DTC B1006 Hummer

MICU Lost Communication with Door Multiplex Control Unit (Door Lock Switch Message)

MICU Lost Communication with Door Multiplex Control Unit (Door Lock Switch 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 or charging system
Open or Short to power or ground in the communication circuit between the MICU and the door multiplex control unit
Faulty door multiplex control unit
Faulty MICU.

Video Guide

Duration: PT4M14S | Uploaded: 2020-05-02

Diagnostic Info

  • DTC Code: B1006
  • Brand: Hummer
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