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

GF88.79-P-2010Q Automatic Dimming Outside Mirror And Inside Rearview Mirror, Function
- with CODE (249) Automatically dimming inside rearview mirror and outside mirror (driver)
- up to 31.5.04

Component Identification:

Function requirements
^ Circuit 15R On or circuit 15 ON
^ No overvoltage or undervoltage
^ Reverse gear not engaged
^ Vehicle interior lighting off

Function
The inside rearview mirror (A67) and the left electrically adjustable and heated outside mirror (M21/1) are dimmed in stages depending on the control voltage connected.The electronic circuitry in the inside rearview mirror (A67) senses the ambient light with the mirror dimming sensor toward front (A67h1) and light shining into the mirror with the mirror dimming toward rear sensor (A67h2).

The inside rearview mirror (A67) evaluates these input variables and transmits dimming information to the overhead control panel control module (N70), which places the message for dimming on the CAN-B bus (CAN-B)
The left door control module (N69/1) evaluates the dimming information and supplies the corresponding actuation voltage to the mirror dimming (M21/1h1) in the left electrically adjustable and heated outside mirror (M21/1).The dimming request for the mirror dimming (A67h3) in the inside rearview mirror (A67) is transmitted via the overhead control panel control module (N70).