Ford Focus erratic central locking behaviour.

Car: Ford Focus
Variant: 1.8 LX
Model Year: 2000
Categories: Leaks & Noises
I have had a problem with my central locking which I thought at first might be my keyfob battery. I changed this but it doesn't seem to have affected the problem. Now when pressing once the drivers door ONLY will open as expected. However when I drive a distance of varying length the rest of the door's locks will suddenly also release. Since buying the car I have had to replace the drivers door lock due to "Lazy Locking" problem which was resolved. I have been told that a stray negative problem may also be the cause, I have checked the module plugs and they are secure. Any further suggestions would be helpful please?
Posted: Oct 30, 2008 (16 years ago)
Easy way to work out which one it is (as I found), open each of the doors and there will be the wiring loom from the door into the vehicle.

On the rubber cover thing at the end it attached to the car body there will be a few little bits that say "push" (not that easy, get close to the rubber and have a look) as if your holding a cd from the edge and squeezing it towards the dentre, this should pop the rubber bit off. Unplug the connectors that are revealed for all the doors.

This will disable all the power locks etc. Plug them in one at a time, test the function (ie use the fob or stick the key in the door, (i started with just drivers door so I could use my key in that one), if it works as it should move on leave it plugged in and and plug the next one in as well, if it works fine carry on untill you hit the one that when you plug it in, the locking starts to malfunction.

You can replace the power lock mechanism, but my trick (as mine was a back passenger door i never use was to leave it uncliped, lock it from the inside - it still locks and unlocks manually and opens fine, just doesnt kill the electrics!), and leave it till I either have the need, or can be bothered to replace the lock mechanism. All my other doors work fine and the cl works all good for the doors connected.

(PS if you have lecky windows, I think unplugging that cable will disable that, but if nothing else its a good way of fault finding the dodgy door(s) and saving yourself a dealer diagnostic fee.)

Hope it helps.
Posted Nov 4, 2008 (16 years ago)

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