B1006

DTC Troubleshooting: B1006

DTC B1006: MICU Lost Communication with the Door Multiplex Control Unit (DRLOCKSW Message)

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

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for 6 seconds or more.

4. Check for DTCs with the HDS.

Is DTC B1006 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connection between the door multiplex and the under-dash fuse/relay box.


5. Check for DTCs with the HDS.

Are DTCs B1058 and/or B1160 also indicated?
YES - Do the door multiplex control unit input test. Door Multiplex Control Unit Input Test

NO - Do the MICU input test. Multiplex Integrated Control System MICU Input Test