ABS / Speedo Not Working

Last week my ABS light came on and the speedo stopped working. In the days since it has worked intermittently, some times they work, some times they don't.



I took it to the garage today to fit a new sensor on the front drivers side. The mechanic asked me if i was sure it was the drivers side as he says its usually the passenger side front on most cars but i said it was and he fitted it.



Unfortunately, it hasn't solved the problem. He said to me to book it in again and try the passenger front. Is it worth doing that?



The one he took off on the drivers side did have a split in the cable so i was sure that was the problem but obviously not.



Any ideas anyone?

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