Why Is a Diagnostic Test Necessary?

The diagnostic test is necessary for us to determine exactly what is wrong with your automobile. If the problem is not an obvious one, the diagnostic test can save us time in diagnosing the problem so we can repair it. Naturally, the less time we spend on your automobile the less expensive your repair bill. Let’s talk more about this below and the benefits of a diagnostic test.

Main Computer

You already know this but it is worth talking about with respect to this topic. Your automobile has a main computer that is a chip called the engine control module. This chip is also called the engine control unit. You may not realize that some of your vehicle’s operations are conducted by this chip. One example is the spark plugs. The engine control unit fires them in the correct order in the combustion chamber. Another thing that the unit does is balance the air and fuel in the combustion chamber.

System Sensors

The engine control unit is also there to receive data from the sensors that are located throughout your automobile. Whether you drive a car, SUV, or truck, you have sensors that monitor system activity to make sure everything is operating as it should be. The sensors begin monitoring and reporting data to the engine control unit the minute you start your automobile. They continually monitor the activity of all of the systems in your automobile until you shut it off.

Warning Lights

The reason why this is important is that you may not realize something has gone wrong until the engine control unit tells you. This is where the dashboard warning lights come in. If there is a problem in a system that the engine control unit cannot repair, it will turn on an associated warning light or the check engine light to let you know that your automobile is not running as it should be. If the check engine light is flashing, your automobile is experiencing a serious emergency.

Diagnostic Test

The diagnostic test becomes necessary because we need the information that the system sensor sent to the engine control unit. This information comes in the form of a code. All problems covered by the engine control unit and the system sensors have a specific code. When we run the diagnostic test, we receive the code reported by the system sensor. This tells us exactly what is wrong with your automobile and what it will take to fix it. Call us today to schedule a service appointment for your automobile.

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