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INPUT SIGNAL PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-321 DIAGNOSTIC PROCEDURE Step 1. Use the MUT-II/III to confirm a diagnosis Check that the ETACS-ECU sets a diagnosis code. Q: Is the diagnosis code set? YES : Refer to diagnosis code chart NO : Go to Step 2. Step 2. Retest the system. Replace the column switch, and check if the column wiper/washer and rear wiper washer switch) Q: Is the check result normal? YES : The procedure is complete. NO : Replace the ETACS-ECU. INSPECTION PROCEDURE N-7: The windshield intermittent wiper volume signal is not received. CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM POSSIBLE CAUSES • Malfunction of the column switch • Malfunction of the ETACS-ECU • Damaged harness wires and connectors COLUMN WINDSHIELD UPPER ETACS- Wire colour code Windshield Intermittent Wiper Interval Adjusting Knob Input Circuit |