Right lads, my 197 failed its MOT on a few things (7 to be exact), I've managed to fix them all bar one: the horn. Normally I wouldn't care (its just one of those Renault things) but I need it through the MOT. The horn itself is fine as I have tested it off the car, but there is no power to it. The switch on the steering wheel seems fine, contacts ok and immediate wiring is ok. Fuse is intact. Checked the clock spring cable in the squib, seems fine. Only thing i haven't checked is if there is 12v at the fuse... Does anyone have any ideas? Is there a relay for it? At this point I'm thinking of just wiring up my own switch on the dash and running a new wire to it just to pass the MOT as its driving me insane. Especially as i have already spent weeks sorting all the other problems (x2 ball joints, shocks, brake rebuild etc etc etc.). The buttons for the trip computer also do not work and I have swapped the stalk all to no avail (couldn't be that simple could it), not sure if this could be related?