Mondeo Central Locking Not Working On One Door

If that fails the latch is busted. To test the wiring there are 3 wires in the plug 2 yellow and 1 black test between yellow and black and when the central locking is activated you should get 12v for abut 1 2 a second if not test between the other yellow and black 1 yellow is for locking the other yellow is for double locking if you get 12v then the wiring is ok. Hi this sounds like the fuse has blown for the central locking due to a hi amp draw from a fault lock depending on the country that you are in you will need to find the fuse for the central locking for european cars the fuse will be 57 or 72 it will be a 15amp fuse that will nead to be changed to a yellow 20 amp fuse once the blown fuse is replaced insert the romote key in its slot and turn the ignition on then remove the key open and close the drivers door and the central.