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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.

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 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 DTC B1057, B1159, and B1807 also indicated?

YES - Go to MICU input test. Component Tests and General Diagnostics

NO - Go to door multiplex control unit input test. Component Tests and General Diagnostics