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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 >> P1E14-00-Cooling Fan Module Over Temperature >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different variant/trim than selected.

The Electric Vehicle Control Unit (EVCU) sends a Pulse-Width Modulated (PWM) signal to the Radiator Fan Module to control speed.