Vauxhall Signum Horn Problems

Problems mentioning the Horn on the Vauxhall Signum
When the sun comes out the alarm activates
2007 1.9 turbo diesel elite
Posted: Jul 18, 2012
1
reply
Heated front seats
2006 2.2 elite auto
Posted: Feb 24, 2015
1
reply
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What problems can be caused by a faulty Horn?

Horn not working

When pressing the horn on the steering wheel no sound comes out. Sometimes there is a very weak sound from the horn.

Horn sounds strange

When pressing the horn the sound isn't as it used to be, the sound can be weak and sound more screeching than before.