B1000

DTC B1000: Communication Bus Line Error (BUS-OFF)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS.

Is DTC B1000 indicated?

YES - Go to step 5.

NO - Intermittent failure. The communication bus line is OK at this time. Check for loose or poor connections, or worn/shorted wires. If the connections are good, check the battery condition and the charging system.

5. Check for DTCs with the HDS.

Are DTCs B100B, B1011, and B1032 also indicated with DTC B1000?

YES - Go to step 6.

NO - Faulty MICU; replace the under-dash fuse/relay box.

6. Turn the ignition switch OFF.




7. Disconnect the appropriate connector at each control unit in the table one at a time. Clear the DTCs, then recheck for DTCs after each unit is disconnected.

Is DTC B1OOO indicated with each individual unit disconnected?

YES - Go to step 8.

NO - Replace the control unit that was disconnected and B1OOO did not reset.

8. Disconnect the under-dash fuse/relay box connector Q (16P).




9. Check for continuity between the under-dash fuse/relay box connector Q (16P) No.6 terminal and body ground.

Is there continuity?

YES - Repair the short to ground in the wire.

NO - Go to step 10.

10. Turn the ignition switch ON (II).




11. Check for voltage between the under-dash fuse/relay box connector Q (16P) No.6 terminal and body ground.

Is there voltage?

YES - Repair the short to power in the wire between the under-dash fuse/relay box connector, the junction box, and the affected control unit.

NO - Faulty MICU; replace the under-dash fuse/relay box.

DTC B1150: Communication Bus Line Error (BUS-OFF)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS.

Are DTCs B1000, B1008, B1011, and B1032 also indicated with DTC B1150?

YES - Troubleshoot DTC B1000.

NO - If only DTC B1150 is present, replace the gauge control module assembly. If no DTCs are present, it's an intermittent failure, the system is OK at this time. Check for loose or poor connections at the gauge control module 36P connector, and at the under-dash fuse/relay box connector Q (16P).