Hello, I’m new here in the forum and have a big problem with my Fiat 500. When I start the FZ everything is ok.After approx.2-3min. the battery control light appears, but when driving there is no impairment.From the time I start very slowly (step speed) or stop the power steering does not react any more. If you continue the drive at normal speed the servo reacts again normal. Errors read out, battery and alternator tested without success. MfG Mayhe