B1812

DTC B1812: Power Seat Control Unit Lost Communication with Driver's MPCS Unit (MEM SW 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 B1812 indicated?

YES - Go to the Power Seat Control Unit Input Test. Power Seat Control Unit Input Test

NO - Go to the Driver's MPCS Unit Input Test. Driver's MPCS Unit Input Test