Set Condition
WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
The EVCU detects an open, short to ground, or short to voltage on the Power Electronics Cooling Pump Enable circuit.
NOTE:
If a low or discharged 12 volt battery condition is observed, the Power Electronics Cooling Pump Enable Circuit could be shorted to voltage causing the Power Electronics Cooling Pump to run constantly.