By Scott ‘Gonzo’ Weaver. Ok, you got me … I’m a Flasher … or more to the point a Re-flasher. With today’s cars and components, it’s not uncommon to have to flash some driveability controller or theft system. As an independent shop, most of the re-flashing you can do will be for driveability situations or theft systems. Right now, the federal laws (Clean Air Act) only requires the manufacturer to give access to the “emission” related systems which means, an aftermarket scanner may only be able to provide you with part of a download versus the entire download.