Honda ACCORD HYBRID 2005 Service Manual page 1791

DTC B1001, B1002: Multiplex Integrated
Control Unit (MICU) Internal Error
1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF and then back ON.
3. Operate the door lock (LOCK/UNLOCK).
4. Check for DTCs using the HDS.
Is DTC B1001 or B1002 indicated?
YES—Faulty MICU; replace the under-dash fuse/
relay box. •
NO—Intermittent failure, the MICU is OK at this
time. Check for loose or poor connections. If the
connections are g o o d , check the battery condition
(see page 22-71) and the charging system. •