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AAA Diagnostic Code Translator

The AAA Approved Auto Repair Diagnostic Code Translator.
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AAA Onboard Diagnostics

Your car is equipped with an engine management computer that uses diagnostic software to monitor various engine control systems and communicate any identified issues.
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Nearest AAA Approved Auto Repair Facilities

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Auto Repair Articles

116 Total Articles

AAA Conservation Efforts + Battery Recycling

AAA's car battery program and Car Care Month are two initiatives that offer members and the public ways to maintain their vehicles in an environmentally conscious manner.
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AAA Advocates Awareness for Slow Down Move Over Law

For more than 15 years AAA, along with other industry and safety stakeholders, has been instrumental in passing Move Over laws in all 50 states.
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The Check Engine Light: Common Causes and How To Fix It

A check engine light can spell trouble for your vehicle. Learn about common reasons this warning indicator may turn on, and what you can do to fix it.
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7 Tips on How To Get Unstuck From Snow

Learn how to get unstuck from snow this winter with these helpful tips and tricks.
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8 Ways to Love Your Vehicle Battery

When you think of romance, your car battery probably doesn’t come to mind. But it’s worth showing your battery some love! You don’t realize how much you need it until it dies! Here are some ways to give your battery some TLC.
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All the Electric Vehicle Perks That Come with a AAA membership!

Electric vehicles (EVs) are not new to AAA. Over the past decade, we have committed to learning, developing, and servicing EVs as their popularity has grown. We offer a variety of benefits specifically for those interested in EVs.
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How Much Does It Cost To Replace Brake Pads?

Brakes can wear down quickly. Learn how much it costs to replace brake pads, as well as warning signs to look for so you can continue driving with confidence.
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Bad Alternator vs. Bad Battery: A Quick Guide

If your car doesn’t start, it could be a bad alternator or a bad battery. AAA explains the different signs for each so you can get it fixed and back on the road.
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the technology illuminates the check engine light and stores the onboard diagnostic (OBD) codes your auto repair professional will use to help pinpoint the underlying issue.

A code reader is needed to access the codes from the vehicle’s computer. Your local auto repair shop or auto parts store typically offer code reading services, or you may have your own code reader to complete this step yourself.
The latest generation of codes (OBD II) are the same for all cars. Each code consists of a five-digit alphanumeric string beginning with the letter P.

Diagnostic Code Translator
Once you have obtained the codes, use the Diagnostic Code Translator tool below to get more information about the issue your car may have. These codes provide the vital clues your auto repair professional will need to identify potential causes of the problem.
Informed Consumer
Diagnostic trouble codes do not automatically mean you will incur an expensive repair. Often a cleaning or part replacement, a new filter or spark plugs, or changing a faulty belt or wire will resolve the issue. The trained technicians and mechanics at AAA Approved Auto Repair shops can assist with your car services and help you avoid spending money on parts and repairs your vehicle may not need.

Check Engine Light
If your check engine light illuminates, take your car to your nearby auto repair shop for evaluation. While immediate service may not always be necessary, it is recommended that you do seek the assistance of your automotive professional as soon as possible to avoid a worsening problem.

If your check engine light flashes while you are operating the vehicle, continue to the nearest safe location. This system alert signifies an issue requiring immediate service.