Brake light warning on dash

["Stefan Bendevis" <Audiman1@msn.com>]

Fellow Audi fanatics,
	I have a problem which I think many of you have gone through.  Ever since I 
purchaces this car (87 5kcdq) the Auto-check system has been flashing the 
"brake light not operating" light and all the brake lights work.  I have 
ignored it al this time but now I'm wondering if there is a cure for this 
problem.  If it is the rear bulb control unit, does anyone know what breaks 
inside of it?  Could a missing seat belt warning relay be the culprit?  Mine 
was missing since I bought the car.
	Thanks,
Audiman1@msn.com(Stefan Bendevis)
1987 5000 CD Quattro