B1806
DTC B1806: Power Seat Control Unit Lost Communication with MICU (MICU 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 B1806 indicated?
YES - Go to step 4.
NO - Intermittent failure. The driving position memory system is OK at this time. Check for loose or poor connections at the power seat control unit connector, and at the MICU connector.
4. Check for DTCs with the HDS.
Are DTCs B1055, B1106, B1157, B1255, B1355, B1556, B1955, B2005, and/or B2055 also indicated?
YES - Do the MICU input test.οΏ½
NO - Do the power seat control unit input test.
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 B1806 indicated?
YES - Go to step 4.
NO - Intermittent failure. The driving position memory system is OK at this time. Check for loose or poor connections at the power seat control unit connector, and at the MICU connector.
4. Check for DTCs with the HDS.
Are DTCs B1055, B1106, B1157, B1255, B1355, B1556, B1955, B2005, and/or B2055 also indicated?
YES - Do the MICU input test.οΏ½
NO - Do the power seat control unit input test.