abs light on dash board staying on

will probably be one of the sensors
they are easy to test
email if ya need to know how

Yeah maybe a fault with the sensor but in my experience the ABS ring which goes around the drive shaft/C.V. joint it probably broken due to rust.
When this happens it breaks the signal to the sensor throwing it out of sync putting on the abs light.
Check that then the sensors because it could be either.

It means that the electrics on yet another piece of French junk have gone wrong. Try buying a decent car next time.

Take it to your local body shop.