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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-180 INSPECTION PROCEDURE L-4: The turn-signal indicator lamp does not illuminate. CAUTION Whenever the ECU is replaced, ensure that the COMMENTS ON TROUBLE SYMPTOM If the turn-signal indicator lamp does not illuminate POSSIBLE CAUSES • Malfunction of the ETACS-ECU • Malfunction of the combination meter • Damaged harness wires and connectors DIAGNOSIS PROCEDURE Step 1. Check that the hazard warning lamps Q: Is the check result normal? YES : Go to Step 2. NO : Refer to Inspection Procedure L-2 "The ." Step 2. Check the power supply circuit. Q: Is the check result normal? YES : Go to Step 3. NO : Refer to Inspection Procedure A-2 "When ." Step 3. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 4. NO : Repair the CAN bus line (Refer to GROUP Step 4. M.U.T.-III other system diagnosis code. Q: Is the diagnosis code set? YES : Diagnose the combination meter (Refer to GROUP 54A − Troubleshooting NO : Go to Step 5. INPUT SIGNAL ETACS-ECU COMBINATION CAN COMMUNICATION LINE CAN COMMUNICATION LINE · TURN-SIGNAL LAMP SWITCH Turn-Signal Indicator Lamp Circuit Main Index Group TOC |