Board logo

Non KC - Crazy Astra Horn Problem
londonsean69 - 30/11/09 at 08:49 AM

Morning

My Astra (MK3 2.0 Sport) decided to have a fit at 4.45am this morning. The horn just started blaring.

Took me a while to realise it was my car, so shot downstairs and out into the p155ing rain, in me boxers

I thought it must have been the alarm, but was able to disarm and arm the alarm with no effect on the horn.
In fact, at one point I managed to set the alarm, then open the door. Alarm started going off as well (By now I was waiting for a neighbour to start chucking housebricks)

In deperation I popped the bonnet, about to cut cables/pull fuses, at which point it just stopped.

Any Ideas?
*I didn't think it was connected to the alarm system (Clifford) but am trying to get a copy of the user manual
*Possible short circuit because of rain?
*Crap car

It started and ran fine for the run in to work this morning


Mr Whippy - 30/11/09 at 08:57 AM

My old cavalier had a factory alarm that used the main horn, you may have that too


londonsean69 - 30/11/09 at 09:08 AM

quote:
Originally posted by Mr Whippy
My old cavalier had a factory alarm that used the main horn, you may have that too


As well as the Clifford?

Seems strange, because I don't have any sort of fob except the Clifford. I'll have to get me head in the wiring diagrams in the Haynes Book of lies


02GF74 - 30/11/09 at 09:09 AM

quote:
Originally posted by londonsean69
*Possible short circuit because of rain?


that would be my reaction. aren't horns wired permanently live? so some moisture on the esrth wire may have been enough to complete the cricuit.

get to the horn, remove both push on connectors and spray WD40 or apply vaseline and then fit back on making sure they re on tight.

test horn.

it it ewasd alarm, did not the siren go off and indicators flash too?


londonsean69 - 30/11/09 at 09:22 AM

quote:
Originally posted by 02GF74
quote:
Originally posted by londonsean69
*Possible short circuit because of rain?


that would be my reaction. aren't horns wired permanently live? so some moisture on the esrth wire may have been enough to complete the cricuit.

get to the horn, remove both push on connectors and spray WD40 or apply vaseline and then fit back on making sure they re on tight.

test horn.

it it ewasd alarm, did not the siren go off and indicators flash too?


It was my first thought. Actually, it was my second, the first was "Shut the f**k up"

I did have an M25 run last night, and it was lashing down.
But, the car was parked up by 11pm, and this didn't happen till 4.45am, so maybe seeped in somewhere.

The horn was continuous, with no indicators flashing, which makes me think it wasn't a factory alarm.

The indicators did flash when I set/reset the Clifford.

I've got some proper contact cleaner, so will give it a swizz later. The horn was fine on the way to work though, I did give it a little toot to test it.

I think I might sling a letter into my neighbours houses later, because it took me a few minutes to get it to shut up.


dhutch - 30/11/09 at 01:54 PM

Do nothing, unless it does it again?

Engine light came on on the pug a week ago after vigous run though the rain and floods, not seen in since, runs fine. Sod it!


Daniel


dhutch - 30/11/09 at 01:54 PM

Also try astra forums to see its its common and if its likely to reoccur?