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Horn works but alarm does not chirp when armed

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When I bought my MY99 Boxster the car failed inspection due to horn not working. Horn was replaced by local independent shop but there is no chirp when the alarm is armed. Any idea what is going on?

Also, I have never setoff the alarm so I'm not sure the horn works for that either. Is there a way to setoff the alarm via the key remote (like the panic button VW has on their remotes).



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Your car has two different horn systems. One horn for just the alarm system and a pair (2) of horns that are used via the steering wheel press.

The alarm horn is not supposed to chirp (Porsche alarm systems) when set. If it chirps once that means one of more alarm zones are "open". If it chirps twice then that means there is a fault in the alarm system.

Your cars alarm sounds like it is working properly.

Best check the fuse and then horns (behind the front bumper) for the steering wheel activated warning horn.

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Steering wheel press works fine. I'm used to getting a arming chirp with my non-Porsche cars so I assumed it did too.

Will try arming the alarm with one of the doors open and see if it chirps then.



Edited by UtahWJR
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  • 2 weeks later...
  • 1 month later...

So the contents of the arm rest do not get looted with the car is parked with the top down.................

Yes, and if the alarm chirp told you whether the glove compartment or armrest was locked when the top was down, that would be useful.

But it does not. It simply let's you know if it is latched - which isn't any better than unlatched if it is unlocked. Therefore, it's useless.

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