DTC P2196: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1): DTC Detecting Condition

DTC Description, the ECM monitors the sensor characteristic line of front HO2S signal and sets DTC P2196 if the sensor characteristic line has a shift to rich. If the same error code is set in the next driving cycle, the ECM illuminates the MIL.
Conditions for Setting the DTC

Fig 1: DTC P2196 Condition Chart
Courtesy of KIA MOTORS AMERICA, INC.