quote from the 96-00 service manual.
"the 2P service check connector is located under the dash on the passenger's side of the vehicle."
the same location as the OBD1 cars.
it is not the same wires or connections as the OBD2 connector on the driver's side of the car.

the wire colors of this two pin connector are brown(runs to A10 of the ECU) and black(ground)