Contributed to the UWaterloo-Formula-Electric/firmware repository by enhancing vehicle firmware data modeling and diagnostic capabilities over a two-month period. Developed new IVT-related signals and integrated IMD general information into the CAN database, improving data visibility and signaling accuracy for embedded systems. Migrated multiplexed signals, adjusted scale factors, and introduced configuration files for streamlined data validation. Addressed a critical bug in CAN message handling to strengthen IMD fault response and reduce error propagation risk. Emphasized code quality and traceability through commit-level documentation. Utilized C and DBC languages alongside CAN Bus expertise to deliver safer, more reliable firmware for electric vehicle applications.