The Hall sensor is the speed signal feed for the CC module..
The other VSS sensor is in the rear axle and it is for ABS and ASR

If it were my car , I would change the stop lamp switch , reset the codes and see what happens

after I checked fuse 5 for good contact..

Then I would check the hall for ohms..
in that order..

Stop lamp is common intermitant problem, specially w/ASR .. but you did not get back to me on my ASR????.. so , I have to guess..