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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-49 COMMENTS ON TROUBLE SYMPTOM POSSIBLE CAUSES • Malfunction of the ETACS-ECU • Damaged harness wires and connectors DIAGNOSTIC PROCEDURE Step 1. Check that the MUT-II/III communicates Use the MUT-II/III to confirm that it communicates Q: Is the check result normal? YES : Go to Step 2. NO : Diagnose the engine control system by <4G63> or <4G69>. Step 2. Check that the MUT-II/III can When the ignition switch is turned ON, check if the Q: Is the check result normal? YES : Refer to inspection procedure A-2 "Check the ETACS-ECU battery power supply NO : Go to Step 3. ETACS- DIAGNOSIS DIAGNOSIS FRONT SIDE FRONT SIDE Wire colour code MUT-II Communication and ETACS-ECU Ground Circuit <RHD> |