The diagnostic code P0132 OBD2 refers to the Oxygen Sensor (O2) number 1 which is located in bank number 1. Basically, it indicates that the Oxygen Sensor (O2) reading is above the normal range, This sensor for a long time has had too high a voltage and does not switch over again. This diagnostic code must be attended to very quickly, because if it remains on for a long time, the 3-way Catalytic Converter (TWC) can get damaged.