B1105

DTC Troubleshooting: B1105

DTC B1105:

Door Multiplex Control Unit Lost Communication With MICU (Door 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 B1105 indicated?

YES -

Go to step 5.

NO -

Intermittent failure. The system is OK at this time. Check for loose or poor connections.�

5. Check for DTCs with the HDS.

Are DTCs B1057 and B1159 also indicated?

YES -

Do the MICU input test MICU Input Test.�

NO -

Do the door multiplex control unit input test Door Multiplex Control Unit Input Test.�