The electronic locking system with a a for intended operating electronics serving (14) containing key (2) and associated signal processors with closable parts, wherein the key (2) via transmission/reception means an encoded operation signal to the signal processing means (8), preferably bi-directionally exchanges, so that a positive evaluation of the operation signal (8) a controller in communication with the signal processing means (20) amending the locked state corresponding to a locking or unlocking of the closable part actuated, wherein a first signal processing means (6) in such a way in a motor vehicle (4) is arranged that by means of the coded operation signal (8) a remote-controlled locking or unlocking the doors (12) of the motor vehicle (4) can be carried out, wherein at least one second signal processing means (6' ) on a the motor vehicle (4) assignable property (5), such as a garage (33) or a house (34) is arranged, so that by means of the same coded operation signal (8) a locking or unlocking at least one door (35, 36) of the property (5) can be carried out, and wherein the replacement of the operating signal...