Horn alarm

Stevo19677 · Aug 11th, 2020, 17:17

All,
Have 88 240 glt whose horn goes off if you don’t get the key in the ignition within 10 secs. Also goes off if the door isn’t shut properly. Any advice on how to turn it off. Thanks.

loki_the_glt · Aug 11th, 2020, 17:51

It seems that you've got an aftermarket alarm fitted (badly).

Pull the fuse for the interior light, then try re-arming the alarm system. If the horn doesn't go off you've found the circuit it's been piggy-backed to and will then have to methodically trace the alarm wiring.

If there's a horn under the bonnet - not between the grille and the radiator - that's for the alarm system so you should be able to follow the wiring, unless the fitter taped it into the factory loom.

Good luck. Oh, and put on a pair of ear defenders!

Stevo19677 · Aug 11th, 2020, 22:47

Loki,
Thanks. Hopefully it is a separate horn. Will have a look.

Aug 11th, 2020, 17:17	#1
Stevo19677 New Member Last Online: Feb 14th, 2022 15:38 Join Date: Jun 2020 Location: Glasgow	Horn alarm All, Have 88 240 glt whose horn goes off if you don’t get the key in the ignition within 10 secs. Also goes off if the door isn’t shut properly. Any advice on how to turn it off. Thanks.

Aug 11th, 2020, 17:51	#2
loki_the_glt Torquemeister Last Online: Apr 22nd, 2024 11:43 Join Date: Dec 2004 Location: Asgard, Cheshire	It seems that you've got an aftermarket alarm fitted (badly). Pull the fuse for the interior light, then try re-arming the alarm system. If the horn doesn't go off you've found the circuit it's been piggy-backed to and will then have to methodically trace the alarm wiring. If there's a horn under the bonnet - not between the grille and the radiator - that's for the alarm system so you should be able to follow the wiring, unless the fitter taped it into the factory loom. Good luck. Oh, and put on a pair of ear defenders! __________________ loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4.

Aug 11th, 2020, 22:47	#3
Stevo19677 New Member Last Online: Feb 14th, 2022 15:38 Join Date: Jun 2020 Location: Glasgow	Loki, Thanks. Hopefully it is a separate horn. Will have a look.

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