Hi I'm having some inconsistent operation of my 1997 9000 CSE's central locking system. I have not owned the car long yet when purchased every lock was working. Not long ago the front passenger lock stop working. I removed the door trim and lubed the actuator and inspected the plug. I bench tested the actuator which worked fine. Replacing this seemed to fix things for a short time. Now however the central locking has stopped working on all doors. When the locking button on the central console, key button or driver door key is activated I can hear clicking noises from the doors but no door buttons move. Does this sound like a problem with the relay? If it is the problem how do I identify the central locking relay? I assume this is located behind the fuses on the front passenger side?
I did find that the fuse which is labelled both for the interior lights and central locking blew the other day. I have replace the fuse and the interior lights are now working but the central locking isn't.
Thanks in advance for any advise.