A method for managing fault messages of a motor vehicle by a monitoring computer of a motor vehicle, the monitoring computer including a step of receiving a fault message, a filtering step in which the method executes a step of storing the fault message in a temporary storage memory in case of positive filtering and a step of storing the fault messages in a dynamic storage memory. At least one first trench having a first orientation is formed in the at least one die. The position information generation unit generates position information of the electronic data to acquire the electronic data which is stored in the memory through a communication line. A biasing mechanism is attached to the extractor which biases the cam arm. The method may also include the step of providing the output of the matched filter to a frame synchronizer and to a coarse frequency estimator. The detection unit 4 guides inflow and outflow of the fluid through the fluid inflowoutflow guide means 2 and detects a concentration of conductive material through the detection means 4.