Key Opens All Doors Except The Boot.

[lynnl]

The central locking has always been fine on my 2001 C5 station wagon but a couple of days ago I went to open the boot using the button on the key and it opened all the doors except the boot.  I can open it with a screwdriver but of course that isn't ideal.  Any ideas anyone?

[paul.h]

Welcome to the forum.

 

If the switch on the door is not working then possibilities can include a wiring problem such as between the door and body or the electrical connector to the switch is corroded or the switch internals are not making a good contact. You may need to remove the door inside trim to get to the switch to have a look and a quick try would be to connect a wire across its electrical connector- if this works then the switch needs replacing or cleaning internally, if not then it may be a wiring problem. If the switch and wiring are ok and there is a 12 volt supply to the switch and the earth wire from the switch is making a good earth, then the lock motor may be at fault.