DTC B1811: Power Seat Control Unit Lost Communication with Driver's MPCS Unit (DOORSW Message); DTC B1812: Power Seat Control Unit Lost Communication with Driver's MPCS Unit (MEMSW Message)
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Turn the ignition switch OFF, and then back ON (II).
- Wait for 6 seconds or more.
- Check for DTCs with the HDS.
Is DTC B1811 and/or B1812 indicated?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections between the power seat control unit and the driver's MPCS unit.
- Check for DTCs with the HDS.
Are DTCs B1014, B1064, B1181, B1405*, B1406*, B1613, and/or B1812 also indicated? (* : '05-06 models)
YES - Do the driver's MPCS unit input test (see DRIVER'S MPCS UNIT INPUT TEST ).
NO - Do the power seat control unit input test (see POWER SEAT CONTROL UNIT INPUT TEST ).