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Home >> Fiat >> 2018 >> 500 Lounge, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Electric Vehicle Control Unit (EVCU) Module - DTCS P1139-00 To U1487-00 - 500 - Electric) >> DTC Troubleshooting >> P1DBA-00-Battery Cooling System Failure >> Theory Of Operation

Theory Of Operation

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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.