The NEW OEM Tesla ECU Kit MS PLCRLY (Part Number: 1487935-00-C) is a factory-supplied electronic control unit kit designed for the Tesla Model S. This unit includes the PLCRLY (Power Line Control Relay) functionality, which plays a critical role in managing vehicle communication, power distribution, and control signals within the car’s high-voltage and low-voltage electrical systems. As part of Tesla’s complex electronic architecture, this ECU ensures safe and coordinated operation of various subsystems such as charging control, relay activation, and diagnostic monitoring. Built to meet OEM standards, this component is a direct replacement for use during module replacement, system upgrades, or service diagnostics.