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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) USING SWS MONITOR 54C-58 DIAGNOSIS PROCEDURE Step 1. ECU check by using the SWS monitor Check that the power supply and earth lines to the • Ignition switch: OFF ECUS TO BE CHECKED • ETACS ECU OK: "OK" is displayed on the "ETACS ECU" Q: Is the check result normal? YES : Go to Step 2. NO : Refer to Inspection Procedure A-3 Step 2. Connector check: C-301 column switch Q: Is the check result normal? YES : Go to Step 3. NO : Repair the defective connector. Step 3. Voltage measurement at C-301 column (1) Disconnect the connector, and measure at the wiring harness side. (2) Voltage between C-301 column switch connector No.1 and body earth OK: System voltage Q: Is the check result normal? YES : Go to Step 5. NO : Go to Step 4. AC310153AB Connector: C-301 <LHD> Harness side AC310183 AB Connector: C-301 <RHD> Harness side AC310153AB Connector: C-301 <LHD> Harness side AC310183 AB Connector: C-301 <RHD> Harness side AC310507BO Connector C-301 10 5 6 7 9 8 3 4 2 1 |