Has anyone used icarsoft fault reader if so is it any good ? I just need to find out whats causing the three amigos to come up.

It will work for the 3 amigos but don't ever rely on it when it comes to the td5 engine cos with that is full of crap, there is one just a bit more expensive which works well with the engine too and also with the BCU for some programming named Foxwell NT510 Full System - Land Rover Professional Diagnostic Scan Tool , it's not so good like nanocom or hawkeye but it does the job better than the ICarsoft ... i've seen these both live

I had the icarsoft brand but sold it after getting the Foxwell NT510 (now NT520).
I prefer the Foxwell since I can read codes, clear codes (3 Amigos), reset adaption values and aid in modular bleeding/power bleeding the ABS.
I use it on my 2001 Disco and my wife’s X5.