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Our automotive experts have put together the following information about the P040F 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 P040F code.

OBD II Fault Code

  • OBD II P040F

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Exhaust Gas Recirculation Temperature Sensor "A"/"B" Correlation

    An Exhaust Gas Recirculation (EGR) Temperature Sensor is an electrical sensing probe that monitors EGR temperature and transmits the signal to the engine control control module. When the engine control module (PCM) detects an incorrect signal from the EGR Temperature Sensor, the PCM will set code P040F.

    Common Problems That Trigger the P040F Code

    • EGR temperature sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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