I believe OP is talking about the below system. If this is correct, you most likely will not be able to hear much, if any, traffic on this system with any scanner. Please look at the database entry, in the mode column it lists DE which indicts full time encryption. There are a few TGs in the clear, but not many.
Additionally, as
@dave3825 said, there is no guarantee that scanner will work on simulcast systems, which the York Region is, though it is mainly based on location whether you will be able to receive traffic when it is a simulcast system.
York Region Trunking System Profile
www.radioreference.com