Theory Of Operation
WARNING: This page is about a different car, the 2014 Fiat 500e. However, it is still accessible from the selected car via links, so may be relevant.
A temperature sensor located within the power electronics cooling loop is utilized to monitor the performance of the cooling loop. This information is supplied to the EVCU for thermal strategy operation. The EVCU will control the coolant pump speed based upon the cooling system needs, and operate the front module cooling fan when necessary.