Rear Window De-Fogger Not working 1990 200 TQ

[Blake Gibb]

Help, winter arrived here today(Oklahoma) and I went to use the rear
defogger and nothing happened. It worked last winter.I checked the
fuse, it is fine. I checked the connections on the window, no power.
How do I get the switch out of the dash to check it? Any other places
to check? Again, the patient is a 1990 200TQ. Any thoughts would be
appreciated.
Thanks,
Blake