Examine preventive and corrective maintenance for electric and hybrid vehicle systems. Apply diagnostic scan tools and high voltage testing meters. Identify faults related to the electric vehicle control module, "No-Ready" scenarios, battery system issues, and inverter problems. Demonstrate diagnostic testing across major vehicle systems, following general safety practices and utilizing personal protective equipment, specified diagnostic tools, meters, high-voltage shop equipment, and manufacturer service information. Create appropriate documentation and service reports to support diagnostic work.