DTC C1268-7A: Circuit Leak Fail: General Description
WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.
The pressure sensor is installed in the Integrated Electronic Brake (IEB) module, the sensor data converts the brake pressure to judge the driver's brake intention when the ESC/DBC/AVH program is operated. When pressure is applied to the sensor, the resistance of the sensor's strain gauge changes. The change in resistance changes the voltage output from the sensor.