DTC B1807: Power Seat Control Unit Lost Communication with MICU (DOOR SWITCH 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 to LOCK (0), and then back to ON (II).
- Check for DTCs with the HDS.
Is DTC B1807 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.
- Check for DTCs with the HDS.
Are DTCs B1057, B1105, and/or B1159 also indicated?
YES - Do the MICU input test (see MICU INPUT TEST ).
NO - Do the power seat control unit input test (see POWER SEAT CONTROL UNIT INPUT TEST ).