Thanks for the advice So far, I have tried setting the alarm with the door open (as suggested) and the horn does operate (sounds like two tones to me but can't be certain). I have tried the brake pedal and all three brake lights operate correctly. I also looked at the Hill decent switch...

I have a 2002 Freelander TD4 The horn is completely dead. I have checked fuses - OK. The dashboard lights for Traction Control and Hill Decent luminate randomly when driving. (This could happen daily or not at all for a few weeks!) Any ideas if the two probs are related. Grateful...