Our automotive experts have put together the following information about the P0C0A 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 P0C0A code.

OBD II Fault Code

  • OBD II P0C0A

    OBD-II Code High voltage system may not operate is defined as a Drive Motor "B" Phase U-V-W Circuit High

    The Drive Motor Generator Power Inverter Control Module consists of two Motor Control Modules and the Hybrid Powertrain Control Module. Because the two Motor Control Modules are wired together, the current flowing through both modules should be the same. If they are not, code P0C0A is set. The High Voltage System will be disabled.

    High voltage system may not operate Symptoms

    • High voltage system may not operate

    Common Problems That Trigger the P0C0A Code

    • Drive motor generator assembly failure
    • Drive motor generator power inverter control module failure
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