mot on friday and no horn

[spyschim]

help my horn has decided to stop working two days before mot, is that a fail ? i have checked both horns ,doesnt seem to have any juice getting to them , earthed horn button , no luck checked fuses and relays no probs there taken dash apart but cant find anythink loose or disconected ! help is needed

[tvrbob]

It's normally the earth contact rings on the button. You say power is getting to the horn but if you're measuring that with a digital meter it may be that there is sufficient current to drive the meter but insufficient to drive the horns, that again tells me the fault is in with the button contacts. If you connect the wire from the centre of the steering wheel directly to an earth (e.g. the outer part of the cig lighter) that will prove whether or not the fault is at the button end.

[spyschim]

disconected button connected wire directly to earth while i checked everything just in case i knocked a loose connection ,no luck there

[Ribol]

Yes it is a fail.

Are you sure the horn relay itself in the fusebox is working? My car certainly has one, not sure if they all do though? Can you hear any clicks from fusebox area when you press horn button?

[Littletidnock]

Have you checked if the horns work with a direct feed?

[tvralfagtv6]

this used to be a very common problem , in short the horn relay gets dislodged by the foot board, resting on it , worth checking

[over_the_hill]

I had a similar problem a few years ago.

Check all fuses and relays are pushed firmly into the fuse board.
Also do not assume the fuse that you think is the horn is in fact the fuse, despite what it says in the handbook or bible.
Or put another way, check all fuses because it could be any of them and not the one listed.

[spyschim]

guys thanks for input its on hold for a while as ive been in hospital all day the wife collapsed today poss heart attack 39yrs old ,allready 2 major heart opp,s .tiv on back burner for a while!

[Ribol]

spyschim said:

guys thanks for input its on hold for a while as ive been in hospital all day the wife collapsed today poss heart attack 39yrs old ,allready 2 major heart opp,s .tiv on back burner for a while!

Kind of puts car problems into perspective, wish her well, hope she make a full recovery ASAP

[coetzeeh]

Simon, sorry to hear about the missus - hope you guys get through this ok.

Henk