Power Seat Control Unit Lost Communication with MICU (DOORSW Message)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B1806, B1810, and/or B1811 indicated?
YES -
Go to step 5.
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connection between the power seat control unit and the MICU.?
5. Check for DTCs with the HDS.
Are DTCs B1055, B1057, B1157, B1159, B1255, B1355, B1955, B2155, B2156, and B2161 also indicated?
YES -
Do the MICU input test See: Powertrain Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests
and General Diagnostics/MICU Input Test.?
NO -
Do the power seat control unit input test See: Body and Frame/Relays and Modules - Body and Frame/Power Seat Control Module/Testing and
Inspection/Power Seat Control Unit Input Test.?
B1808
DTC Troubleshooting: B1805, B1808
DTC B1805:
Power Seat Control Unit Lost Communication with Gauge Control Module (VSP/NE Message)
DTC B1808:
Power Seat Control Unit Lost Communication with Gauge Control Module (A/T Message)
NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A See: Powertrain
Management/Computers and Control Systems/Information Bus/Testing and Inspection/Component Tests and General Diagnostics/Troubleshooting
- B-CAN System Diagnosis Test Mode A.
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Is DTC B1805 and/or B1808 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 gauge control
