Esteem GL Sedan L4-1.8L (1999)
Dimmer Switch: Testing and Inspection
ILLUMINATION CONTROLLER
Use a light bulb (if equipped) (12V 3.4W) and wire as illustrated.
Move illumination controller knob upward to brighten light bulb and downward to darken it.
If it does not brighten or darken light bulb, replace illumination
controller.