Checking method and electronic circuit for the secure serial transmission of data

test methods, in which means of test data stored via serial data a serial data bus 106 from a transmitter 303 to a receiver 304 transferred, then the receiver the data at least prepared in part and those transmitted with the test data to detect transmission errors are compared, wherein in the transmitter at the generation of test data as well as in the receiver in the processing of the data is the same Prüfdatenbildungsmethode is taken as a basis, the Prüfdatenbildung / Treatment using error detection hardware means done,in particular, continue in the area of ​​the receiver next to the error detection hardware means also error detection software agents 102 available, which checks the received data in addition be, and further wherein an error in the transmitted data and / or test data through a transmitter-end fault simulation means is caused. Described is also a transmitter and receiving circuit for performing the above method and their use.