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DIAGNOSTIC TROUBLE CODE PROCEDURES SMART WIRING SYSTEM (SWS) NOT USING SWS MONITOR 54B-37 Step 6. Check that the hazard warning lamps When the ignition switch is turned to the LOCK Q: Is the check result normal? YES : Refer to diagnosis code No.12 "Column switch fault or improper connection NO : Refer to inspection procedure A-2 "Check Diagnosis code 31: Open circuit in signal line between the SRS-ECU and the ETACS-ECU (impact CAUTION Whenever the ECU is replaced, ensure that the DIAGNOSIS CODE SET CONDITIONS POSSIBLE CAUSES • Malfunction of the SRS-ECU • Malfunction of the ETACS-ECU • Damaged harness wires and connectors DIAGNOSTIC PROCEDURE Step 1. Use the MUT-II/III to confirm a diagnosis Check that the SRS-ECU sets a diagnosis code. Q: Is the check result normal? YES : Go to Step 2. NO : Refer to GROUP 52B − Troubleshooting Wire colour code IMPACT-DEPENDENT SRS-ECU ETACS-ECU |