yes stephen it can,put the key in ignition & turn repeatedly & quickley it to position 2 (if you still have the ford stereo fitted,you will hear a audible noise,when you hear this press the lock/unlock and it should lock/unlock the doors) if you have had your own stereo fitted you will have keep turning the key repeatedly & quickly & keep pressing the button's as described earlier until the doors lock/unlock hope this help's & best of luck
steray
September 2009