Requiring proprietary dongles/software to clear fault codes are not uncommon, but I'm surprised there hasn't been enough interest for there to be a 3rd party tool.
Like McDonald's Shake Machines had a 3rd party tool to help diagnose issues.
Like McDonald's Shake Machines had a 3rd party tool to help diagnose issues.
This is the risk of franchising in general. You lose a certain amount of control over quality and you put your brand at much greater risk. In exchange, you get to expand your brand much faster than if you did it under centralized control and investment.