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How to Test the Cabin Fan Resistor

Model: (Various brands) Various
Part: Blower motor

Video tutorial

In this video, see how to test the functionality of the resistor that controls the cabin fan. Usually, a broken resistor has a break in the electrical circuit, which can be checked using a multimeter to verify the distance between the points marked in the video as "A" and "D". If you do not have a multimeter, a tester and a bulb will suffice.

The electrical diagram provided by the YouTuber is helpful; naturally, some basic knowledge of electronics is required to perform this test, but it should not be a problem for DIY enthusiasts.


Updated on 26 October 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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