Most cars have a check engine light. This light helps makes you aware of potential problems within your car that can be damaging to the engine. Often times, this is your first indication that anything is wrong, helping you to catch small problems before they turn into large ones. However, if you have never had this issue before, you may be curious as to how engine light diagnostic, or determining the reason why the light is on, happens. Here are three different ways.

Manual Checking

One of the ways that engine light diagnostic testing is done is by manually checking all of the parts that connect to the engine system. This is the least commonly used method because of the amount of time it takes, but is sometimes done by do-it-yourselfers who don't have costly diagnostic tools or computers. The upside to this method is you may also find other problems with the car that are not connected to a warning light,while doing an inspection. This can help prevent other issues in the future.

Hooking the Car Up to a Diagnostic Tool

Another way engine light diagnostics are done is by connecting the engine to a diagnostic tool. When connected, the tool will give off a number or code. This code indicates where the problem in the car is, giving the mechanic a place to begin looking for the problem in your car. This is a great way to hone in on an area without blindly searching for a problem. But, it typically only tells a mechanic where the problem is located, not what the problem is, meaning they still have to figure that part out on their own.

Hooking the Car Up to a Computer

The last way engine light diagnostics are done is by hooking your car up to a diagnostic computer. This can typically only be done on newer vehicles that have the chips needed for this technology. When the car is connected to this, the auto mechanic can see exactly what is causing the check engine light to come on. This helps them pin point the issue quickly, which ultimately, can reduce your labor costs.

If your check engine light has come on, you will want to have diagnostic tests done on your car to determine the problem. AA Auto Tech can help you with all of your diagnostic tests, helping you to fix any potential problems before they turn into larger ones. Give us a call today to schedule an appointment.

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