Didn't you know that the TOD is not switcheable so to speak ?

The vehicross is a FULL TIME 4WD vehicule,unless you swap all the drivetrain there's no switch that will "FIX" the vehicule runnning on all wheels because running on all wheel is part of the vehicule profile.

If you gonna drive a VX you got to accept the fact that you can't mess around with it

What you probably did is messing the TOD front sensors,now find out how much they cost to replace them