B1008

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

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF and then back ON (II).
3. Wait for 6 seconds.
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 B1005, B1007, B1008, B1011, B1013, B1014, B1015, and B1016 also indicated?

YES - Go to step 6.

NO - Replace the MICU.




6. Disconnect the appropriate connector at each control unit in the table one at a time. Clear the DTC and wait for 6 seconds, then recheck for DTCs after each unit is disconnected,

Is DTC B1000 indicated with each individual unit disconnected?

YES - Go to step 7.

NO - Replace the control unit that was disconnected and B1000 did not reset.




7. Disconnect all of the appropriate connectors for each of the units in the table.




8. Disconnect driver's under-dash fuse/relay box connectors X (39P), N (45P), J (30P), G (8P), D (17P), and T (6P).
9. Check for continuity between each of the driver's under-dash fuse/relay box terminals listed in the table below and body ground.

Is there continuity?

YES - Repair the short in the wire between the driver's under-dash fuse/relay box and the affected control unit.

NO - Go to step 10.

10. Check for voltage between each of the driver's under-dash fuse/relay box terminals listed in the table above and body ground.

Is there less than 1 V?

YES - Replace the driver's under-dash fuse/relay box.

NO - Repair the short in the wire between the driver's under-dash fuse/relay box and the affected control unit.

DTC B1008: MICU Lost Communication with the Gauge Control Module (A/T Message)

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.
4. Check for DTCs with the HDS.

Is DTC B1008 indicated?

YES - Go to step 5.

NO - Intermittent failure, the gauge control module is OK at this time. Check for loose or poor connection at gauge control module connector B (28P) and at driver's under-dash fuse/relay box connector N (45P). If the connections are good, check the battery condition and the charging system.

5. Check for DTCs with the HDS.

Are DTCs B1061, B1808, and B2106 also indicated?

YES - Go to the Gauge Control Module Input Test. Gauge Control Module Input Test

NO - Check for an open in the communication circuit between the MICU and the gauge control module. If the circuit is OK, replace the MICU. If the circuit is bad, repair the open.