DTC B1010 Hummer
MICU Lost Communication with Door Multiplex Control Unit (Panic Message)
MICU Lost Communication with Door Multiplex Control Unit (Panic Message)
Description
Poor communication between the MICU, and the Door Multiplex Control Unit. NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause and Solution
Faulty battery condition and or charging system
Loose or poor connection at door multiplex connector, and at under-dash fuse relay box connector
Perform the Door Multiplex Control Unit Input Test
Open circuit between the MICU and the door multiplex control unit
Faulty MICU
Video Guide
Diagnostic Info
- DTC Code: B1010
- Brand: Hummer