brake lights not working...help please

1999 Villager. None of my brake lights are working. The fuse looks good. All other lights (turn, reverse, night etc) work fine. Is there a switch or a relay for the brake lights. Any suggestions are welcome.
Thanks, Mike M.

I have a 93 Villager and I went through a series of steps before I found the problem. I changed bulbs, cleaned connections, etc. but ultimately what it turned out to be was the connection of the ground wire to the light socket. Not sure if a 99 has the same design, but what I would try is to go in and remove the tail light socket and take it to your workbench where you can work on it. On the 93 they didn't solder the ground wire to the socket - they just use an interference fit to hold it in contact. Water gets to it and corrodes the connection. I took mine apart and soldered the wire to the socket and put it back together. No more problems.