DIY repairs are nothing new; they are a part of the American culture. For some, it's about saving money, for others it's the pride of actually 1 a job without any professional help. Cost is the big factor of course. Ask any DIY'er about a project and the first thing they'll tell you is how much money they 2 by doing it themselves. These days car repair is slowly going 3 as one of those DIY repairs. The cost of the specialty tools is the leading 4 However, it’s not just the cost, it’s the constant change, updates, and proper procedures that 5 from one vehicle to the next. Years ago, if you had a couple of screw drivers and a box of 6 you could pretty much take any carburetor ( 汽化器 ) apart from any manufacturer. All you needed was a diagram, a rebuild kit and a place to lay it all 7 . Not so today, each manufacturer has their own software, their own procedures, and their own 8 “unique” way of “diagramming” all that info. A manufacturer level scanner is the 9 scanner for most repairs. These scanners are almost all Internet-based these days and are 10 updated to insure the latest information is available. The same is true with a lot of aftermarket scanners, keep in mind, the 11 off-the-shelf scanners can leave you with only 12 information. Not all scanners are the same. I haven't seen one aftermarket scanner be able to handle all the 13 that a manufacturer scanner can. Cost vs. quality, or in this case “content” is always an issue. That's 14 the problem can start, especially for the consumers 15 to do things themselves. Keep in mind what the original purpose was for those aftermarket tools. Most were 16 to answer a certain market need and not be an overall tool to 17 every function. For example, I have a lot of scanners that will read air bag codes 18 just about every manufactured vehicle out there. 19 I only have certain scanners that will perform the passenger seat presence reset on certain makes and models. 20 the reset the air bag light will stay on until that procedure is performed.