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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-40 SYMPTOM PROCEDURES Inspection Procedure A-1: Communication with the M.U.T.-III is not possible. CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM It is suspected that the power supply circuit to the POSSIBLE CAUSES • Malfunction of the ETACS-ECU • Damaged harness wires and connectors DIAGNOSTIC PROCEDURE Step 1. Check that the M.U.T.-III communicates Q: Is the check result normal? YES : Go to Step 2. NO : Diagnose the system, which cannot ETACS- J/B SIDE DIAGNOSIS FRONT SIDE Wire colour code MUT-III Communication and ETACS-ECS Circuit Main Index Group TOC |