OBD Diagnostic Codes for 1994 Cars

Troubleshooting engine problems under the hood
Your OBD-II codes will guide you before you start grabbing at things under the hood. Reza Estakhrian/Digital Vision/Getty Images

If you're looking for OBD Codes for your vehicle, you need to follow the right path to get you there. OBD, or On Board Diagnostic, codes can tell you all sorts of things about your engine and how it's running. Don't think of OBD diagnostics as a secret art form known only to professional auto techs and denied car owners like yourself. All of the information you need to access your vehicle's stored codes and try to figure out what to do with them can be found online.

If you already have your code, follow the links below to any of the '94 models covered. Choose your vehicle's make from the list below, then follow the link to the database of Diagnostic Trouble Codes for your car.

Below You'll Find the Links to Codes For Cars and Trucks from the 1994 Model Year. Other model years are listed elsewhere on the site. 

Acura Codes
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Buick Codes
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If you're having an issue with your car or truck, and it is a 1996 or newer vehicle, you need to read the computer to download any engine codes that have been stored. Your engine's computer will store any information pertaining to its systems at the time that an irregularity is detected. For example, if your engine experiences a misfire (a detonation in one of the cylinders not inititiated by the spark plug through the car's ignition system) the computer will record the event,.

Sometimes it will activate the Check Engine Light to indicate to the driver, or a mechanic, that something has happened in the engine which was out of the ordinary, and that this event has been recorded by the computer. Of course, a Check Engine Light on its own means little to you as a car owner. In fact, it's more of a sign of repair bills to come, and in all cases an unwelcome one.

Behind the light, however, is a system that is ready to share info with you regarding the health of your vehicle's engine. The OBD-II system your vehicle is equipped with has scores of codes at the ready to describe what ails it. You can access these codes through a data port on your vehicle, but you need the equipment to do it. Most major auto parts chain stores will read your diagnostic codes for you, and they will even cross reference them a little to help you figure out what has caused the code. These days there are also some excellent OBD-II diagnostic apps for smart phones and tablets that bring you the power that was formerly reserved only for automotive technicians with machines that were tens of thousands of dollars. The code by itself means nothing if you can't decode it. Be sure to read about your specific problem code before you attempt to troubleshoot. For more information on where these codes come from and what you're supposed to do with them, check out the On Board Diagnostics introduction.