Help.GT Horn not working and failed MOT!!!! - Alfa Romeo Forum
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Help.GT Horn not working and failed MOT!!!!

Hi Guys,

My Alfa failed its MOT as horn wont work

I cant find manuel so dont know what fuse number as there's no diagram on the fuse box itself, typical of alfa!!!!

Can anyone help and if it isnt fuse is it likely to be the switch on steering and is it an expensive job?

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if it's the same as the 147, the horn fuse 15 amp and in the fuse box beside the battery, also take a look at this and see if it helps.
How to cure the horn push on an Alfa 156/147 and GT
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I noticed the horn on my GT had stopped the other day, and after consulting this forum I checked the options.
A quick look under the bonnet revealed that I couldn't get my hands down in the available space without dismantling a lot of other periphery, so I cut straight to the circuit board.

I positioned the steering wheel to give me access to the three 5mm Allan screws and took the key out before dismantling. Everything came out without a hitch, and on examining the circuit board I could see no evidence of corrosion at all. Having dismantled, I went ahead with the bypass operation anyway, and on re-assembly the horn worked again. Great piece of information, but got to say I'm at a loss as to why it should fail in the first place!
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My horn stopped working last year, I took the airbag unit off and packed the pressure points with a bit of cardboard and it worked a treat. Bit of a botch but effective all the same
Might be worth a try.
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