B1811

DTC B1811: Power Seat Control Unit Lost Communication with Driver's MPCS Unit (DOORSW 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 B1811 indicated?

YES - Go to step 4.

NO - Intermittent failure, the communication line is OK at this time.

4. Check for DTCs with the HDS.

Are DTCs B1014, B1064, B1181, B1405, B1406, and B1613 also indicated?

YES - Go to the driver's MPCS unit input test. Driver's MPCS Unit Input Test

NO - Go to the power seat control unit input test. Power Seat Control Unit Input Test