DTC Troubleshooting: B1900
DTC B1900:
 Communication Bus Line Error
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch OFF, and then back ON (II).
  1. Wait for 6 seconds or more.
  1. Check for DTCs with the HDS.
Are DTCs B1000, B1008, B1011, and B1032 also indicated with DTC B1900?
YES -
Go to DTC B1000 troubleshooting.■
NO -
Intermittent failure, the system is OK at this time.■