What is your vehicle's VIN (or full Model No. or full Frame No.)? We have a couple of ST185's, but they are USDM models, and if yours was built for a different market, things like that would be unique to that market (or not available on USDM ST185's).
You also posted your question in the Celica 4th Gen forum. An ST185 is a 5th Gen Celica.
You also posted your question in the Celica 4th Gen forum. An ST185 is a 5th Gen Celica.