Technical Power steering problem

[Jiminspain]

Hello everybody I have a Stilo 2002 1.9 jtd today I had to travel for about 4 miles on very rough bumpy unkept roads I went into a cafe had a coffee when I got back into my car and driven for about 50 yards all of a sudden I lost my power steering managed to get to a clear piece of road stopped the car had a look to see if there was anything leaking there wasnt. The power steering warning light was lit, I stopped the engine waited for a few minutes restarted the car warning light went out and had no trouble all the way home.
Anybody give me any idea what could be the cause, appreciate your input.

 

[yellowstilo]

Low battery voltage causes the power steering to be switched off due to it's very high current drain - it protects the rest of the electronics to keep on working.
So check your battery and alternator.