It is important to have a horn working for safety reasons. If the fuse or relay is working then it would be best to check the clock spring behind the vehicles steering wheel.
I think the Punto has electric power steering, so no fluid.
Fiat punto power steering reservoir on a y reg were can i find it
fiat punto's dont have steering fluid. they have electric motors instead.
remove cover from centre of steering wheel and you will see a nut undo it while holding onto the steering wheel with one hand and undo then pull the wheel towards you giving it a bit of a wiggle.
it is on the steering column below the steering wheel
head off shims out buckets out and valve spring compressor remove collets and remove valves.
en punto. one o'clock = una en punto.
on the steering column beneath steering wheel
la una en punto
Unfortunately the power steering unit is on the way out.
remove plastic wheel arch liner remove power steering pump you can leave pipes on .then remove p.a.s pump bracket may have to remove water pump pullly and remove alt from top