What Is P003A Code On Dodge Cummins? (How to Fix It)
What Is P003A Code On Dodge Cummins? (How to Fix It) Cummins. The P003A OBD-II fault code indicates that the engine's Electronic Computer Module (ECM) has identified a problem with the turbocharger or supercharger systems, especially values that are outside of allowable limits for the engine's boost. This can occur due to a variety of ...