DTC P1574 (68): Battery Module Temperature Signal Circuit Malfunction: General Description

When the battery module temperature is a specified value or more in the power save mode, the battery module temperature decreases if the battery module cooling system is normal. The stabilization of the battery module temperature sensor at a medium temperature is detected by comparing the battery module temperature decrease over a specified time to a specified value. Similarly, when the battery module temperature is a specified value or less in the power save mode, the battery module temperature increases if the battery module heating system is normal. The stabilization of the battery module temperature sensor at a medium temperature is detected by comparing the battery module temperature increase over a specified time to a specified value. If the change in battery module temperature is a specified value for a set time, a malfunction is detected and a DTC is stored.