Technical Car fixed by dealer but engine fault light keeps appearing

[Buttons0115]

So after two weeks of my jtd stilo juddering at speed after new shafts and cleaning by the dealer this is now fixed. Motorway driving yesterday was a dream but every now and then the display beeps and briefly the engine fault light appears then goes straight away.... The dealer said he could not acsess the fiat computer to erase the car computer memory so I may get ghost messages? Is this right because it gives me endless driving worry! :-(

 

[Yellow Peril]

You could try disconnecting the battery for a couple of hours so the system re-sets. May not cure it...but it costs nothing to try.