem and repair it as mandatory to restore factory specifications. When this happens, the Check Engine Light turns off, and you can leave the service center knowing that your Toyota issue was fixed.

Every 2020 Toyota Corolla was designed with a high-technology performance monitoring system with a computer, and a series of sensors positioned strategically throughout the vehicle on its exciting systems. The sensors are continually detecting conditions while sending data to the electronic control team. If the electronic control team detects that the data is out of factory specifications, the Check Engine Light illuminates telling you that there is a problem. However, that is the limitation of the Check Engine Light – it won’t tell you what specifically is wrong nor what to do about it. That’s where we come in; Nalley Toyota Union City provides a Check Engine Light Diagnosis Service that isolates the core problem and gives you a recommendation on what to do next from a Extraordinarily Qualified Service persuasive.

Check Engine Light Service 2020 Toyota Corolla

What do you do when you’re driving along in your Toyota Corolla and abruptly, a yellow light lights up on your dash and says "Check Engine". If you’re like most Toyota owners, your heart sinks a little because you have little idea about what that light is trying to tell you or how you should react. The fear of the unknown (or the cost of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t mean you have to pull the car over to the side of the road and call a tow truck, but it is recommended that you get your 2020 Toyota Corolla checked as soon as possible. Ignoring that warning could end up causing generous damage to expensive engine elements.

When your 2020 Toyota Corolla's ECM (electronic control module), which is the vehicle's onboard computer, finds a problem in the electronic control system that it can’t noble, a computer turns on your check engine light. This amber or yellow light is generally labeled “check engine” or “service engine soon”, or the light may be nothing more than a picture of an engine, or a picture of the engine with the word “check.”

When the light turns on, the ECM stores an engine code or “trouble code” in its memory that identifies as the issue, whether it's a sensor or a failing engine part. This code is read with an computerized scan tool that is used by our Toyota auto repair mechanics at Nalley Toyota Union City. There are also a number of relatively low-cost code readers that are designed for do-it-yourselfers, should you embrace that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an professional experienced to choose the issue and repair it.

How much does it cost to get the engine light checked?

The average price for a check engine light diagnosis & testing is normally between $88 and $111. The visible news, Nalley Toyota Union City offers complimentary multi-point inspections and free diagnostics, in most cases, to help mean the cause of your check engine light. The check engine light warns of issues ranging from a gas cap that's not properly tightened to a more persuasive failure like a detrimental catalytic converter or a problem with one of the car's oxygen sensors, so it visible to get the available code reading and diagnosis.

2020 Toyota Corolla Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that little light on your vehicle’s dashboard abruptly illuminates, but in reality, it is not something that should cause you to shut down in fear right away. If you hear the term, diagnostic trouble codes (DTC), these are just another name for check engine light codes. These are automotive computer codes stored by the ECM, also established as the OBD (on-board computer diagnostic system) in your Corolla. There are hundreds of conspicuous codes that your check engine light can suggest. While that sounds daunting, with a little patience, tackling principal diagnostics will give you tolerable knowledge about your vehicle and will also allow that Check Engine Light to do what it is really supposed to do: be your guide. Unfortunately, simple and glad vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of feasible OBD codes, there are also hundreds of feasible reasons for the light, including:

  • Old Battery
  • Transmission issues
  • Ignition system faults
  • Computer output circuit issues
  • Loose Gas Cap or Missing Gas Cap
  • O2 Sensor
  • Emissions controls issues
  • Bad Spark Plugs
  • Fuel and air metering systems problems

This is why it is emotional for someone who does not have a few of automotive knowledge to not assume what a code means. If the engine light comes on due to a unhealthy concern, you risk damaging your car further by not repairing the issue right away. When your check engine light comes on, you should get it checked out instantly by a certified Toyota mechanic. Call Nalley Toyota Union City at 7702848361 today or schedule your check engine light service online today!

What could cause the check engine light to come on in a 2020 Toyota Corolla?

When your check engine light comes on, this could be as uncomplicated as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a risky problem that could cause risky damage to your engine and come with a large repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow typically means something less risky but a flashing check engine light indicates that your vehicle’s engine is in risky trouble and service is mandatory quickly. If your check engine light is flashing in your 2020 Toyota Corolla, we extraordinarily recommend not to drive the vehicle and schedule Toyota service today. Below is a list of the most chummy reasons your check engine light can come on:

  • One of the most classic and plentiful cause is that your 2020 Toyota Corolla gas cap is loose, damaged or missing. The gas cap for your 2020 Toyota Corolla serves multiple purposes. It prevents gas fumes from being released when you aren't driving, it seals the fuel system and helps maintain pressure within the fuel tank. What happens if you have a bad fuel cap? If your gas cap is old or has a ruptured seal, you can lose fuel through evaporation which will result in more trips to the pump. Luckily, to replace a gas cap isn't expensive. If your check engine light turns on urgently after you put gas in your 2020 Toyota Corolla, first thing you should check is to make positive the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, classic as the O2 sensor, measures the reward of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less conducive when it comes to fuel economy. So what happens if I don’t replace your O2 sensor? A faulty sensor can not only affect your miles per gallon, but it can cause wear and tear to your catalytic converter and your 2020 Toyota Corolla's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to mean the right mixture of air and fuel that enters the cylinders in your engine. A bad O2 sensor can also cause a car to fail an emissions test.
  • Your 2020 Toyota Corolla has a vacuum leak. Every Toyota Corolla has a vacuum system that performs a expansive mixture of functions. The vacuum system also helps lower harmful emissions by routing the fumes as gasoline evaporates through the engine. If you notice that your RPM is high in idle or randomly surges, a vacuum leak could be the cause. Over time, vacuum hoses can bare out and crack, especially if they’re exposed to important heat or extreme bitter.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2020 Toyota Corolla’s exhaust system. The catalytic converter's work is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is usually caused by neglected maintenance, which is why Nalley Toyota Union City offers a complimentary multi-point inspection with every Toyota service. If you have an issue with your catalytic converter and don't get it revamped, your 2020 Toyota Corolla will not pass an emissions test, show a lack of engine performance and will negatively affect your fuel economy. Your car may run at a higher temperature, too, which can cause back-up problems from overheating.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or back-up item can wreak havoc on your 2020 Toyota Corolla if it’s not installed appropriately. These aftermarket parts and accessories can drain the battery, trigger the check engine light, or even stop the vehicle from starting. If these issues sound appreciative, transport your Corolla to Toyota and have our team of certified mechanics ensure that your aftermarket items were installed properly and aren't causing any issue. Getting accessories, especially aftermarket parts and accessories, or using OEM parts first place might cost a little bit more but could save you money from having to get poor work and wear and tear caused by poor installation work corrected.
  • Your mass airflow sensor (known as MAF) needs to be replaced. The mass airflow sensor in your Toyota Corolla is what determines how much fuel is needed to run your engine efficiently by measuring the reward of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to certain changes, like altitude. If your Toyota Corolla is having trouble starting, idling rough or has a sudden change in the position of the throttle pedal, this could be a sign of a bad mass airflow sensor.
  • New Spark Plugs or Plug Wires are needed for your 2020 Toyota Corolla. The spark plugs are the part of your engine that ignites the air/fuel mixture in the combustion chamber of your vehicle. This explosion is what moves the pistons and makes the engine run. The spark plug wires deliver the spark from the ignition coil to the spark plugs. If your spark plugs or spark plug wires are bad or old, you will experience poor performance and reduced power. In some extreme cases, your engine will have trouble starting or continuing to run. Worn spark plugs and plug wires can cause clogged catalytic converter or wear and tear to ignition coils and O2 sensors, major to more expensive repairs.
  • The battery is low or dead. The battery in your 2020 Toyota Corolla is every curious. Without a car battery, your car won’t start, light up the road ahead, play the radio or charge your phone. Today’s car batteries last much longer than they did a few decades ago, and they don't really require maintenance. The price of a new one depends on the type of Toyota you drive, but check our extant service coupons and specials.

Is it safe to drive your 2020 Toyota Corolla with the check engine light on?

If the check engine light is flashing, this means that there is a perilous issue and it is recommended to service your Toyota Corolla immediately. This question is not very easy because it each depends on the severity of the issue. If the cause is a minor issue, such as a loose gas cap, it should be safe to commute. This is naturally indicated by a persistent glow of the check engine light. If you notice a difference in the performance of the car, it could be an indication of a more bizarre problem. Call the consultants at Nalley Toyota Union City by dialing 7702848361 so you can describe the issues. Or lower your speed and deliver your 2020 Toyota to our certified mechanics as soon as correct.

2020 Toyota Corolla Check Engine Light

A glaring light indicates that the problem is unhealthy and if not taken care of immediately may result in leading damage to the vehicle. If the check engine light in your 2020 Toyota Corolla starts glaring, that means that the problem needs sudden attention and your Toyota should be transported in immediately. This shining light commonly indicates a rigid engine misfire allowing unburned fuel to be drained into the exhaust system. There it can suddenly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can really be the cause. A bad, old or dirty spark plug can cause the engine to misfire. If the problem is ignored or you continue to drive, this can spread to the spark plug wires, catalytic converter, or ignition coils which can lead to a very expensive repair. If your check engine light is flashing, please contact our team of automotive experts at Nalley Toyota Union City instantly by calling 7702848361.

Will the check engine light reset itself?

The check engine light on your 2020 Toyota Corolla will usually shut itself off if the issue or code that caused it to turn on is fixed. For example, if the cause of your check engine light coming on was a loose gas cap, if it's tightened, the light will turn itself off. Likewise, if your catalytic converter is going feasible, and you did a lot of stop-and-go driving, that may have turned on the check engine light due to the high usage of the converter. In most cases, your 2020 Toyota Corolla light will go off after about 20-40 miles. If you drive over that payment and the light is still on, you will need to bring it in to Nalley Toyota Union City so the light and code can be double-checked and reset.

How many miles can you drive with the check engine light?

It could be anything from a bad sensor to plug wires needing to be replaced. Since each check engine code has its own level of severity, it is troublesome to predict how copious miles you can drive with the warning light on. If you check engine light is flashing, we illustrate that you pull over and contact Nalley Toyota Union City to help determine if your vehicle is safe to drive in or if we illustrate a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly.