independant wheel brake mapping?

[BGs_Ricky]

I assigned independent brakes on my Saitek pedals, they are correctly assigned in the controls menu (as in the image in the post above) and the response seems correct (brakes off: input=-1.00;output=0 ; brakes on: input=1;output=1), but in-game they don't work at all, at least on the Spit Mk.II. There is no sound and no visible braking effect, and I dont see any difference in ground handling when applying the brakes...anyone encountering the same problem ?