P209A OBD-II: Reductant Injection Air Pressure Sensor "B" Circuit
Get diagnosis and repair information for trouble code P209A
OBD II Fault Code
- OBD II P209A
OBD-II Code Powertrain Control Module (PCM) failure is defined as a Reductant Injection Air Pressure Sensor "B" Circuit
Code P209A 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 P209A Code
- Powertrain Control Module (PCM) failure
- Reductant air pressure sensor
- Wiring issue
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