Factory fitted alarm horn

[dan1w]

Just discovered I've got a factory fitted alarm after 8 months. However it only sets off the hazards and not the horn.

The vauxhall security booklet I've got says the alarm uses a seperate horn. If it is the horn that's broken, would I be able to swap it with this?

<a href="http://cgi.ebay.co.uk/12-volt-SIREN-electronic-horn-CAR-ALARM-etc-BNIB_W0QQitemZ7609246753QQcategoryZ8258QQssPageNameZWDVWQQrdZ1QQcmdZViewItem" target="_blank">http://cgi.ebay.co.uk/12-volt-SIREN-electr...1QQcmdZViewItem</a>

Also, does anyone know how to read the alarm fault codes?

Cheers,

Dan

[wilkybar-kid]

the horn is situated towards the rear of the engine bay for the alarm, you will more than likley find someone has disconected it. But, I wouldent have thought that you could put that siren on there as a replasment as the horn beeps, surgesting that it is not a continuas flow of electrisaty.

[dan1w]

Would there not be a relay somewhere that I could remove?

[Fraz]

and codes

Fault codes can be read out of the Alarm by shorting pins A and H.

The code is flashed out on the ultrasonic led.
The Ultrasonic button clears the codes.

18 Fault with disarm signal
25 Horn Voltage Low Horn O/C or fuse blown
26 Indicator Left open circuit
27 Indicator Right open circuit
28 Ultrasonic driver side open circuit or incorrect voltage
29 Ultrasonic passenger side open circuit or incorrect voltage
32 Boot caused an alarm condition
33 Bonnet caused an alarm condition
34 Doors caused an alarm condition
35 Ignition Turned on caused an alarm condition
36 Imbolization circuit open circuit (starter circuit triggered causing alarm)
37 Radio caused an alarm condition
38 Ultrasonic's caused an alarm condition
39 Fault with disarm signal. (central locking fuse blown) (causing alarm condition)
40 Two alarm triggers at the same time.
41 Spare alarm input caused alarm condition (pin 14)
46 Rear Window smashed caused an alarm condition ('92+ models only)
52 Horn Voltage Low Horn O/C or fuse blown
55 ECU fault

[dan1w]

Cheers, but where do I find the pins?!?!

[Rusty_CallyT]

top right corner of the engine bay theres a plug and a horn, its that plug you want

[dan1w]

Nice one, ta