( TF09E8PK763000Y1000FAAT00 )
DTC Troubleshooting: B1000
DTC B1000:
 Communication Circuit Error (BUS-OFF)
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Wait for 6 seconds or more.
  1. Check for DTCs with the HDS.
Are DTCs B1000 and B1011 all indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure. The communication bus line is OK at this time. Check for any worn or shorted wires.■
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the appropriate connector at each control unit in the table.
    Unit
    Connector
    MICU
    Under-dash fuse/relay box connector Q (16P)
    Gauge control module
    32P connector
    Immobilizer-keyless control unit
    7P connector

  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Wait for 6 seconds.
  1. Check for DTCs with the HDS.
Are DTCs B1000 and B1011 all indicated?
YES -
NO -
Go to Step 12 .
  1. Turn the ignition switch to LOCK (0).
  1. Check for continuity between under-dash fuse/relay box connector Q (16P) No. 3 terminal and body ground.
Is there continuity?
YES -
Repair a short to ground in the wire between the under-dash fuse/relay box connector and the affected control unit.■
NO -
Go to Step 14 .
  1. Turn the ignition switch to ON (II).
  1. Measure the voltage between under-dash fuse/relay box connector Q (16P) No. 3 terminal and body ground.
Is there voltage?
YES -
Repair a short to power in the wire between the under-dash fuse/relay box connector and the affected control unit.■
NO -
Go to Step 16 .
  1. Turn the ignition switch to LOCK (0).
  1. Reconnect under-dash fuse/relay box connector Q (16P).
  1. Reconnect the gauge control module 32P connector.
  1. Turn the ignition switch to ON (II).
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Wait for 6 seconds or more.
  1. Check for DTCs with the HDS.
Are DTCs B1000 and B1011 all indicated?
YES -
NO -