The Engine Control Module (ECM) continually checks that the engine is working properly, intending to ensure that the engine’s power output is at its best. To achieve this, it uses actuators and sensors, which help to determine whether the engine is working within the parameters set by the manufacturer.
In the case of fuel injectors, they are electronic devices that are responsible for entering the fuel into the manifold or cylinder. The power of these components of the combustion system is controlled by the ECM. While the power stroke of each of the cylinders is running, the ECM proceeds to check that the injectors are performing properly. If the P0269 OBDII fault code is set, it is because the ECM detected that cylinder 3 has had a problem delivering fuel to it.
This is a generic code, so it is kind of normal to all manufacturers. The source of the fault code could be the same one, however, the manufacturer of a specific model may experience a defective part or it could be an installation error.