hi there can any one help i cant lock my fiesta mk6 3dr is there any way to find out witch lock is faulty, when you lock the doors all thay do is unlock again any advice please

sounds like you have a dodgy latch.if you can disconnect one of the doors and if the problem goes you know thats the problem door.the door cards can be a pain to remove.lots of bolts and the outer handle assly have to come off.

Hi,

Best way to check it, is to disconnect the battery, then try manually locking each of the doors, then try opening them. If there is a fault with the lock, then it wont lock properly.