Check Engine Light Symbols

Check Engine

These are all versions of the dreaded Check Engine Light symbols, some of the oldest and easily the most common and recognizable of the symbols that you may see. The word “Check” may appear inside the image, or below, or not at all.

• Before continuing, is one of these truly your symbol?? If yes, read on below.
• Otherwise, you can return to our main Picture Symbols page orText Symbols page and scan again!

The main image is that of an older style engine seen from the side. It includes a fan blade on its front and an air cleaner looking like a helmet mounted on the top. This arrangement is rarely seen in modern automobiles and hasn’t been seen in decades.

Where the word “Check” is missing, descriptions can be all over the map. We’ve heard it called a movie camera light, a personal underwater exploration vehicle, where the fan becomes a propeller, and a helicopter, where the fan and air cleaner both become propellers or blades.

We’ve also had it described as “three elongated circles with some lines connecting them.” We can’t see that no matter how hard we try.

More Versions

The possible reasons for it coming on number in the hundreds and only your dealer or authorized service center can properly address them. However, remember that a loose or missing gas cap will cause the light to come on. This is the only solution available to the average driver, so do check that the gas cap is installed and properly tightened (make sure it clicks at least once).

In older vehicles, this Text version, the Service Engine Soon Indicator, indicates a fault in an emissions related electronic system. The Picture Symbol with the lightning bolt in it means the same thing. Your dealer will be needed to properly assess the problem. Some version of the Check Engine Light is now universal and covers these and other engine-related faults.

Symbols with lightning bolts, while still being basic Check Engine Indicators, also are meant to convey a likely issue with the engines electrical system. The symbol featuring a drawing of a car with an X through it, is specifically meant to be an Electrical System Fault Indicator. A visit to a qualified service shop is in order.

This version, a System Check Indicator, adds an exclamation point to the original Check Engine Light. It may appear in yellow/amber/orange or in red. Seen in yellow/amber/orange, a minor engine fault has been detected. Seen in red, a major engine fault has been detected. The recommendation in when seen in red is to stop the engine and get help immediately, which may be the most useful advice available. In truth, any of the these symbols require attention as soon as possible to prevent real damage.

If other symbols are also active, note that the Check Engine is your first concern. In some cases, other systems in the car may be shut down until the reason the Check Engine light is active is addressed, and the symbols associated with those symbols may be activated. Be sure to check our Multiple Symbols page for more information.

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The information on this website is provided for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.

Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.

Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.

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