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2018 Toyota Corolla Check Engine Light Codes

The check engine light turning on can be quite intimidating to see that small light on your vehicle’s dashboard suddenly 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 common as the OBD (on-board computer diagnostic system) in your Corolla. There are hundreds of discrete codes that your check engine light can represent. While that sounds daunting, with a small patience, tackling mandatory diagnostics will give you attentive knowledge about your vehicle and will also allow that Check Engine Light to do what it is surely supposed to do: be your guide. Unfortunately, clear and convenient vehicle symptoms do not always accompany an illuminated Check Engine Light. Since there are hundreds of likely OBD codes, there are also hundreds of likely reasons for the light, including:

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

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

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

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

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 difficult to predict how frequent miles you can commute with the warning light on. If you check engine light is glaring, we endorse that you pull over and contact Nalley Toyota Union City to help designate if your vehicle is safe to commute in or if we endorse a tow truck. The safest bet is to decipher the code and then plan your strategy accordingly.

Will the check engine light reset itself?

The check engine light on your 2018 Toyota Corolla will frequently 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 productive, 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 2018 Toyota Corolla light will go off after about 20-40 miles. If you commute over that amount 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.

Is it safe to drive your 2018 Toyota Corolla with the check engine light on?

This question is not particularly straightforward because it all 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 drive. This is typically indicated by a steady glow of the check engine light. If you notice a difference in the performance of the vehicle, it could be an indication of a more appalling problem. If the check engine light is flashing, this means that there is a appalling issue and it is recommended to service your Toyota Corolla instantly. Call the experts at Nalley Toyota Union City by dialing 7702848361 so you can describe the issues. Or reduce your speed and bring your 2018 Toyota to our certified mechanics as soon as achievable.

2018 Toyota Corolla Check Engine Light Flashing

Although there are innumerable achievable causes of an illuminated Check Engine Light, we know from years of providing Check Engine Light Diagnosis Service that there are several common causes comprising something as authentic as a loose gas cap. Disparate common reasons for a Check Engine Light are faulty head gasket, damaged oxygen sensor, faulty emissions control part, dirty mass airflow sensor, a malfunction with the fuel injection system, or defective spark plugs to name assorted. 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 needed 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 2018 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 draconian systems. The sensors are continually detecting conditions while sending data to the electronic control unit. If the electronic control unit 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 exactly is untrue 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 Highly Qualified Service professional.

2018 Toyota Corolla Check Engine Light

If the check engine light in your 2018 Toyota Corolla starts flashing, that means that the problem needs urgent attention and your Toyota should be brought in quickly. A flashing light illustrates that the problem is perilous and if not taken care of quickly may result in extensive damage to the vehicle. This flashing light normally hints a exacting engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can straightaway increase the temperature of the catalytic converter to a point where break is likely, requiring an expensive repair. Some owners ask if spark plugs cause the check engine light to flash? This can absolutely be the cause. A harmful, former 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 particularly pricey repair. If your check engine light is flashing, please contact our team of automotive consultants at Nalley Toyota Union City hastily by calling 7702848361.

What could cause the check engine light to come on in a 2018 Toyota Corolla?

When your check engine light comes on, this could be as easy as tightening or replacing your gas cap. Likewise, the check engine light could also be a warning of a relentless problem that could cause relentless damage to your engine and come with a big repair bill. Depending on your make and model, the check engine light will illuminate or blink. A steady glow often means something less relentless but a blinking check engine light indicates that your vehicle’s engine is in relentless trouble and service is basic suddenly. If your check engine light is blinking in your 2018 Toyota Corolla, we greatly endorse not to commute the car and schedule Toyota service suddenly. Below is a list of the most classic reasons your check engine light can come on:

  • One of the most innate and bountiful cause is that your 2018 Toyota Corolla gas cap is loose, damaged or missing. The gas cap for your 2018 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 erstwhile 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 pricey. If your check engine light turns on promptly after you put gas in your 2018 Toyota Corolla, first thing you should check is to make convinced the cap isn’t loose — or that it's still on your car’s roof or at the fuel pump.
  • Your 2018 Toyota Corolla has a vacuum leak. Every Toyota Corolla has a vacuum system that performs a extensive variety 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 dry out and crack, extraordinarily if they’re exposed to compelling heat or extreme chilled.
  • The battery is low or dead. The battery in your 2018 Toyota Corolla is every threatening. 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 frequent decades ago, and they don't certainly require maintenance. The price of a new one depends on the type of Toyota you drive, but check our current service coupons and specials.
  • 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 fundamental to run your engine efficiently by measuring the amount of air entering the engine. As a part of the engine management system, the mass airflow sensor helps adjust to convenient 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.
  • Your catalytic converter is bad or going bad. The catalytic converter is a part of your 2018 Toyota Corolla’s exhaust system. The catalytic converter's function is to turn the carbon monoxide created by the combustion process into carbon dioxide. A damaged catalytic converter is frequently 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 repaired, your 2018 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 alternative problems from overheating.
  • Issues with any aftermarket items. An aftermarket alarm, exhaust or alternative item can wreak havoc on your 2018 Toyota Corolla if it’s not installed properly. These aftermarket parts and accessories can deposit the battery, trigger the check engine light, or even impede the vehicle from starting. If these issues sound prevalent, bring your Corolla to Toyota and have our department of certified technicians ensure that your aftermarket items were installed correctly and aren't causing any issue. Getting accessories, extraordinarily aftermarket parts and accessories, or using OEM parts first place might cost a economical bit more but could save you money from having to get poor function and damage caused by poor installation function corrected.
  • New Spark Plugs or Plug Wires are fundamental for your 2018 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 erstwhile, 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 damage to ignition coils and O2 sensors, big to more pricey repairs.
  • Your O2 Sensor (Oxygen Sensor) needs to be replaced. The Oxygen sensor, established as the O2 sensor, measures the amount of oxygen in your exhaust system. If there is excess oxygen in your exhaust system, fuel burns faster and your vehicle will be less informed 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 damage to your catalytic converter and your 2018 Toyota Corolla's spark plugs. The O2 sensor sends data to the vehicle’s onboard computer to designate 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.

What Does the Check Engine Light Mean?

One of the most generally misunderstood lights or indicators in your 2018 Toyota Corolla is the check engine light. The check engine light is part of the onboard diagnostics system, and displays in a few contrasting ways. It can say "Check Engine", it can be a symbol of an engine, it can even be a combination of both. This light illuminates in either an amber or red color and is part of the diagnostics system found on your vehicle. Onboard computers increasingly have controlled and monitored vehicle performance since the 80s and do a variety of things for your 2018 Toyota Corolla. Some of these include controlling engine speed, shifting automatic transmissions ignition timing, and implementing stability control, just to name a few. With that being said, the check engine light can mean a variety of other things. It can be as classic as your gas cap being loose or as strict as engine knocking. If your check engine light is on in your 2018 Toyota Corolla, contact Nalley Toyota Union City. Our Toyota service department can assist you find out what code is turning your check engine light on or scan why your check engine light is flashing. Contact Nalley Toyota Union City today!

Check Engine Light Service 2018 Toyota Corolla

What do you do when you’re driving along in your Toyota Corolla and suddenly, a yellow light illuminates 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 value of the unknown) can be just as stressful. But take a deep breath and realize the light coming on doesn’t select 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 2018 Toyota Corolla checked as soon as capacity. Ignoring that warning could end up causing principal damage to expensive engine parts.

When your 2018 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 handy, a computer turns on your check engine light. This amber or yellow light is ordinarily 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 electronic scan tool that is used by our Toyota auto repair mechanics at Nalley Toyota Union City. There are also a number of relatively cheap code readers that are designed for do-it-yourselfers, should you elect for that route too. While this code will tell you the issue that is detected, a true diagnosis still requires an experienced mechanical to imply the issue and repair it.