Horn Not Working, Fuse, Relay, Ground & Voltage Check, Toyota Corolla 2014, 2015, 2016, 2017, 2018

Diagnosing a non-working horn on a 2014-2018 Toyota Corolla. We'll check the Fuse and Relay, and then check the voltage at the horn connector.
Then we'll check the ground to horn connection, as well as the voltage coming to the horn using a voltmeter.

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Timestamps
00:00 Horn System Overview
00:15 Horn Fuse and Relay Check
01:41 Horn Connection and Voltage Test
02:47 Ground Connection Test

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