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Our automotive experts have put together the following information about the P0C3B 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 P0C3B code.

OBD II Fault Code

  • OBD II P0C3B

    OBD-II Code DC/DC Converter Temperature Sensor "A" High is defined as a DC/DC Converter Temperature Sensor "A" High

    The Motor Generator (MG) control module is part of the Inverter/Converter Assembly. Built into this control module is a temperature sensor so that the MG control module can regulate the operating temperature of the Inverter/Converter Assembly from overheating. If this sensor fails, code P0C3B will set.

    DC/DC Converter Temperature Sensor "A" High Symptoms

    • High voltage system temperature light may be illuminated

    Common Problems That Trigger the P0C3B Code

    • Inverter/converter assembly failure
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