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Home >> Honda >> 2002 >> Insight Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Multiplex Integrated Control System) >> DTC Troubleshooting >> DTC B1001: MICU CPU Error

DTC B1001: MICU CPU Error

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
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  ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch OFF, and then back ON (II).
  3. Operate the door lock (LOCK/UNLOCK).
  4. Check for DTCs with the HDS.

    Is DTC B1001 indicated? 

    1. YES  - Faulty MICU; replace the driver's under-dash fuse/relay box.
    2. NO  - Intermittent failure, the MICU is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition (see BATTERY TEST ) and the charging system.