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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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