P1EF5 CADILLAC - Battery Charger Input Voltage Conditioner Temperature Too High
P1ef5 Cadillac DescriptionThe battery charger uses a liquid cooled cooling system which is cooled from the front of the vehicle. The hybrid electronic cooling system needs to be functioning properly for the battery charger to be able to meet its temperature requirements.
The hybrid/EV powertrain control module 2 monitors the battery charger temperature and verifies it is within its proper operating range. There is a temperature sensor that measures the overall temperature of the battery charger. Also, there are battery charger internal temperatures sensors that monitor for over-temperature conditions, that are for the voltage converter 1, voltage converter 2 and the voltage conditioner within the battery charger.
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