ABS Fault on Megane cc

[tonystime]

Hi

I have 2005 megane cc 1.9

I am having problems with the abs.
When I start the car up its fine but after a while the abs waring light comes on along with the stop light and also the brake light. I can have travelled 20 to 30 miles before this happens or just a couple. If I stop the engine and restart it the above sequence happens again.

I plugged a fault reader into the car and it said there was a fault with the drivers side front sensor. I replaced that but the fault is still the same. I did reset the fault code and it was clear until the above happened again.

Any suggestion?

Thanks

Tony