A system and method authenticates a user if the user is associated with a certificate on a device the user is using to communicate, even if other users are also associated with the same certificate andor the user is associated with other certificates on other devices. The method and arrangement provide a precise as possible transition compensation also for the case wherein the fuel injection into the open inlet valve of a cylinder takes place. A data pattern generating circuit 10 generates parallel data bits according to the reference clock in response to the trigger signal. The simulating parameter information comprises at least one emitting simulating parameter, at least one receiving simulating parameter, and a radio beam channel transmitting simulating parameter. A replacement battery test code is generated using the battery test and the replacement storage battery identifier.