Our automotive experts have put together the following information about the P0A7B diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0A7B code.

OBD II Fault Code

  • OBD II P0A7B

    OBD-II Code High voltage system may not operate is defined as a Battery Energy Control Module Requested MIL Illumination

    Code P0A7B indicates there is a fault in the high voltage system that requires further diagnostics. Additional codes may be stored in other control modules.

    High voltage system may not operate Symptoms

    • High voltage system may not operate

    Common Problems That Trigger the P0A7B Code

    • Further diagnostics of the hybrid system is required
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