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Our automotive experts have put together the following information about the P2037 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 P2037 code.

OBD II Fault Code

  • OBD II P2037

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

    Code P2037 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 P2037 Code

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