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Mechanics who we speak to typically tell us that the most important feature of any OBD2 scanner is that it can read engine codes. Other design features can be nice, but for many, a basic code reader is all they need. Zac Salerno, a technician at Import Performance and certified Safety Inspector with more than three years of experience, told us: With that said, there are several other factors to look for in the best OBD2 scanners, including compatibility, Bluetooth capabilities, and protocols. In the following sections, we will detail each feature offered by the best OBD2 scanners to help you decide which one is best for you. OBD and OBD2 are two different generations of automotive diagnostic car code readers. OBD refers to domestic vehicles made before 1996. OBD2 ports became commonplace after federal legislation implemented stricter environmental standards on American automakers. Can an OBD2 scanner damage your car? It works with a lot of vehicles, so as well as working with your current vehicle, it’s likely to work with the next one too. Some other scan tools have a bigger screen and it’s a bit easier to read. Not a huge issue, though.
Steering Angle Sensor (SAS) calibration : All modern vehicles are equipped with power steering systems that greatly assist in handling. If the SAS is improperly calibrated, your vehicle will be difficult to steer and may handle strangely (the wheel turning too easily, or only with difficulty). The SAS typically needs to be reset after any wheel alignment. The accuracy of an OBD2 scanner depends on the model you buy and the extent of codes it can read. More advanced scanners can read a greater number of codes from different automakers, and perform more functions. What is a bi-directional scanner? Real-time data: Accessing real-time data is not necessary for most people. For those with advanced automotive know-how, this information can help optimize engine performance and diagnose certain repairs. In addition to engine information like temperature, RPMs, and fuel injection rate, you can also monitor ABS and battery data. Besides maybe breaking a few pins in the OBD2 port, code readers aren’t able to harm major vehicle systems. Are cheap OBD2 scanners any good? Oil light reset, Throttle matching, SAS calibration, DPF reset for diesel engine and many other maintenance services, and the brands covered are continuously updated.
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Smog test : A smog test measures your engine’s emissions and determines if your emissions systems are working properly. All vehicles in the United States must meet certain emissions standards. You cannot pass inspections by running tests at home, but you can determine beforehand if your vehicle will pass an emissions test. But for a lot of people, their motivation for buying this kind of tool, is as an investment that can save them money and time. That is, the hefty cost and hassle of taking to the vehicle to a mechanic and paying their steep prices. When you’re looking for the best OBD2 scanner, Bluetooth connectivity is worth considering. Since having a physical cord usually keeps you close to the vehicle while you’re performing a diagnostic, wireless scanners are gaining popularity because of their simplicity and data collection capabilities. It’s all good being able to do in-depth scanning but any serious mechanic is going to need to be able to actually work on the car to fix issues and carry out maintenance works. If you’re a professional mechanic, you need a scanner which can offer both all systems diagnostics and maintenance functions, to allow you to carry out maintenance works. Now… we come across many scanners in the car diagnostics industry, from the good, the bad, and the downright ugly! What we find very unusual about the TOPDON ArtiDiag800BT is the large number of maintenance functions which it supports. Not just “supports” but actually comes included with! It’s definitely in with the good but warrants it’s own category, as it really does stand out from the rest with a generous offering of 28 maintenance functions! The Launch has an easy-to-use touchscreen interface and a long connection cable. Some OBD2 scanners have shorter cables that make it difficult to hold the device in your lap once connected.
At a minimum, any OBD2 scanner should be able to read and ideally clear DTCs. You may want an OBD2 scan tool for several reasons, even if you aren’t a professional mechanic. With an OBD2 reader, you can: Our ease of use rating represents the relative ease or difficulty of operating the OBD2 scanner. Scanners that can retrieve engine codes with the fewest button pushes scored best in this category. This can be a wonderful option if you’re looking for a “set it and forget it” tool that collects data while you’re driving, but it also frees users to look under the hood while running a diagnostic. However, some higher-end scanners come with internal batteries that last for hours, so the amount of information you need will dictate the best OBD2 scanner for your job.
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Rather than having to dig through all those options and menus, the ArtiDiag800 BT lets you save the 5 most commonly-used reset functions, which you can more readily activate. In addition to what was listed earlier, there are several other cool touches beyond reading, resetting, and erasing error codes. For starters, you can read the ECU to view its version information or any other vehicular data. VCI connector can be plugged into the mainframe for easy storage and to prevent loss of VCI connector. There are several different communication “protocols” that onboard computers may use to communicate with an OBD2 scanner. The most common are:
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