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OBD II Fault Code

  • OBD II P209E

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Reductant Injection Air Pressure Sensor "A"/"B" Correlation

    Code P209E is set when an issue is detected with the Reductant Injection Air Pressure Sensor. This sensor is part of the Reductant (DEF) System.

    Common Problems That Trigger the P209E Code

    • Powertrain Control Module (PCM) failure
    • Reductant air pressure sensor
    • Wiring issue

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