Most of the ones the typical DIYer will own will walk you through the process. When you get into more sophisticated ones, then vendor-supplied training becomes a requirement.
You got to use a OBD 2 code reader or scanner
Farting, okay?
plug it in and follow the directions
One that works with OBD II.
Yes you can OBD 2 reader/scanner are the only thing that will work to get codes
obd 2
Answering "How can you diagnose a 1998 Honda accord without an OBD scanner?"
The OBD-I connector for a 1995 Acura Legend is located under the dashboard, near the driver's side, typically near the steering column. You won't find a standard OBD-II connector; instead, you'll need an OBD-I scanner specifically designed for Honda and Acura vehicles. A common scanner for this purpose is the Honda/Acura PGM-FI scanner, which can read and clear diagnostic trouble codes for OBD-I systems.
Only OBD-II cars use a scan tool that plugs into the OBD-II port. OBD-II did not come out until 1996. Furthurmore, to my knowledge, the 2nd generation rx7's didn't use any form of OBD.
Yes a OBD 2 scanner/reader will work on your car
OBD-1. 1995 was a changeover year. All 1995 cars/trucks (GM to my knowledge, I don't know about the other brands) were OBD-1 and some have an OBD-2 connector, but still are OBD-1.
The obd port is under the dash on the driver side.