Power locks woes

[PN <pajono@compsol.net>]

My 87 4k is having some trouble with the locks. The front two locks lock 
and unlock together, but the rears, and the trunk do not. Bentley makes it 
looks like the drivers door lock isn't on the vacuum system, but the front 
passengers' (which works) is. So this means that part of the vacuum system 
works (fpass door)...? Anything to check? When I had the rear seat out, all 
the hoses and Y connectors looked fine.

I know this is a pretty petty problem, but my fear is that I'm on borrowed 
time with Audi door handles, and I may need all four to unlock just to get 
into the car!

Thanks,
Paul
87 4kcsq