Pressing any of the built in button does it return a reply. I am sure it is set for different baud rate stock, so try all of them until you get a communication from the tool.
You can try sending it without the space: atsp2. Before opening make sure the bluetooth is paired and the com port is not used by other software.

Ignore tunerpro settings since it can request different baud rate. 9600 is extremely slow, try upping it to 115000 in tunerpro and see if it connects.