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Home >> Fiat >> 2016 >> 500 Turbo, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (Electric Vehicle Control Unit (EVCU) Module - DTCS P1139-00 To U1487-00 - 500 - Electric) >> DTC Troubleshooting >> P1CF8-00-Battery Heating System Failure >> Theory Of Operation

Theory Of Operation

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 provides rationality checks for the Battery Pack thermal system. The EVCU sends commands to the Battery Pack and will then monitor Battery Pack CAN data messages for the proper expected result for a given command.