Hello All, I have Toyota touch2 which I`m trying to access it's Service menu for upgrade purposing. Only thing is, the system is not connected to the car, and I need an alternative way of accessing, or faking for that matter the toggling of the light switch which grant access to the hidden Service Menu. I searched all over the place and couldn't find a solution. My system does not have the extension module, it it's any matter. toyotamaps.online/map-updates/toyota-touch-and-go-navigation-update Assaf.
If you're just updating the maps/firmware (which I'm guessing you are from your link) you don't need to access the service menu on the Touch 2. I just updated my head unit a few days ago. There's a whole post on it here: Map update 6.11.2 | PriusChat
This is what I was looking for. Gen 4 Prius "Maintenance" mode | PriusChat but unfortunately it does not let me update my firmware.