DTC P1BD2-12: Battery Coolant Level Sensor Circuit High: 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.
Battery coolant level sensor is a sensor that detects leakage of coolant from a battery pack and send this coolant leak signal to the BMU. One each on the left and one on the right side of the battery pack.