Disclosed is a diagnostic method for a logic used in a vehicle in which a
sequence of a plurality of logic operations is predetermined, the method
comprising the steps of assigning an ID to each logic operation; comparing
an ID of a logic operation that should be performed ("correct logic
operation") with an ID of a logic operation to be performed ("present
logic operation") before the present logic operation is performed; and
determining that an error has not occurred in the case where the correct
logic operation corresponds to the present logic operation, and
determining that an error has occurred in the case where the correct logic
operation does not coincide with the present logic operation.
