SYSTEMS AND METHODS FOR MONITORING GROUND LINE DEGRADATION OF ELECTRIC DEVICES COUPLED TO A COMMUNICATION BUS

Methods and systems are provided for monitoring ground line degradation of electric devices coupled to a communication bus. The method includes, by a processor: receiving voltage data including measurements of voltages of messages transmitted by the electric device over the communication bus, generating health indicators from the voltage data associated with ground line degradation of the electric device, the health indicators including statistical moments calculated based on the voltage data, and determining a health stage of the electric device based on the health indicators, the health stage including a classification based on a relationship between ground line degradation and communication loss for the electric device.