GF88.79-P-2010SX Automatic Dimming Outside Mirror and Inside Rearview Mirror, Function

GF88.79-P-2010SX Automatic Dimming Outside Mirror And Inside Rearview Mirror, Function
- with CODE (249) Automatically dimming inside rearview mirror and outside mirror (driver)
- up to model year 08

Component Identification:

Function requirements
^ C. 15R On

Function
The mirror lens of the inside rearview mirror and left outside mirror can be dimmed electro-chromatically. This is realized by a layer of electrolyte gel in the mirror which controls the light permeability in increments depending on the voltage applied.
The inside rearview mirror senses the ambient light via the front mirror dimming sensor and the light hitting the surface of the mirror lens via the rear mirror dimming sensor.

The inside rearview mirror evaluates these input variables and supplies dimming information to the overhead control panel control unit which transmits the message for mirror dimming to the passenger compartment CAN-B bus.
The left door control unit relays the dimming information and supplies the corresponding actuation voltage to the automatic dimming mirror of the left outside mirror.The dimming information for the inside rearview mirror is taken over by the overhead control panel control unit, which supplies the voltage to the mirror dimming of the inside rearview mirror.

If an interior lamp is switched on during mirror dimming or the reverse gear is engaged, the dimming is interrupted.