The connector for the front abs sensors is just behind the subframe and fixed to the bodyshell on the relevant side.
If you search for MJM as the auther and abs problem as the title you will find all the relevant details kindly supplied to me by the forum.
If I remember correctly there is also a link to a supplier on ebay. I bought mine from him and it was fine.
I think the wires in the sensor lead break over time and movement, sometimes make the circuit and sometimes don't.
Mine went intermittant faulty before failing altogether.
hth
ABS light on constantly
Moderator: RichardW
Another question
OldGuy
Is the connector on the inside of the inner wheel arch lining?
many thanks
Paul
Is the connector on the inside of the inner wheel arch lining?
many thanks
Paul
Broomie(paulB) Xantia Hdi 90 estate