Surely you have a cellphone? Get one of those $5 ELM327 dongles on ebay, even the cheap ones that don't really support all OBD2 protocols (despite their claims), work on canbus if they're not DOA. DOA is a problem with the cheap ones, but if getting it from China, usually DOA means you just get a refund.
If you don't want that hassle, just pay closer to $10 for one on Amazon, shipped from their warehouse, not the 3rd party importer.
It is a far, far better option to be able to see real time data, instead of jiggling a key to only see OBD2 codes, and then possibly not even be able to reset codes if they don't clear when the battery is disconnected.