OBD II Fault Code

  • OBD II P0B30

    OBD-II Code High voltage system may not operate is defined as a Hybrid Battery "D" Voltage Unstable

    The high voltage battery is composed of many individual battery cells. The Battery Energy Control Module (BECM) monitors all the cells in the high voltage battery pack to make sure they are all contributing equally to the high voltage system. If one cell is determined to be unequally contributing, code P0B30 will be set.

    High voltage system may not operate Symptoms

    • High voltage system may not operate

    Common Problems That Trigger the P0B30 Code

    • Battery Energy Control Module (BECM) failure
    • High voltage battery assembly failure
    • Wiring issue

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    By , July 03, 2017
    P0B30 Hybrid Battery Voltage Sensor "A" Circuit Low How is this repaired