Hi, folks in a previous post i have championed the need to become familiar with OBD and diy diagnostics, as I have mentioned on later Fiat ducato, Boxer chassis after 2018 approx. a security gateway SGW was incorporated into the OBD diagnostic port, it is assumed the purpose was to protect the dealer network, from unauthorized access this is not the case, SGW was introduced to deter what is commonly known as OBD theft this I feel Motorhome owners should be aware of and take precautions if needed, google moteringresearch . com and how to keep your car safe with an OBD port locking device, another antitheft device which is mostly overlooked, this post is not intended to add more anxieties to our lives but to add a bit of savvy for those of us with a little more leisure time tend to be from the analogue age not the digital 