Hi.

I have a problem with my 2002 mondeo central locking and in the process I have to ask how it works.

I can hear the motors powering but they will not lock they just click, however, if I manually lock the doors and press unlock on the key fob they will unlock, try locking again and they click but do not lock.

i have covered the locks in WD40 but that has not helped. so it looks as though I am going to have to have a look at the electrical or mechanical side of things.

So the question, How does central locking work?? is there a master motor/ sensor or are there 5, 1 for each door including the tailgate.

if anyone has any idea on this problem then please feel free to help me out, this is driving me crazy. There is obviously not a signal problem because the motors make a noise, if I manually lock and press unlock they work but they will not lock, not with the key fob or by using the key...when using the key on the drivers door the drivers door only will lock though??

Could a problematic relay cause this to be intermiitent?? Because this morning I went to the car and the locking worked 6 or 7 times before failing again.

Very peculiar. All help gratefully recieved.