GF88.79-P-2010PQ Dim Automatic Outside Mirror and Inside Rearview Mirror, Function

GF88.79-P-2010PQ Dim Automatic Outside Mirror And Inside Rearview Mirror, Function

- with CODE (249) Automatically dimming inside rearview mirror and outside mirror (driver)
- up to Model Year 8







1 Terminal status
2 Dimming information
3 Adjust dimming stage
A67 Inside rearview mirror unit
A67h1 Automatic dimming mirror sensor, forward
A67h2 Automatic dimming mirror sensor, rearward
A67h3 Automatic dimming mirror
M21/1 Left electrically adjustable and heated outside mirror
M21/1h1 Automatic dimming mirror
N69/1 Left front door control unit
N70 Overhead control panel control unit
N73 EIS [EZS] control unit
CAN B Controller area network bus, class B (interior compartment) (CAN B)

Function requirements
- C. 15R ON or c. 15 ON
- No overvoltage or undervoltage

Function
The inside rearview mirror unit (A67) and the left electrically adjustable and heated outside mirror (M21/1) can be dimmed electro chromatically.This is realized by a layer of electrolyte gel in the corresponding mirror, actuating the light transparency in stages depending on the voltage applied.The electronic circuitry in the inside rearview mirror (A67) senses the ambient light with the automatic dimming mirror sensor, forward(A67h1) and the light hitting the surface of the mirror via the automatic dimming mirror sensor, rearward (A67h2).

The inside rearview mirror unit (A67) evaluates the input variables and sends dimming information to the overhead control panel control module (N70), which transmits the message for the automatic dimming mirror to the CAN B (CAN B).
The left front door control module (N69/1) relays the dimming information and supplies the corresponding actuation voltage to the automatic dimming mirror (M21/1h1) of the left electrically adjustable and heated outside mirror (M21/1). The dimming information from the inside rearview mirror unit (A67) is taken over by the overhead control panel control module (N70), which supplies voltage to the automatic dimming mirror (A67h3).

If an interior light is switched on during automatic dimming mirror or the reverse gear is engaged, dimming is stopped.