GF82.20-P-5216TX Overhead Control Panel Control Unit, Component Description

GF82.20-P-5216TX Overhead Control Panel Control Unit, Component Description

Shown with code (414) Power glass tilting/sliding roof, with code (551) Anti-theft alarm system (ATA [EDW]), with code (359) TELE AID emergency call system

Component Identification:

From 1.7.06, vehicles with code (494) USA version and with code (498) Japan version, will no longer be equipped with the interior protection switch (N70s8) and the tow-away protection switch (N70s9).

Location
The overhead control panel is in the headliner, in the area of the inside rearview mirror unit (A67).

Design
The overhead control panel contains the following components:
^ In-car temperature sensor (N70b1)
^ Front dome lamp (N70e1) Light ring (N70e4)
^ Roof switch (N70s1), in vehicles with code (414) Power glass tilting/sliding roof
^ Rear dome lamp switch (N70s2)
^ Door contact ON and OFF switch (N70s3)
^ Dome lamp ON and OFF switch (N70s4)
^ Left front reading lamp switch (N70s6)
^ Right front reading lamp switch (N70s7)
^ Interior protection switch (N70s8), in vehicles with code (882) Interior monitoring (with ATA [EDW] only) (in vehicles with code (494) USA version or with code (498) Japan version up to 30.6.06)
^ Tow-away protection switch (N70s9), in vehicles with code (551) Anti-theft alarm system (ATA [EDW]) (in vehicles with code (494) USA version or with code (498) Japan version up to 30.6.06).
^ SOS switch (S93/3s1), in vehicles with code (359) TELE AID emergency call system

Task
The overhead control panel reads in the following sensors and switches and controls their function illumination and switch and controls illumination. The following consumers are activated depending on requirements. The overhead control panel is connected to the Controller Area Network bus Class B (interior) (CAN-B) to exchange data.

Controlling
^ Master control unit for interior lights (IBL)
^ Anti-dazzle function of inside rearview mirror and driver-side outside mirror
^ Tilting/sliding roof (SR), in vehicles with code (414) Power glass tilting/sliding roof

Reading in sensors
^ Rain/light sensor (B38/2)
^ In-car temperature sensor
^ Automatic dimming interior rearview mirror sensor, forward (A67h1)
^ Automatic dimming interior rearview mirror sensor, back (A67h2)
^ SR Hall sensor 1 (M12b1), in vehicles with code (414) Power glass tilting/sliding roof
^ SR Hall sensor 2 (M12b2), in vehicles with code (414) Power glass tilting/sliding roof

Reading in sensors via bidirectional interface
^ Interior protection sensor (E15/3b2), in vehicles with code (882) Interior monitoring (with ATA [EDW] only) (in vehicles with code (494) USA version or with code (498) Japan version up to 30.6.06)

Reading in of integrated switches
^ Roof switch
^ Dome lamp ON and OFF switch
^ Door contact ON and OFF switch
^ Rear dome lamp switch
^ Left front reading lamp switch
^ Right front reading lamp switch
^ Interior protection switch (in vehicles with code 494) USA version or with code (498) Japan version up to 30.6.06)
^ Tow-away protection switch (in vehicles with code (494)
^ USA version or with code (498) Japan version up to 30.6.06) SOS switch

Reading in switches via bidirectional interface
^ Dome lamp dimmer button (+) (E15/3s4)
^ Dome lamp dimmer button (-) (E15/3s5)

Switching consumers via the bidirectional interface
^ Dome lamp (E15/3e3)
^ Light ring (E15/3e4)

Switching loads
^ Left front vanity mirror illumination (E14/6)
^ Right front vanity mirror illumination (E14/7)
^ Inside rearview mirror unit (A67)
^ In-car temperature sensor fan motor (N70m1)
^ Light ring
^ Ambient lamp (A67e3)
^ SR motor (M12m1),
^ Garage door opener transmitter unit (A67n2) (with code (231) Garage door opener or with code (232) Garage door opener with frequency 284 - 390 MHz)