F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
Horn: Description and Operation
HORN
NOTE: The smart junction box (SJB) is also known as the generic electronic module (GEM).
The horn system consists of the following components:
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Horn switch (part of the driver air bag module)
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Clockspring
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Horn relay (part of the SJB)
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Horn
For removal and installation of the driver air bag module, refer to Air Bag Systems.