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From the material you will learn how a PWM signal-controlled fan works. I will talk about popular faults and how to diagnose them using different methods. 00:00 Introduction 00:20 Intro 00:35 A few words about the test car 01:15 Discussion of the electrical diagram 03:33 Different types of fans and faults resulting from their design 05:30 What measurements to perform for different faults 08:55 Measurements using a light bulb 14:50 Tests using an oscilloscope 27:53 Summary Registration for the training is available at: https://autonomis.pl/sklep Test lamp - OTC 3633 - https://amzn.to/3joC9J3 Tester Launch X431 Mini - https://amzn.to/2VoS3ew