I had asked the question in a thread in the Tech forum: LINK

But there was no response. There had been discussion of using laptop software from a few sources and also standalone units such as the Equus OBD I and II/CAN scanner or Actron 9150.

I don’t have a laptop and am a Mac user anyway, so I’d be looking for a standalone unit. What are the current suggestions so I can communicate with my ’94 if necessary?