You have to unlock most modules, or input a code along with updates, otherwise you brick the the module. Current generation vehicle electrical architectures ar

You have to unlock most modules, or input a code along with updates, otherwise you brick the the module. Current generation vehicle electrical architectures are not network safe and rely on physical security. There is a big trade-off here for the next generation; the electrical architecture will be COMPLETELY locked down, and end users will be locked out of making any updates to modules - something that tinkerers and home-brewers are at odds with. Read only access will still be allowed.