On Apr 15, 5:59 pm, "Berernice McGurren"
<u...@REMOVETHISBITbtopenworld.com> wrote:

A common problem.   Most likely due to bad solder joints in the
central locking controller located under the dash to the left of the
steering collum.  To get at it one must remove the carboard shield
under the dash by pulling out the plastic rivet-like retainers.
Chances are you will break one or more of these but they can be
replaced.
The controller is a black plastic box about 5 inches long, 2 inches
wide, and 1 inch thick.  it is held in place with one clip.   It is an
easy fix for anyone with minimal experience with soldering electrical
components.  Carefully pry the box apart and pull out the circuit
board.  On the board are two mini-relays (little black boxes).  One is
for the door locks and the other for the truck lock.  For some reason
the solder that holds the prongs of the relays to the board is
insufficient and with age the connections become intermittent.  Simply
resolder the prongs of the relays to the board and I will but your
locks will work perfectly.  Check the other solder joints while you
have the board out.  Saab wants over $250 plus labor to replace the
central lock controller so its worth fixing yourself or taking it to
an electronics repair shop.  It is possible that the problem is with a
switch in the driver's door but I would say that 99 times out of 100
it is due to poor solder joints in the controller.