Warning lights in dashboard

Hi

I have a 2005 Megane 1,6 sport tourer, and when I drive 80 km or over I get warning ligths in dashboard abs,service left side and brake and stop ligth right side of dash the abs brakes stop working, and when i stop the car and switch of the ignition everything goes back to normal and these things can not be read through obd port of the car I tryed to get Renault garage to fix it but they cannot find anything wrong?? Any Ideas??

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Warning lights in dashboard