o.k get what your'e saying but how come once eas was back on and working noise went , eas inactive warning now back on and eas not working and noise / slip re accurs instantainiously ?
Can't answer that one. I have never had this problem on a P38 but it is almost same fault as my daughters Spacewagon. If she turns left and touches brake ever so slightly the clonk is evident. This is the ABS putting the brake on and off because it thinks one wheel is locking up when in fact all it is doing is going around a smaller radius than the outer wheel. In this case as the vehicle is turned left, because of bad reading from the NS sensor it thinks the NS wheel is locking, because it is moving slower than the OS wheel, so it pulses the brake on and off causing the clonk. But the clonk comes from the OS wheel. Would think that if the problem only occurs on brake application it is an ABS fault if it happens without any brake application it is a traction control fault. Sorry cannot be more specific. May not be but worth a look.