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OBD II Fault Code

  • OBD II P2038

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

Code P2038 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 P2038 Code

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