MODELS   221.0 /1

P82.20-2784-08

N70 Overhead control panel control unit

Location The overhead control panel control unit is located in the area of the inside rearview mirror unit (A67). Design The overhead control panel control unit contains the following components: front dome lamp (N70e1) Roof system switch (N70s1) Rear dome lamp switch (N70s2) door contact ON and OFF switch (N70s3) Front dome lamp switch (N70s4) Left front reading lamp switch (N70s6) Right front reading lamp switch (N70s7) Rear roller sun blind switch (N70s10) (for code (413) Panoramic glass roof with top sliding roof SOS pushbutton switch (S93/3) ( only)

Function The overhead control panel control unit is connected to the interior CAN for exchanging data, reads in following sensors, switches and consumers and actuates their voltage supply, function as well as switch and controls illumination. Controlling Master control unit for interior lights (IBL) For code (413) Panoramic glass roof with top sliding roof: Panoramic glass top sliding roof For code (414) Power glass tilting/sliding roof: Tilting/sliding roof (SR [SHD]) Gateway to the interior CAN Information from the rain/light sensor (B38/2) Dimming information for the left electrically adjustable and heated outside mirror (M21/1)

Reading in of sensors For code (413) Panoramic glass roof with top sliding roof: Roof system Hall sensor 1 (M12b1) Roof system Hall sensor 2 (M12b2) Front roller sun blind Hall sensor 1 (M54b1) Front roller sun blind Hall sensor 2 (M54b2) Rear roller sun blind Hall sensor 1 (M54/1b1) Rear roller sun blind Hall sensor 2 (M54/1b2) For code (414) Power glass tilting/sliding roof: Roof system Hall sensor 1 Roof system Hall sensor 2 Reading in the integral switches Front dome lamp switch Rear dome lamp switch Door contact ON and OFF switch Left front reading lamp switch Right front reading lamp switch

For code (413) Panoramic glass roof with top sliding roof: Roof switch Rear roller sun blind switch For code (414) Power glass tilting/sliding roof: Roof switch The SOS pushbutton switch is installed in the overhead control panel control unit. The emergency call system control unit (N123/4), however, supplies the voltage and reads in signals. Reading in external switches Left rear reading lamp switch (S154/1) Right rear reading lamp switch (S154/2)

Switching loads left front vanity mirror illumination (E14/6) right front vanity mirror illumination (E14/7) Left rear vanity mirror illumination (E15/10) Right rear vanity mirror illumination (E15/11) Voltage supply Rain/light sensor Inside rearview mirror unit Left reading lamp (A67e1) Right reading lamp (A67e2) Garage door opener transmitter unit (A67n2) (for code (231) Garage door opener or code (232) Garage door opener with frequency 284-390 MHz) Left rear reading lamp (E11/1e1) Right rear reading lamp (E11/2e1)

For code (413) Panoramic glass roof with top sliding roof: Roof system drive unit (M12) Front roller sun blind motor (M54) Rear roller sun blind motor (M54/1) For code (414) Power glass tilting/sliding roof: Roof system drive unit Discrete inputs Circuit 30 and circuit 31