GS-911 is an expensive piece that might interface with your phone and might not.
Some independent shops have them. I ve never needed one, I think it is more of a shoptool than a road tool.
By the time you wire up the laptop, hopefully charged, read the code, and hopefully get the diagnosis, you will still be waiting for a tow, or pushing it somewhere.
It can tell you the problem but you might need a shop manual, too. Not to mention some parts you could be waiting days or weeks for.
Backordered to Germany happens.
I carry my shop manual on my phone in PDF along with some sound advice service notes. Beyond that, it is up to the Virgin of Guadalupe to decide who rides and who walks, afterall, it' s Mexico, and Darwin, like chrome, won' t get you home!