Dimmer Switch - Description
DESCRIPTION
This vehicle has a separate dimmer module (1) that is located on the instrument panel, in a mounting hole inboard of the headlamp switch mounting hole, outboard of the steering column. The standard dimmer module features a single thumbwheel (3) for panel lamps dimming and interior lighting control. There are also two optional switches with a second thumbwheel (2). The second thumbwheel is used for ambient (also known as halo) lighting control in vehicles with the ambient lighting option, or for headlamp leveling control in vehicles manufactured for certain markets where headlamp leveling is required.
The dimmer module is constructed of molded plastic. The thumbwheel is molded plastic and knurled around its circumference to ease operator control. The dimmer module face plate is labeled with graphics and International Control and Display Symbol icons to clearly identify the functions of the thumbwheel or optional thumbwheels.
The dimmer module housing is secured within the mounting hole of the instrument panel by three screws, two on the top and one on the bottom. The back of the dimmer module housing has an integral connector receptacle containing terminal pins that connect the module to the vehicle electrical system through a dedicated take out and connector of the instrument panel wire harness. Panel dimmer controlled Light Emitting Diode (LED) units soldered to the circuit board within the module provide back lighting for visibility at night, but are not serviceable.
The dimmer module cannot be repaired and, if ineffective or damaged, it must be replaced.