Can ABS Sensor trigger Tyre Pressure Warning

[RobC]

Hi Guys
I need some technical advice. For the last couple of years I've had intermittent tyre pressure warnings. The tyre pressure always checks out. Additionally I get intermittent SELF LEVEL SUSP INACT warnings. My 2004 X5 has been to the techies more times than I can remember and each time they say they can't find a problem and nothing is recorded in the logs. My X went out of warranty 3 months ago. I had 4 new tyres fitted at the dealer a week ago and the very next day I get all 4 warning lights, ABS, Tyre Pressure, 4x4 DCS and Break warning light up. Back to the dealer and they tell me I have a failed rear right wheel speed sensor (ABS sensor). So my question is.... could this have been sending duff info on and off over the last 2 years causing the tyre pressure light to come on and now it's finally failed? Dealer says he doesn't reckon and I have to pay for a new sensor fitting... Oh and could they have caused the problem when they fitted the new tyres?
Thanks
RobC