steering wire

[variationperson]

got a silly question on the steering column inside there is a black single wire that runs to a light or what does it do,it is where it has P,R,D,1,2 on the column, does it a light when u turn on headlights lmk thanks

[dmjlambert]

For a non-tilt steering column that is a fiber optic cable and it uses the light from the back side of one of the instrument cluster lights and transmits it to the shift indicator. It should be regulated by the rheostat (dimmer) for the instrument cluster lights. For a tilt column the shift indicator bulb is in the steering column and the cable is an electric wire.