Hi

I have a mondeo st 2017. Just been out to the car, gained entry,

but as soon as i pushed the ignition button the car starts and

the horn goes off. The only way I can turn the horn off is by

turning the engine back off ?? Any idea what the cause is ?

Cant find any info .

thanks 

Don't know what the cause is but give the horn push on steering wheel a move around. If the horn won't stop, you can temp pull the fuse 48 in the battery fuse box to stop it until you get it fixed. 

Thanks Ian

Not sure if it is the alarm. Is the alarm continuous as well ?

 

Dont know if anything to do with it, but I also have seen a 

message that I havent seen before. Interior scan, press ok to

de activate ?? help

35 minutes ago, Burtieboy said:

Dont know if anything to do with it, but I also have seen a 

message that I havent seen before. Interior scan, press ok to

de activate ?? help

That message appears every time you switch engine off if that option is enabled in the instrument cluster.

To check if it's the alarm horn or ordinary horn going off ,just switch ign on and press horn push to see if it's the same or extra horn sounds.