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Our automotive experts have put together the following information about the P20CC 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 P20CC code.

OBD II Fault Code

  • OBD II P20CC

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Exhaust Aftertreatment Fuel Injector "A" Control Performance

    Diesel Exhaust Fluid (DEF) is used to assist in converting leftover exhaust particles to harmless gases. In order to burn off those particles, the temperature of the exhaust system needs to increase. the injection of DEF Fluid into the exhaust stream brings Diesel Particulate Filter (DPF) up to temperature. The system is then able to convert harmful NOx to Nitrogen, Carbon Dioxide, and water. If DEF Injector fails to operate properly, code P20CC will set.

    Powertrain Control Module (PCM) failure Symptoms

    • DPF regeneration may not occur

    Common Problems That Trigger the P20CC Code

    • DEF injector failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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