The shift from a distributed architecture to a centralized architecture will not only simplify wiring harnesses and cater to the trend of lightweighting electric vehicles, but most importantly, it will reduce costs at all stages of the vehicle production life cycle, including development, manufacturing, and post-production costs. For wire harness production, the production cost is reduced from the following important aspects. By integrating upwards. Consolidating functions spread across multiple ECUs into a smaller set of domain controllers enables the vehicle to get rid of numerous enclosures, brackets, relays, fuses, terminals and wires.