That’s a tricky question to answer, because the answer is basically “No, and yes,” or “Yes, but no,” depending on how you want to look at it.
Generally speaking, there are two or three types of auto accompaniments— those that use MIDI tracks, those that use audio tracks, and those that use some combination of both.
Auto accompaniments that use MIDI tracks can be somewhat converted to work on other keyboards, although the degree of success can depend on how similar the voices or tones are between the two models, as well as how similar their basic features are, and especially how similar the accompaniments for each model are to each other as far as things like how many different types of sections they have (such as intros, main loops, fills or breaks, and endings), how many variations of each type of section they have, how long each type of section can be, and what types of parts the various channels of the accompaniment are used for. If there are too many differences in these things, the converted accompaniment may be quite different than the original. In other words, it can be just like translating something from one language into another— some things might be “lost in translation.”
Nevertheless, there are people who enjoy converting accompaniments from one brand of keyboard to another. There is at least one program that is designed to help with this, but I forget the exact name right now (Style Works? Or maybe Style Magic?), and I’m replying from my iPad right now so it’s kind of awkward to try to look it up while I’m replying. In any case, the program is rather expensive, and there are multiple versions of it depending on which brand of keyboard you want to convert accompaniments to.
I believe there is also at least one internet forum whose members are devoted to converting accompaniments from one brand to another, but I think you are expected to pay a membership registration fee.