B1806

DTC B1806: Power Seat Control Unit Lost Communication with MICU (MICU Message)

DTC B1810: Power Seat Control Unit Lost Communication with MICU (MIRRORSW 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 B1806 and/or B1810 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connection between the power seat control unit and the MICU.

5. Check for DTCs with the HDS.

Are DTCs B1055, B1157, B1255, B1605, B2107, B2155, and/or B2156 also indicated?

YES - Do the MICU input test.

NO - Do the power seat control unit input test.