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SYMPTOM PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-44 DIAGNOSTIC PROCEDURE Step 1. Connector check: B-134 ETACS-ECU Q: Is the check result normal? YES : Go to Step 2. NO : Repair the defective connector. Step 2. Voltage measurement at the B-134 (1) Remove the ETACS-ECU, and measure at the junction block side. (2) Voltage between B-134 ETACS-ECU connector terminal No.20 and body earth. OK: System voltage Q: Is the check result normal? YES : . Go to Step 4. NO : . Go to Step 3. Step 3. Check the wiring harness between B-134 NOTE: Prior to the wiring harness inspection, check junction • Check the power supply line for open circuit. Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to use Troubleshooting/inspection Service − How to Cope with Intermittent ). NO : Repair the wiring harness. AC313826 Connector: B-134 AG Junction block side Junction block (Rear view) AC313826 Connector: B-134 AG Junction block side Junction block (Rear view) AC301541IQ Connector B-134 AC313826 Connector: B-134 AG Junction block side Junction block (Rear view) AC313870 Connector: B-108 BD Junction block (Front view) B-108(B) Harness side Main Index Group TOC |