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Introduction to SWS Diagnosis

The Simplified Wiring System (SWS) reduces the number of wires by sending multiple signals along a single wire. This reduces vehicle weight and simplifies construction by reducing wiring harness complexity weight. The ETACS-ECU, front-ECU, column switch (incorporated in column-ECU) and sunroof motor assembly (incorporated in sunroof-ECU) have multiplex signal circuits that enable them to transmit and/or receive multiple signals and communicate with other control unit.
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