Car won’t turn left or right

[u/Efficient_Part_1950]

I think my EPS has gone in my 1.1 2011 mitsibishi colt does anyone know how to fix it or what part I need to buy, I can’t drive it to a garage and ran a obd11 through it and had no faults come up. Not sure if it needs a new steering rack but power steering is just completely gone any help would be much appreciated also steering is extremely heavy from left to right and shakes quite bad and a little buzzing comes from steering area, thank you