A Diagnostic Scan Tool Can Be An Excellent Aid, If You Are At Ease With Working Of Various Car Subsystems

If you are a DIY car enthusiast, you may like a diagnostic scan tool. Such a tool can be a real friend for you. It can save your costs and your car too. It can show error codes thrown up by the OBDII for various systems and subsystems of your car. It not only indicates the location and type of fault, but also guides you to resolve the problem. You can really get some much needed help from this tool. It acts much like the neighborhood friendly workshop mechanic. Since, it can throw up errors through trouble codes, you can get a glimpse into the working of the subsystems of your car. Even if it does not throw up an error code, you can spot anomalies in Serial Data View mode. There are some anomalies that don’t show up through codes. However, there may well be some anomaly in the working condition of various parts. For example the fuel leakage error code may not show if the leakage is miniscule, yet the reading of various data regarding fuel use, fuel combustion, thrust etc may expose the anomaly. This can be done if you view the corresponding data in Serial View. This option is there in an advanced diagnostic scan tool. However, to interpret such data you need to be comfortable with operating conditions and parameters of various systems and subsystems of an automobile. 

 

Functionalities of A Diagnostic Scan Tool

The basic function of a diagnostic scan tool is to read the error codes shown by the On Board Diagnostic computer. But today’s scan tools are more about interactivity and intelligence than just showing error codes. These are not like the dumb devices of yesteryears.  These tools can not only read trouble codes, but also analyze them and suggest ways to resolve the problem. They can also guide you to solve the problem. This is the biggest help that you can get from the device. But in order to serve this purpose and also for other purposes, a modern diagnostic scan tool is capable of many other functions. It is able to erase data, show current operating data in parameter as well as graphic mode etc. You can also group the parameters manually. The device can identify a system with the System identification app. In can also calibrate the sensors, Since the sensors are the ones that send the data to the OBD II, they need to throw up proper working data. With sensor calibration you can ensure that the sensors are working perfectly. The ability to program is a great utility of such tools. You can program the fuel injector so that it injects fuel in accordance with the manufacturer’s specifications. You can also program the keys and the remote if need be. However, for all these and especially for sensor calibration and programming of various components, you need to be quite adept at everything related to automobiles. A diagnostic scan tool does help the owner a lot, but only if the owner is very much conversant and comfortable with various systems and their working parameters. A service reset is a very useful function for any scan tool since without it you are stuck with a Service Now message for various services even if you have serviced them many times over. You may have changed engine oils, yet the OBD II is showing Change Engine Oils soon. This happens since the sensor can detect the changed oil or other services only after few drive cycles. In such a condition a service reset option is very handy. You can use the Service Reset option in every item. 

 

How Does It Look Like

The automotive scan tool comes with a tablet PC running either on Windows or iOS. It is much like a tablet or a smartphone. The user interface is littered with options or apps. You just need to choose your option. It comes with a Data Link Connector popularly known as DLC, a power cable and some other components. The software for carrying out the job is installed in the tablet. You need to update this software on a regular basis. The frequency of updates depends on the type of tool, the company etc. In some companies the updates cost nothing, in others you may need to pay for updating. Without updates, the tool is not likely to perform satisfactorily.

What Is an Automotive Scan Tool and Why Do You Need One

Picture this – It is a Monday morning. You have a long day ahead and lots of business to tend to. You are all set to leave for work, you get into your car, and there you see it – the check engine light is on. You are frustrated, as you do not know if it is a serious problem that requires your immediate attention or if it is something that you can deal with later at your convenience. 

In such a situation, would it not be nice to have a tool that can instantly tell you what the problem is? It is precisely what an automotive scan tool does. 

The Need for an Automotive Diagnostic Scanner

Your car, just like every other vehicle on the road today, has an onboard diagnostic system built into it. Whenever your car develops a problem, the onboard computer generates and stores an error code corresponding to the problem. It is basically an alphanumeric code, using which you can find out the problem with your vehicle. 

A scan tool is designed to communicate with the onboard computer, read the code, and display it for you to see. Once you have the code, it becomes a lot easier to find out what is wrong with your car. 

The Advantages of Using a Scanner

An automotive scan tool is an excellent time saver. Any time the check engine light comes on, you can use your scanner to find out what is wrong with your car and save yourself a trip to the nearest automobile service center. 

Secondly, it can save you a lot of money as well. Every single trip to a service center costs you money, as mechanics charge hefty fees merely to diagnose the issue with your vehicle. Sometimes, these diagnostic charges alone could run into hundreds of dollars. You can avoid such unneeded expenditure by investing in a good scanner and find out what is wrong with your car all by yourself. If the problem is serious enough to merit a visit to the mechanic shop, you can do so by all means. If not, you can fix it yourself and save even more money. 

Thirdly – and this is by far the most overlooked reason in our opinion – a scanning tool can offer you peace of mind. It might sound incredible, but if you think about it, you will realize that it is actually true. Any time your vehicle develops a problem, it can be incredibly frustrating as it means you have to spend your time and money to get it fixed. What is even more frustrating is that you do not even know if it is a major issue that could cost you a lot of money or a minor one. With a scanner, you can put all your doubts to rest and diagnose the problem yourself, which is very relieving to say the least. 

The Different Types of Scanning Tools Available

You can find a variety of different diagnostic tools on the market today and you can choose one based on your budget and the tool’s functionality. 

The most basic, user-friendly, and affordable tool you can find is a code reader. It is designed to perform only two functions – display the error code and then clear it to turn off the check engine light. You have to find out what the code means by either checking the instruction manual or by going online. 

The mid-level version is a scanning tool, which actually goes a step above what a code reader does and gives you the error code and also tells you what the code stands for. 

The high end versions can display and clear error codes, tell you what the codes stand for, and provide you with troubleshooting information, which makes your job a lot easier. They also have the ability to display, record, and play back live data from sensors, which is a very important feature. 

At the end of the day, the automotive scan tool you choose should fit into your budget. If you can afford to, you can invest in a high-quality scanner. Otherwise, a beginner level code reader could be the best choice for you. Mind you – operating a high-level scanner requires technical knowledge, which is another factor you should keep in mind while choosing a scanning tool.