B1810
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. Check for DTCs with the HDS.
Is DTC B1810 indicated?
YES - Go to step 4.
NO - Intermittent failure, the communication line is OK at this time.
4. Check for DTCs with the HDS.
Is DTC B2156 also indicated?
YES - Go to the MICU input test. MICU Input Test
NO - Go to the power seat control unit input test. Power Seat Control Unit Input Test