because the factory key has a transponder
never heard of this for the 90s cars.
when I push the lock button on the driver side door nothing happens,
are you talking about the separate lock / unlock button,
or the plastic lever like think on the door opener.
what happens when you use the lock / unlock button on the passenger door?
do you have a key fob for remote entry?
often when the driver door lock does not work with the others it is due to the remote entry unit being unplugged.
in the US,
for the 95 - 96 cars, when you unlocked / locked the driver door with the key or the ''lock'' on the door handle,
they all operated.
for the 97 - 99 cars, when you locked / unlocked with the key,
only the driver door operated.
if you used the separate lock / unlock button, they all operated.