Operating Light Control Rheostat does not Change Light Brightness [06/2018 - 09/2022]: Description

The combination meter assembly receives signals from the light control rheostat to adjust the illumination of the combination meter assembly. The combination meter assembly sets the illumination level based on the user operation of the light control rheostat.

HINT: 

The tail cancel switch is built into the light control rheostat. When the light control rheostat is moved to the highest position, the tail cancel switch will turn on and the meter illumination will be set to maximum brightness.