what caused this ?

[lebesset]

with guidance from MJ have been trying to put out the brake pad wearing sign
although I finally used the shorting out behind the dash method to kill the sign ,the restore to correct working order method threw up some interesting symptoms !

one front wheel jacked up ,wheel off , start engine , engage gear ... holding on footbrake ; after some seconds heavy vibrations on footbrake which stopped after a few seconds FOR some seconds

after test just mentioned pushed lever into park , loud rattling noise for some seconds rather like changing gear on a manual without sufficiently depressing the clutch

remount wheel , lower car onto all wheels......no more vibrations ;tested ABS ...OK

repeated with other front wheel ....exactly the same