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DTC Troubleshooting: B1030

DTC B1030:
 Ultrasonic System Malfunction
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Check for DTCs with the HDS.
Is DTC B1030 indicated?
Faulty alarm control siren, replace it.■
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections.■