Our automotive experts have put together the following information about the P0A37 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 P0A37 code.

OBD II Fault Code

  • OBD II P0A37

    OBD-II Code High voltage system may not operate is defined as a Generator Temperature Sensor Circuit Range/Performance

    The Hybrid Motor Temperature Sensor is built into the Hybrid Motor Assembly. When a failure is detected in the Hybrid Motor Temperature Sensor circuit, the engine control module (PCM) will set code P0A37.

    High voltage system may not operate Symptoms

    • High voltage system may not operate

    Common Problems That Trigger the P0A37 Code

    • High voltage motor failure
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