Welcome to the forum - I drive a 1998 2.0 Grand Vitara - African market version, built in Japan.
My vehicle has a 16-pin J1962 connector under the dashboard on the driver's side - this is the OBD2 style connector, but, it uses SDL rather than the OBD2 protocols - your's is probably similar - James can supply you with the interface needed to connect a laptop to this connector and we can assist with the mapping to get your ECU recognized by the software.