trunk powerlock

[rpm126@psu.edu (rpm)]

 all,
         looking for input on a minor glitch thrown at me by the audi gods.
My 1990 200t 's trunk won't unlock with the central locking system.   I can
 still open the trunk by turning the key to the diagonal position.    This
 happened once before, but it repaired itself somehow.   Not a terible
 problem, but quite irksome.   Anyone have any cluse, experiences or repair
reciepts? ; )    Any input appreciated.   TIA.
 Reid Meyer
JR- Finance & Accounting
Pennsylvania State Univ.
'90 200t (123k)
'81 5ks (RIP @ 183k)