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Wiring for Sierra horn
https://auszookers.com/forum/viewtopic.php?f=5&t=31985
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Author:  holdenrules [ Sat Apr 21, 2012 7:25 am ]
Post subject:  Wiring for Sierra horn

Hey all I got a 84 lwb Sierra and my horn won't work. Any onee know where the relay is for them as I can't seem to find it. Replaced the horn for a new one so has to be wiring. Any help would be great. Cheers

Author:  sogone [ Sat Apr 21, 2012 7:34 am ]
Post subject:  Re: Wiring for Sierra horn

Does the horn have a fuse? There's only 6 fuses in a 1 liter? I'd try there.

Author:  holdenrules [ Sat Apr 21, 2012 8:21 am ]
Post subject:  Re: Wiring for Sierra horn

Checked all fuses and yes there's only 6 in the 1 liters but none are for the horn.

Author:  sogone [ Sat Apr 21, 2012 9:12 am ]
Post subject:  Re: Wiring for Sierra horn

Stupid question. Have you got the ignition turned on? My horns in the 1 liters won't work unless ignition is on.

Author:  want33s [ Sat Apr 21, 2012 11:21 am ]
Post subject:  Re: Wiring for Sierra horn

There is no relay for the horn.
It has constant power to the horn and is activated by earthing at the steering wheel.
Check you have power at the horn.
Check you have continuity to earth.

The problem is most likely the contact at the back of the steering wheel.

Author:  royce [ Sat Apr 21, 2012 11:25 am ]
Post subject:  Re: Wiring for Sierra horn

or the steering shaft uni, or rag joint, dont think 1 litres had the earth bypass wire on them like later ones

Author:  BlueSuzy [ Sat Apr 21, 2012 11:27 am ]
Post subject:  Re: Wiring for Sierra horn

Mine used to come and go. It was weird. Must of been the contacts.

It was better when it wasnt working. Offroad, hit a bump, bip! Hi! :hey:

Author:  SierraDan [ Sat Apr 21, 2012 11:33 am ]
Post subject:  Re: Wiring for Sierra horn

My mate with the army green hilux's horn does that haha.

Author:  whincup [ Sat Apr 21, 2012 5:26 pm ]
Post subject:  Re: Wiring for Sierra horn

i added a relay for my horn in my old sierra. used the original 2 horn wires as the relay trigger. upgraded to a horn i pulled from something from the wreckers, think it might have been an old falcon.,and wasnt sure if standard wires could handle it.

first things first, use a multimeter to check that its getting power first... im in gracemere and im free tomorrow, happy to lend a hand if needed.

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