Diesel Data: Automotive Repair

B1006




DTC Troubleshooting: B1006

DTC B1006:

MICU Lost Communication With Door Multiplex Control Unit (Door Lock Switch 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 at least 6 seconds.

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 connections 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 MICU Input Test.�