12/19/2023 0 Comments Obd2 readerUsing his professional scan tool, he was able to command the fan to turn on, regardless of whether it needed to or not, for diagnosis purposes. For example, a mechanic friend of mine recently worked on a Toyota Prius where the fan that cools the hybrid battery wasn’t working. It’s even possible for a professional scan tool to manually activate and deactivate systems on command for diagnostic purposes. Scan tools can access more than just engine sensors and controls, including automatic transmissions, the anti-lock braking system, and more. While a code reader can read the extensive list of standard OBD2 codes, many manufacturers add codes that are unique to their vehicles, which a simple code reader may not be able to see. There are many levels of scan tools available, ranging from FIXD, which is affordable and easy for anyone to use, to professional scan tools that are much more powerful, as well as much more expensive. FIXD Premium also offers repair cost estimates, maintenance schedules and tracking, and more. These tools offer additional features like the ability to monitor live data. Originally designed for professional mechanics, many consumer grade OBD2 scanners, such as FIXD, also fall into this category. This is the type of device that some auto parts stores will plug in and use to read your codes for free.Ī scan tool provides far greater access to the car’s diagnostic data, systems, and features. Some people differentiate between an OBD2 “code reader” and “scan tool.” In this case, a code reader is a simple device that plugs in, displays trouble code information, lets you reset the check engine light, and not much else. In locations that test your car’s emissions system, the computer that plugs into your car, communicates with the state’s auto registration database, and prints your new inspection sticker is also a type of OBD2 scanner. These take many forms, ranging from a tiny box barely bigger than the OBD2 port itself, to a large device connected to the port by a wire. The device you plug into your car’s OBD2 port to read its trouble codes and live data is generally known as a scanner. Now, anyone can read trouble codes, clear the check engine light, and continue to maintain their car themselves. ![]() The market saw a need, though, and soon filled it with affordable OBD2 readers for the home hobbyist. When you got a check engine light, you were then required to take your car to the shop to find out what it meant because dealers and shops were the only ones who could read those codes with their expensive diagnostic equipment. At that point, it’s time to plug in an OBD2 scanner and investigate the issue.īack when OBD2 first came out, it was a bane to DIYers. If the problem is severe enough, it will turn on the check engine light on your dashboard to tell you there’s a problem. When the computer that runs the engine detects a problem, it will record a Diagnostic Trouble Code, also known as a DTC, in its memory. It will work for any car from a Kia Rio to a Lamborghini Murcielago. Starting in 1996 for gas-powered vehicles and 2008 for diesels, it is a standard system that allows you to plug a scanner into any make or model of car to access the diagnostic information stored inside. OBD2 is the second version of this system for cars and trucks. It’s a system that monitors the performance of your car’s engine and emissions systems, records data, and reports any problems it detects.
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