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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) USING SWS MONITOR 54C-194 INSPECTION PROCEDURE F-2: Any of the sunroof switch positions is defective. CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM If any of the sunroof switch positions is defective, the POSSIBLE CAUSES • Malfunction of the sunroof switch • Malfunction of the sunroof motor assembly (sunroof-ECU) • Damaged harness wires and connectors DIAGNOSTIC PROCEDURE SWS monitor data list. Check the SWS communication signal, which are <Selected item> Front ECU •P/W•S/R • Ignition switch: ON • Operate the sunroof switch. OK: Normal condition is displayed. Q: Is the check result normal? Sunroof Switch Circuit SUNROOF-ECU SUNROOF SUNROOF MOTOR Wire colour code Item No. Item name Normal conditions Item 72 S/R ECU ACK INPUT CHECK (only |