Most cars will have ODB ports, but not all can be used to access data in the same way.
My understanding is that it was only in that US that post-1996 all cars had to run the OBD-2 protocol. This was not worldwide, and certainly not the case with many Japanese cars (Toyota, etc) that we’re sold in Australia.
I think all cars in Australia now operate with the OBD-2, which will give you the information you are after. If an older model (say, more than 10-15 years) it may run M-OBD, which will still provide some information, but nowhere near the amount you may want.
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