Follow these instructions carefully.
Just feel your way down from the steering to the bottom of the car. This conduit like plastic piece is called a steering cover, lower.
Now if you kneel and look up at this, you'll find there are three screw fasteners holding it to the housing, two towards the top and one on mid bottom. Remove them with a star screw driver and take the cover off.
Now you'll see a blue relay just under the horn assembly that needs to be tickled out. Be careful - there is a clip inside on the left hand side so it comes out with a knack and not brute force. Find the way to do it. Nudging from the right and pulling out is what I think I did. If you break the clip, the relay wont sit firmly the next time you insert it (with a "click"). Don't get scared, try it, and you'll be fine after a bucket of sweat .
ANOTHER WORD OF CAUTION!!!
As your indicators and hazard are working, there could be nothing wrong with the indicator relay. My left indicator didn't work and the workshop said that I should change the combination switch that costs a small packet. I studied it carefully for all idiosyncrasies. eg, it stopped or started working when I revved. Then, after careful consideration of common factors, we discovered that the earthing in the rear left tail lamp was improper. Tightly knocking it to restore connection made the whole thing ok at zero cost. What's interesting is that the Fiat Palio seems to have a life of its own; I don't know about the little brother Punto and Linea. But it sure is alive, and I, in turn, am sure I'm not whipping a dead horse
I have also added a 99rpm link only to show you how this cover looks and how it could come off. I'd like to mention here that this is a fantastic site and gave a new lease of life to my lovely eleven year old car.
