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OBD II Fault Code

  • OBD II P0A28

    OBD-II Code High voltage system may not operate is defined as a Hybrid Battery Power Off Circuit Low

    The High Voltage Battery is not functioning correctly, code P0A28 will be set.

    High voltage system may not operate Symptoms

    • High voltage system may not operate

    Common Problems That Trigger the P0A28 Code

    • High voltage battery assembly failure
    • Wiring issue
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