Methods and systems are provided for analyzing a fault in a communication system. The system includes a diagnostic module. The diagnostic module has first through fifth control logics. The first control logic is configured to determine a topology of the communication system. The second control logic is configured to request a response from at least one module that is in electronic communication with the communication system. The third control logic is configured to receive the response. The fourth control logic is configured to analyze a characteristic of the response. The fifth control logic is configured to determine a characteristic of the fault based on the characteristic of the response.