Not that I know of but since the 625 has a native touch interface, I find the PC GTN simulator much more valuable than for instance the G1000 simulator.
5.2.8.6 DEMO MODE SELECT*
The DEMO MODE SELECT* discrete input is used to select Demo Mode on the GTN.
When this pin is connected to ground during power up, the GTN starts up in Demo Mode. Demo Mode allows the GTN to simulate reception of GPS satellite signals.
(this is only wired on bench setups)
Demo Mode can also be accessed by holding down the D key during power-up.
They have a great free iPad app that you can work with...