Our automotive experts have put together the following information about the P0A93 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 P0A93 code.

OBD II Fault Code

  • OBD II P0A93

    OBD-II Code High voltage system may overheat is defined as a Inverter "A" Cooling System Performance

    The Inverter for the hybrid system utilizes a separate cooling system to maintain proper operating pressure. If the High Voltage Control Module detects an issue with the cooling system for the hybrid system, it will send a message to the engine control module (PCM) to set code P0A93.

    High voltage system may overheat Symptoms

    • High voltage system may overheat

    Common Problems That Trigger the P0A93 Code

    • Coolant system leak in the hybrid cooling system
    • High voltage coolant pump failure
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