[dieter]

Initially, my speedometer ceased to function on my 1990 LeSabre and some post had attributed the failure to a possible VSS. Someone had said that if the sensor was bad, then the speedometer and cruise control would not work. The cruise control does work ,but then I learned the VSS also controls the shifting of gears, but I am not sure about this point; my gears shift okay. So I am at a loss to attribute the speedometer failure to the VSS.

Does the VSS control the speedometer and the cruise control and the shifting of gears? If it does do all of that. I can not attribute the speedometer failure to the VSS. If not the VSS, then I assume the speedometer cluster needs to be replaced. Can anyone critique my assumptions?