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Our automotive experts have put together the following information about the P240C 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 P240C code.

OBD II Fault Code

  • OBD II P240C

    OBD-II Code Powertrain Control Module (PCM) software needs to be updated is defined as a Evaporative Emission System Leak Detection Pump Heater Control

    The DTML Pump pressurizes the fuel tank to check for leaks when the vehicle is off. If this pump fails, code P240A will be set.

    Common Problems That Trigger the P240C Code

    • DMTL pump failure
    • Powertrain Control Module (PCM) software needs to be updated
    • Wiring issue
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