B1010

DTC B1010: MICU Lost Communication with Door Multiplex Control Unit (Panic 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. Check for DTCs with the HDS.

Is DTC B1010 indicated?

YES - Go to step 4.

NO - Intermittent failure, the door multiplex control unit is OK at this time. Check for loose or poor connection at door multiplex connector A (22P), and at under-dash fuse/relay box connector J (21P). If the connections are good, check the battery condition and the charging system.

4. Check for DTCs with the HDS.

Is DTC B1059 also indicated?

YES - Go to the Door Multiplex Control Unit Input Test. Door Multiplex Control Unit Input Test

NO - Check for an open or loose connection in the communication circuit between the MICU and the door multiplex control unit. If the circuit is OK, replace the MICU. If the circuit is bad, repair the open.