Hang onto the wheel bearing if it's quiet Mike, as all that need be replaced is the GACO seal with a good one from a clapped out bearing
That is exactly the same fault as the ZT a few weeks back, and interestingly enough, if you clear the faults, then drive for some distance with cruise enabled, it will give you which wheel is giving the plausibility error.
The same fault is also incurred if the car is driven with a space saver spare fitted, or a single tyre of the wrong profile
If I have an issue like this, I find a quiet straight stretch of road, or a car park, then driving slowly in a straight line watch the live data from the ABS sensor overview.
It is almost always possible to detect which wheel is causing the problem, as the readout from one wheel will momentarily drop
Brian
